Biology Test

60 flashcardsby maggies13
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1
What is the charge of a Proton?
Positive
2
What is the charge of a Neutron?
No charge
3
What is the charge of an Electron?
Negative
4
Where is the Proton located?
In the Nucleus
5
Where is the Neutron located?
In the Nucleus
6
Where is the Electron located?
orbiting
7
What is the mass of a Proton?
2 sub particles
8
What is the mass of a Neutron?
2 sub particles
9
What is the mass of an Electron?
none
10
0 electrons were lost, 1 electron was gained. What is the resulting charge of the atom and is it Oxidized or Reduced?
-1 and Reduced
11
3 electrons were lost, 0 electrons were gained. What is the resulting charge of the atom and is it Oxidized or Reduced?
+3 and Oxidized
12
2 electrons were lost, 0 electrons were gained. What is the resulting charge of the atom and is it Oxidized or Reduced?
+2 and Oxidized
13
Explain the following property of water: Polar
Water is polar. It has negative and positive ends.
14
Explain the following property of water: Cohesive
Chains or blocks. Sticks to itself.
15
How does the Cohesive property of water help organisms stay alive?
Water flow
16
Explain the following property of water: Adhesive
Sticking to other polar molecules
17
How does the Adhesive property of water help organisms stay alive?
Resists seperation
18
Explain the following property of water: High Specific Heat
Takes a lot of heat and energy from others.
19
How does the High Specific Heat property of water help organisms stay alive?
Allows to maintain life and different temperatures
20
Explain the following property of water: Good Solvent
Dissolve substances as solute
21
How does the Good Solvent property of water help organisms stay alive?
Able to dissolve to digest
22
Explain the Ionic bond
Metal bonds with a non-metal
23
Explain the Covalent bond
Non-metal bonds with non-metal
24
Explain the Hydrogen bond
Weak bonds, when hydro atom is covalently bonded to negative atom.
25
What are the 3 elements in ALL organic molecules?
Lipids, protein, carbohydrates
26
What is the 4th element found in proteins and nucleic acids?
Sulfur
27
What is the chemical formula of Glucose, Fructose, & Galactose?
C6, H12, O6
28
What is the monomer unit of carbohydrates (everything for movement)?
Monosaccharides
29
What is the monomer unit of lipids (storage)?
Fatty acids
30
What is the monomer unit of proteins (build)?
Amino Acids
31
What is the monomer unit of nucleic acids (info)?
Nucleotide
32
What is the function of carbohydrates?
Energy source for animals, long lasting
33
What is the function of lipids?
Non-polar molecules, do not dissolve, store lots of energy
34
What is the function of proteins?
Build enzymes, source of energy
35
What is the function of nucleic acids?
Stores hereditary information
36
Give an example of carbohydrates
Bread, rice, cereal
37
Give an example of protein
Eggs, chicken, meat, dairy, peanut butter
38
Give an example of lipids
Butter, oil, wax
39
Give an example of nucleic acids
DNA, RNA, anything living
40
pH is a measurement of what 2 ions? (name and formula)
Free hydrogen and Hydronium ion, (H+)(H3O+)
41
Given that H3O+ > OH is it acid, base, or neutral?
Acid
42
Given that H3O+ < OH is it acid, base, or neutral?
Base
43
Given that H3O+ = OH is it acid, base, or neutral?
Neutral
44
How many times more H3O+ does a pH of 3 have compared to a pH of 6?
100
45
How many times more OH- does a pH of 12 have compared to a pH of 8?
10,000
46
Why don't our cells die when we consume a large amount of orange juice which is highly acidic?
They refuse to give in to the acid from the enzymes
47
What is the purpose of a catalyst?
To bring a specific chemical reaction
48
What is an enzyme?
Proteins produced by living organisms
49
Are enzymes reusable?
Yes, but they can't be changed
50
What 2 factors affect enzyme activity?
Temperature and pH
51
Which factor slows down enzyme activity?
Water (hydrogen peroxide)
52
Which factor stops enzyme activity?
If pH is lower or higher than optimal pH
53
Why does an enzyme stop working?
Extreme high temperature
54
Is energy released or absorbed endergonic or endothermic?
Endergonic
55
Is feels hot or cold endergonic or endothermic?
Endothermic
56
Is usually a synthesis or decomposition reaction endergonic or endothermic?
Endothermic
57
Is energy released or absorbed exergonic or exothermic?
Exergonic
58
Is feels hot or cold exergonic or exothermic?
Exothermic
59
Is usually a synthesis or decomposition reaction exergonic or exothermic?
Exothermic
60
What is the difference between saturated and unsaturated fats?
Satured fats are bad and there's a double bond between them. Unsaturated fats are good, carbon.
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