List the four different components that make up an amino acid.
Back
Card 17
Front
Why does the quaternary structure of collagen make it suitable for use as a tendon?
Back
Card 18
Front
Suggest how the cross-linkages between the amino acids of polypeptide chains increase the strength and stability of a collagen fibre.
Back
Card 19
Front
The points where one collagen molecule ends and the next begins are spread throughout the fibre in different places. Explain why this arrangement is necessary for the efficient functioning of a tendon.
Back
Card 20
Front
Explain why enzymes are effective in tiny quantities.
Back
Card 21
Front
Outline why changing one of the amino acids that make up the active site could prevent the enzyme from functioning.
Back
Card 22
Front
Explain why changing certain amino acids that are not part of the active site prevents the enzyme from functioning.
Back
Card 23
Front
Explain why the induced fit model is a better explanation of enzyme action than the lock and key model.
Back
Card 24
Front
Explain why enzymes function less well at lower temperatures.
Back
Card 25
Front
Explain how high temperatures may completely prevent enzymes from functioning.
