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6. what bonds are present in the secondary structure of a protein?
- hydrogen, ester and disulphide bonds
- hydrogen, ester and ionic bonds
- peptide, hydrogen, ionic and disulphide bonds
- disulphide, hydrogen, peptide and ester bonds
7. what is an example of a non-reducing disaccharide?
8. which part of a phospholipid faces outward in the membrane?
- the hydrophobic tail
- the hydrophilic head
- the hydrophobic head
- the hydrophilic tail
9. which property of water allows fish to live in a frozen pond?
- water=equal density-ice floats
- water=high density- ice floats
- water=low density- ice floats
10. what are micronutrients?
- inorganic ions needed in minute concentrations
- organic ions needed in minute concentrations
- inorganic ions needed in large concentrations
- organic ions needed in small concentrations
11. what glucose monomers are present in chitlin?
12. which bonds are formed after a condensation reaction?
- ester bonds
- peptide bonds
- glycosidic bonds
13. what are proteins made of?
- amino acids
- glycerol
- starch
14. what us the colour of a positive test for protein?
- orange
- purple
- green
- brick red
15. what is the name of the bond formed from a condensation reaction?
- hydrogen bonds
- glycosidic bonds
- peptide bonds
- ester bonds
16. what is meant by metabolic water?
- water that contains minerals
- water produced from the oxidation of food
- water that contains metal ions
17. what does hydrophilic mean?
- interacts with water
- repels water
18. what is the biological role of sucrose?
- transport in phloem of plants
- germinating seeds
- in milk
19. what are the components of a trigyceride?
- carboxy and glycerol
- glycerol and fatty acids
- carboxyl and fatty acids
- glycogen and fatty acids
20. why is the fact that water is transparent important to living organisms?
- so light can pass through for photosynthesis
- so they can see through it when they swim
