Biology
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1
Properties of Water
- High heat capacity
- Cohesion (sticks together)
- Medium for reactions
- Universal solvent
- Adhesion (Sticks to other surfaces)
2
Biological roles of water
- Regulars temperature (sweating, evaporation)
- Metabolic reactions (Hydrolysis)
- Transport (blood,xylem,phloem)
3
Starch Structure
- Amylose (unbranched)
- Amylopectin (branched)
- beta glucose
- alpha glucose
4
Glycogen
- Amylose (unbranched)
- Highly branched alpha glucose polymer
5
Starch Function
- Cell wall structure in plants
- Energy storage in plants
- Energy storage in animals
6
Glycogen Structure
Highly branched alpha glucose polymer
7
Glycogen Function
- Energy storage in animals
- Cell wall structure in plants
- Energy storage in plants
8
Triglycerides Function
long-term energy storage
9
Phospholipids Structure
2 Fatty acids + 1 glycerol +phosphate group
10
Tests for Reducing sugars result
Brickred after precipitate
11
Emulsion tests for
- lipids
- proteins
12
What does the Biuret test results For proteins
- Purple/violet colour
- Cloudy white emulsion
13
Cellulose Function
- Cell wall structure in plants
14
Cellulose Structure
Straight chains of beta glucose
15
Type of carbon bond
- Ester bonds
- Single bond
- Double bond
16
Benedicts plus HCl results in brick red after boiling is a positive for ...
- proteins
- Reducing sugars
- non reducing sugar
17
Iodine test for
Starch
18
Iodine test positive results
Blue black colour
19
Protein type of Haemoglobin
Glubular
20
Function of Haemoglobin
Transports oxygen transport in blood
21
Collegen function
Strength in connective tissue
22
Collegen Structure
- 4polypeptides + iron (Fe²+)
- 3 polypeptide in triple helix
23
Cells as basic units of life : Centrioles present in
- Animal cells
- Plant cells
24
Ribosomes function
protein synthesis
25
Protein synthesis definition
Protein synthesis is the process by which cells build proteins
26
Lysosomes
Are membrane enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymer- Proteins,nucleic acid , carbohydrates, and lipids
27
Mitochondria function
- Respiration
- Store energy
28
Chloroplast function
photosynthesis
29
Why is endoplasmic reticulum (smooth ER)
It lack ribosomes
30
Golgi body
a complex of vesticles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and movement of substances and organelles within cell.
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