What to work on

Question 1

Anaerobic respiration (humans) equation

Answer 1

Glucose —> Lactic Acid

Question 2

Aerobic respiration equation

Answer 2

Glucose + Oxygen —> Carbon Dioxide + Water (+ Energy Release)

Question 3

Anaerobic respiration (plants and yeast) equation

Answer 3

Glucose —> Ethanol + Carbon Dioxide (+ Energy Release)

Question 4

What is optimum temperature?

Answer 4

The temperature where the enzyme has the highest rate of activity.

Question 5

What effect does low temperature have on enzymes?

Answer 5

Decrease kinetic energy resulting in less successful collisions.

Question 6

What effect does high temperature have on enzymes?

Answer 6

Increases kinetic energy of the particles, increasing chances of successful collisions.

Question 7

Enzymes with very low optimum temperatures have very flexible structures. Using your own knowledge of enzymes and the collision theory, why do these enzymes need this flexibility?

Answer 7

• At low temperatures kinetic energy is slow, substrates/enzymes move slowly so fewer successful collisions happen.
• Collisions have less energy because of this
• Increased flexibility of the active site increases the chance of successful collisions.