Why will a decrease in ph of the stomach affect protein digestion?
a) decrease in ph of the stomach will distort the structure of peptides in food, which affects the action of the enzyme pepsin.
b) decrease in ph of the stomach will distort the active site of the enzyme pepsin, which affects it's action.
c) decrease in ph of the stomach will distort the active site of the enzyme lipase, which affects protein digestion.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate