1a method of problem-solving involving observation to test a hypothesis;
Scientific Method
2A process of critical thinking that uses observations and experiments to investigate testable predictions about the physical universe.
scientific method
3an educated prediction of a possible outcome- a predicted answer to your question;
Hypothesis
4 A testable explanation for observations and questions about the physical universe, using an educated prediction based on research
hypothesis
5testing an idea or hypothesis through a controlled investigation
Experiment
6A test using observations and controlled variables to discover answers to questions, and/or to check a hypothesis.
experiment
7a standard against which other conditions can be compared in an experiment
Control Group
8the factor being tested; Something that can affect a system being examined, and is therefore a factor that may change in an experiment.
Variable
9the act of making and recording measurements; the act of noticing or paying attention
Observation
10drawing a conclusion or making a logical judgment on the basis of observations;
Inference
11A logical explanation or conclusion past or present based on observations and/or facts. i.e. I saw people wearing rain coats, so it must be raining.
inference
12a collection of facts from which conclusions may be drawn;
Data
13Information, measurements and materials gathered from observations that are used to help answer questions.
data
14or responding variable the outcome factor; the variable that may change in response to manipulations of the independent variable
Dependent variable
15or manipulated variable, the experimental factor that is manipulated; the variable whose effect is being studied
Independent variable
16is observable clues and data that can be used to prove or disprove something
Evidence
17is using the science of machines to solve a problem or create a product. The science of machines and their use
Technology
18a statement made about the future based on experience or observations.
Prediction
19A statement made about the future outcome of an experiment based on past experiences or observations. i.e. If there are dark grey clouds, it will rain.
prediction
20the entire physical universe
Nature
21to compare the characteristics of something with a standard;
Measure
22To compare the characteristics of something (such as mass, length, volume) with a standard (such as grams, meters, liters).
measure
23is the study of nature and the physical world using the scientific method
Science
24to alter something already written or printed, in order to make corrections, improve, or update
Revise
25A widely accepted concept for generalized patterns in nature that is supported by much scientific evidence based on data collected using scientific methods accepted as factual.
scientific theory
26a rule that describes a pattern in nature like gravity
scientific law
27the abstract separation of a whole into its constituent parts in order to study the parts and their relations to better understand the whole:
analysis
28The breakdown of something that is complex into smaller parts in such a way that leads to a better understanding of the whole.
analysis
29a fake substance having no effect but given as a control in an experiment
Placebo
30A way of organizing, writing, and conducting the experiment. An ordered series of steps followed to help answer a question or complete an activity.
Procedure
31theory that states that all organisms are made of cells, all cells are produced by other living cells, and the cell is the most basic unit of life.
cell theory
32jellylike substance inside cells that contains molecules and in some cells organelles.
cytoplasm
33membrane-bound structure that is specialized to perform a distinct process within a cell.
organelle
34cell that does not have a nucleus or other membrane-bound organelles.
prokaryotic cell
35cell that has a nucleus and other membrane-bound organelles.
eukaryotic cell
36network of proteins, such as microtubules and microfilaments, inside a eukaryotic cell that supports and shapes the cell.
cytoskeleton
37organelle composed of a double membrane that acts as the storehouse for most of a cell's DNA.
nucleus
38interconnected network of thin, folded membranes that produce, process, and distribute proteins.
endoplasmic reticulum
39organelle that links amino acids together to form proteins.
ribosome
40stack of flat, membrane-enclosed spaces containing enzymes that process, sort, and deliver proteins.
golgi apparatus
41small organelle that contains and transports materials within the cytoplasm.
vesicle
42bean-shaped organelle that supplies energy to the cell and has its own ribosomes and DNA.
mitochondrion
43organelle that is used to store materials, such as water, food, or enzymes, that are needed by the cell.
vacuole
44organelle that contains enzymes.
lysosome
45small cylinder-shaped organelle made of protein tubes arranged in a circle; aids mitosis.
centriole
46rigid structure that gives protection, support, and shape to cells in plants, algae, fungi, and bacteria.
cell wall
47organelle composed of numerous membranes that are used to convert solar energy into chemical energy; contains chlorophyll.
chloroplast
48double-layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of a cell.
cell membrane
49molecule that forms a double-layered cell membrane; consists of a glycerol, a phosphate group, and two fatty acids.
phospholipid
50model that describes the arrangement and movement of the molecules that make up a cell membrane.
fluid mosaic model
51condition or quality of allowing some, but not all, materials to cross a barrier or membrane.
selective permeability
52protein that detects a signal molecule and performs an action in response.
receptor
53movement of molecules across the cell membrane without energy input from the cell.
passive transport
54movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
diffusion
55difference in the concentration of a substance from one location to another.
concentration gradient
56diffusion of water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration.
osmosis
57solution that has an equal concentration of dissolved particles compared with another solution.
isotonic
58solution that has a higher concentration of dissolved particles compared with another solution.
hypertonic
59solution that has a lower concentration of dissolved particles compared with another solution.
hypotonic
60diffusion of molecules assisted by protein channels that pierce a cell membrane.
facilitated diffusion
61energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration.
active transport
62uptake of liquids or large molecules into a cell by inward folding of the cell membrane.
endocytosis
63uptake of a solid particle into a cell by engulfing the particle; see endocytosis.
phagocytosis
64release of substances out a cell by the fusion of a vesicle with the membrane.
exocytosis
65Diffusion
the movement of particles from regions of higher density to regions of lower density.
66Osmosis
the diffusion of water through a semipermeable membrane.
67Passive Transport
the movement of substances across a cell membrane from high concentration to low concentration without the use of energy by the cell.
68Active Transport
the movement of substances across the cell membrane that requires the cell to use energy.
69Endocytosis
the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
70Exocytosis
the process by which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane.
71What is photosynthesis?
The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
72What are the inputs of photosynthesis?
Carbon dioxide, water, and sunlight.
73What are the outputs of photosynthesis?
Oxygen and glucose.
74the process by which cells use oxygen to produce energy from food. Oxygen+Glucose = Water + Carbon Dioxide+ATP
Cellular Respiration
75the breakdown of food without the use of oxygen. In animal cells, Glucose=Carbon Dioxide + Lactic Acid + ATP
fermentation
76the life cycle of a cell. The three phases are Interphase (DNA copies), Mitosis(Chromosomes separate and form 2 nuclei), and Cytokineses (cytoplasm splits into 2 new cells)
Cell Cycle
77in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA.
Chromosome
78chromosomes that have the same sequence of genes and the same structure.
Homologous Chromosomes
79in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes.
Mitosis
80the division of the cytoplasm of a cell to create two daughter cells; animal cells separate by pinching the membrane and plant cells create a cell plate to allow the cell membrane and cell wall to form before separation
Cytokinesis
81Bodies of tightly coiled chromatin; visible during cell division. Two chromatids bound at a centromere make a chromosome.
Chromatids
82The region of the chromosome that holds the two sister chromatids together during mitosis.
Centromere
83A structure located at the midline of a dividing plant cell, inside which the new cell wall forms during cytokinesis before separation
Cell Plate
84DNA is copies and is the first step in the Eukaryotic Cell Cycle
Interphase
85First step of mitosis where the chromosomes condense into rodlike structure
Prophase
86Second step of Mitosis, the nuclear membrane dissolves and the chromatids (chromosomes) line up in the center of cell
Metaphase
87Third step of Mitosis, the chromatids (chromosomes) are pulled to opposite side of cell by centromere
Anaphase
88Fourth step of Mitosis, new nuclear membrane forms around each set of chomatids (chromosomes) and Mitosis is complete
Telophase
89The mechanism of cytoplasmic division in plant cells. Structure that forms that cuts through the cytoplasm, before cell separates, and allows cell membrane and cell wall to form before separation.
cell plate
90a combination of two or more tissues that work together to perform a specific function in the body
organ
91a group of organs that works together to perform specific body functions
organ systems
92a collection of organs that helps the body maintain a stable and healthy internal environment; organs include skin, hair, and nails
Integumentary System
93a collection of organs whose primary function is movement; organs include muscles and the connective tissue that attaches them to bones
Muscular System
94the type of muscle that moves bones and helps protect inner organs
skeletal muscles
95the type of muscle found in the heart
cardiac muscles
96the type of muscle found in the blood vessels and the digestive tract
smooth muscles
97a collection or organs whose primary function is to support and protect the body; organs include bones, cartilage, ligaments, and tendons
Skeletal System
98rigid organs that provide support and protection for the body and its organs
bones
99a flexible tissue that gives support and protection but is not rigid like bone
cartilage
100the place where two or more bones connect
joint
101a collection of organs that transport blood to and from your body's cells; organs include heart, arteries, and veins
Cardiovascular System (Circulatory System)
102blood vessels that carry de-oxygenated blood from the body toward the heart
veins
103blood vessels that carry oxygenated blood away from the heart to rest of body
arteries
104a collection of organs that gather and interpret information about the body's internal and external environment and respond to that information; organs include the brain, nerves, and spinal cord
Nervous System
105a specialized cell that sends messages to different parts of the body in the form of fast-moving electrical energy
neuron
106a collection of organs that collect extracellular fluid and return it to the blood; organs include lymph nodes, and lymphatic vessels
Lymphatic (Immune)System
107a collection of organs that break down food so that is can be used in the body; organs include stomach, pancreas, liver, gallbladder, small intestine, and large intestine
Digestive System
108the breakdown of food into smaller pieces that can be absorbed by the body
digestion
109the process of removing wastes from the body; this only applies to waste being passed through a membrane in order to leave the body
excretion
110a collection of glands that control body-fluid balance, growth, and sexual development
Endocrine System
111a chemical messenger that carries information from one part of an organism to the other
hormone
112a group of cells that make special chemicals for the body
gland
113a collection of organs whose primary function is to take in oxygen and expel carbon dioxide; organs include lungs, throat, and passageways that lead to the lungs
Respiratory System
114the exchange of gasses between living cells and their environment; includes breathing and cellular respiration
respiration
115a collection of organs whose primary function is to aid in reproduction; male and female systems are different
Reproductive System
116a collection of organs that remove waste from the blood; organs include kidneys, ureters, urethra, and urinary bladder
Excretory/Urinary System
117the smallest blood vessels
capillaries
118small air sacs at the end of the bronchioles in the lungs; oxygen and carbon dioxide are swapped here
alveoli
119The basic unit of structure and function in all living things
Cells
120A group of similar cells that perform the same function.
tissue
121Connective tissue made of plasma, red blood cells, white blood cells, and platelets.
Blood
122A place in the body where two bones come together
Joint
123outermost layer of skin
Epidermis
124Inner layer of skin
Dermis
125Joint between bones (as at the elbow or knee) that permits motion in only one plane (Like A door)
Hinge Joint
126shoulder and hip, allows circular movment
ball and socket joint
127Allows for rotation around the length of a bone, and only allows for rotation. Skull/Neck
pivot joint
128allows one bone to slide over another; found in wrist and ankles
Gliding Joint
129flow of blood from the heart to the lungs and back to the heart
pulmonary circulation
130flow of blood from body tissue to the heart and then from the heart back to body tissues
systemic circulation
131Movement of blood through the body
circulation
132A body tissue that carries electrical messages back and forth between the brain and every other part of the body., Neurons
nervous tissue
133Tissue that covers outside of the body and lines organs and cavities. Protects body, absorbs nutrients, filters blood & secretes, SKIN
epithelial tissue
134A body tissue that contracts or shortens, making body parts move. 3 Types Smooth( organs), Skeletal (movement), and Cardiac (Heart)
Muscle Tissue
135Provide structure and support, cushions organs, stores nutrients and connects all of its parts, tendons, ligaments, blood, cartilage
connective tissue
136Pressure exerted by the blood upon the walls of the blood vessels, especially arteries, usually measured by means of a sphygmomanometer and expressed in millimeters of mercury.
blood pressure
137tissue that connects bone to bone and supports visceral organs
Ligament
138tissue that connects muscle to bone
Tendons
139a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment and allows the movement of substance in/out of cell
Cell Membrane
140one of the small bodies in a cell's cytoplasm that are specialized to perform a specific function
Organelle
141Organelle inside eukaryotic cells that the DNA in the form of chromosomes are stored, it is the brain of the cell where the DNA instructs the cell what to do
Nucleus
142a single-celled organism that does not have a nucleus or membrane-bound organelles but has loose DNA, cell wall & ribosomes; examples are archaea and bacteria
Prokaryote
143an organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include protists, animals, plants, and fungi but not archaea or bacteria
Eukaryote
144a rigid structure that surrounds the cell membrane and provides support to the cell found in plants (cellulose), fungi (chitin), and bacteria cells
Cell Wall
145a cell organelle composed of RNA and protein; the site of protein synthesis where amino acids are assembled into proteins
Ribosome
146a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids can be smooth or rough
Endoplasmic Reticulum
147in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces ATP or cell energy
Mitochondria
148a cell organelle that helps make and package materials to be transported out of the cell
Golgi Complex
149a small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell
Vesicle
150a cell organelle that contains digestive enzymes
Lysosome
151a group of similar cells that perform a common function
Tissue
152a collection of tissues that carry out a specialized function of the body
Organ
153a living thing; anything that can carry out life processes independently
organism
154The fluid inside a cell, provided structure for cell and allows organelles to move around
Cytoplasm
155the special, normal, or proper activity of an organ or part
function
156are the food producers of the cell. The organelles are only found in plant cells
Chloroplasts
157organelle that stores water, provides structure and stores other materials found only in plant cells
Large Central Vacuole
158It is an organelle that stores digestive enzymes and aid in digestion within the cell found in eukaryotic cells
Small Vacuole
160located on chromosomes and carry hereditary instructions (made of two alleles)
genes
161science of biological inheritance
genetics
162passing of traits from one generation to the next
heredity
163chromosomes with matching information and the same genes and structure
homologous chromosomes
164nuclear division in eukaryotic cells in which each cell receives a copy of the original chromosomes
mitosis
166the physical structure that contains the DNA molecule where the genes are located
Chromosomes
167general feature in a population like hair color or eye color
Characteristic
168the specific expression of a characteristic derived from genes like blond or brown hair or blue eyes
Trait
169the process of cell division for prokarytoic cells where the cell grows larger and then splits in two
Binary Fission
170a method of problem solving involving observation to test a hypothesis
Scientific Method
171an educated predicted answer that answers your question
Hypothesis
172testing an idea or hypothesis through a controlled investigation
Experiment
173a standard against which other conditions can be compared in an experiment
Control
174the factor being tested and can change
Variable
175the act of making and recording measurements; the act of noticing or paying attention
Observation
176drawing a conclusion or making a logical judgment on the basis of observations
Inference
177a collection of facts from which conclusions may be drawn
Data
178a coherent group of propositions or descriptions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation and accepted by the majority as fact.
Scientific theory
179a generalization that describes recurring facts or events in nature; accepted as true throughout the scientific community
Scientific law
180or responding variable the outcome factor; the variable that may change in response to manipulations of the independent variable
Dependent variable
181or manipulated variable, the experimental factor that is manipulated; the variable whose effect is being studied
Independent variable
182a set sequence of steps to complete an experiment to answer a question
Procedure
183the abstract separation of a whole into its constituent parts in order to study the parts and their relations to better understand the whole.
Analysis
184is observable clues and data that can be used to prove or disprove something
Evidence
185an innocuous or inert medication; given as a pacifier or to the control group in experiments on the efficacy of a drug
Placebo
186is using the science of machines to solve a problem or create a product.
Technology
187a statement made about the future based on experience or observations.
Prediction
188the entire physical universe
Nature
189to compare the characteristics of something with a standard
Measure
190is the study of nature and the physical world using the scientific method
Science
191to alter something already written or printed, in order to make corrections, improve, or update
Revise
192the "building blocks" of organisms, basic unit of life has, has DNA, organelles, a membrane and cytoplasm
Cell
193can be complex or simple, made up of sugar molecules linked together, used for energy in organisms and a complex sugar is called a starch
Carbohydrate
194a change that affects the activity of an organism
Stimulus
195a fat or oil molecule or a molecule that has similar properties that does not mix with water and it stores energy for the cells
Lipid
196reproduction in which the sex cells from two parents unite to produce offspring that share traits from both parents
Sexual Reproduction
197a large molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body
Protein
198reproduction that does not involve the union of sex cells and which one parent produces offspring that are genetically identical to the parent
Asexual Reproduction
199a molecule that acts as the main energy source for cell processes
ATP adenosine triphosphate
200a lipid that contains phosphorus and that is a structural component in cell membrane
Phospholipid
201the sum of all chemical processes that occur in an organism and it generates the heat needed for homeostatis
metabolism
202a molecule made up of subunits called nucleotides and is found in DNA
Nucleic Acid
203the maintenance of a constant internal state in a changing environment, like human body temerature
homeostasis
204an organism that can make its own food by using energy from its surroundings
Producer
205an organism that eats other organisms or organic matter
Consumer
206an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Decomposer
207The maintenance of a constant internal state in a changing environment
Homeostasis
208the organ system whose primary function is to support and protect the body and to allow the body to move
Skeletal system
209a place where two or more bones meet
Joint
210the organ system whose primary function is movement and flexibility
Muscular system
211the organ system that forms a protective covering on the outside of the body
Integumentary system
212is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes
Excretory System
213the surface layer of cells on a plant or animal
Epidermis
214is the layer of skin below the epidermis
Dermis
215receives and sends electrical messages throughout your body.
Nervous system
216returns leaked fluids to blood vessels and helps get rid of bacteria and viruses
lymphatic system
217The reproductive system that produces and delivers sperm
Male reproductive system
218The reproductive system that produces eggs and nourishes and protects the fetus
Female reproductive system
219your glands send out chemical messages. Ovaries and testes are part of this system.
Endocrine system
220breaks down the food you eat into nutrients that your body can absorb
Digestive system
221your heart pumps blood through all of your blood vessels
Cardiovascular system
222your lungs absorb oxygen release carbon dioxide
Respiratory system
223is a group of organs that work together to perform body functions, activities, or tasks.
Organ system
224a blood vessel that carries oxygenated blood away from the heart to the body's organs
Artery
225a blood vessel that carries deoxygenated blood to the heart
Vein
226the flow of blood from the right ventricle of the heart to the lungs and back to the left atrium of the heart through the network of pulmonary arteries, capillaries, and veins
Pulmonary circulation
227the movement of blood from the heart to all parts of the body and back to the heart
Systemic circulation
228shoulder and hip, 360 rotation
ball and socket joint
229allows one bone to slide over another; found in wrist and ankles
gliding joint
230Joint between bones (as at the elbow or knee) that permits motion in only one plane
hinge joint
231rotating bone turns around an axis; i.e. connection between radiuslna and humerus
pivot joint
232A body tissue that covers the surfaces of the body, inside and out
epithelial tissue
233A body tissue that provides support for the body and connects all of its parts
connective tissue
234A body tissue that contracts or shortens, making body parts move.
muscle tissue
235A body tissue that carries electrical messages back and forth between the brain and every other part of the body.
nervous tissue
236The smallest vessels where materials are exchanged between the blood and body cells.
cappilaries
237A connective tissue with a fluid matrix called plasma in which red blood cells, white blood cells, and cell fragments called platelets are suspended.
blood
238receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs to be oxygenated.
right atrium
239pumps deoxygenated blood to the lungs
right ventricle
240Pumps oxygenated blood into the aorta
left ventricle
241Chamber that receives oxygenated blood from the pulmonary veins and pumps it into systemic circulation.
left atrium
242Carries deoxygentated blood from the heart to the lungs
pulmonary artery
243Deliver oxygen rich blood from the lungs to the left atrium
pulmonary veins
244the maintenance of a stable internal environment that all the human organ systems work together to achieve
homeostasis
245organ system, regulates body processes through hormone production
endocrine system
246organ system, gas exchange between the internal and external environment
respiratory
247organ system, physical and chemical breakdown of food to aloow absorption of nutrients
digestive
248organ system, production of reproductive cells that will generate offspring
reproductive
249organ system, protection against the external environment and regulation of temperature
integumentary
250organ system, does voluntary and involuntary movement, enables movement
muscular
251organ system, processing center for sensory input, using the input to elicit appropriate responses
nervous
252organ system, circulation of blood, which transports gases, nutrients, hormones, and wastes
cardiovascular
253organ system, circulation of lymph, which maintains fluid balance and helps fight infection
lymphatic (immune)
254organ system, filtration of blood and excretion of wastes from the body
urinary
255organ system, support and protection of many internal organs
skeletal
256this attaches bones together
ligaments
257this attached skeletal muscles to bones
tendons
258is a bone where marrow is. blood cells are made in the marrow of this bone.
femur
259these muscles are involuntary
smooth, cardiac
260this muscle is voluntary
skeletal
261muscle usually attached to the skeleton
skeletal muscle
262muscle found in the walls of the heart
cardiac muscle
263muscles found in walls of internal organs and blood vessels
smooth muscle
264the major organ/muscle of the cardiovascular system
heart
265organ pumps blood through four chambers
heart
266the bottom chambers of the heart
ventricles
267the top chambers of the heart
atria (plural for atrium)
268circulation where blood is pumped to the lungs and back, getting oxygenated in the process
pulmonary circulation
269circulation where blood is pumped to the whole body starting in the aorta and then come back to the heart
systemic circulation
270one way door like structures that regulate the flow of blood between the chambers of the heart
valves
271prevents the backwards flow of blood
valve
272blood vessels that carry clood away from the heart, to the organs of the body
arteries
273blood vessels that carry blood back to the heart and away from the body's organs
veins
274small blood vessels where gas exchange occurs
cappillaries
275the fluid that circulates in the heart and blood vessels to carry oxygen to organs
blood
276cells that contain hemoglobin
red blood cells
277an iron rich protein that carries oxygen, found in red blood cells
hemoglobin
278function in the immune system, helps fight against foreign particles
white blood cells
279help in blood clotting
platelets
280fluid of the blood made mostly of water
plasma
281organ that helps to filter toxins in the blood
spleen
282the four main blood types
o, a, b, ab
283organ chews and grinds food
mouth
284organ where saliva begins chemical breakdown of food
mouth
285pipe connecting mouth to the stomach
esophagus
286organ secretes an extraordinarily strong acid (ph=2) that leads to the breakdown of food
stomach
287substance formed when food is broken down in the stomach and mixed with digestive juices
chyme
288organ that produces the hormone insulin that regulates blood sugar levels
pancreas
289organ that helps neutralie stomach acid
pancreas
290organ that PRODUCES bile, which breaks down fats in food
liver
291pouch-like organ that STORES bile for future use
gallbladder
292chyme enters this organ after digestion is complete where it is absorbed into the bloodstream
small intestine
293this is what chyme is propelled by. these are folded surfaces located in the small intestine
villi
294removes water from the chyme and gets the waste ready from excretion
large intestine
295internal entry and exit point for air
nose
296serves as a passage way for both air and food at the back of the throat
pharynx
298your "windpipe"
trachea
299you speak because of this organ when air passes over the vocal chords
larynx
300connects the pharynx to the lungs
trachea