Enzymes Flashcards

1
Q

Explain why starch is a more suitable storage substance than glucose.

A
  • Starch is a large molecule that cannot pass the cell membrane making it insoluble
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2
Q

Describe and explain how pH and temperature affects enzyme activity

A

pH: Substrate no longer fits
- Active site changes shape
- Denaturation and pH is not optimum

Temperature: Increase in temperature, increases the rate of reaction
- Heat increases kinetic energy
- More collisions at a higher temperature

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3
Q

Name 1 enzyme in a named part of the alimentary canal and describe their role in digestion.

A
  • Carbohydrates like starch are broken down by Amylase in the mouth and then converted into glucose.
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4
Q

Explain why enzymes are necessary for biological processes

A
  • Without enzymes, reactions occur too slowly
  • reactions take place at lower temperatures
  • Enzymes are catalysts
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