cells quiz 1

If the shape of an enzyme's active site were to change, what would happen to the reaction that the enzyme usually conducts? a. The conversion of substrate to products would increase. b. The conversion of substrate to products would decrease. c. The enzyme would no longer be able to bind to its substrate efficiently. d. The conversion of substrate to products would increase and the enzyme would no longer be able to bind to its substrate efficiently. e. The conversion of substrate to products would decrease and the enzyme would no longer be able to bind to its substrate efficiently.

The conversion of substrate to products would decrease and the enzyme would no longer be able to bind to its substrate efficiently.

What ingredients in RUTF peanut paste specifically help bone growth? a. calcium b. vitamin D c. vitamin C d. vitamins C and D e. calcium and vitamin D

calcium and vitamin D

Corn lacks the essential amino acids isoleucine and lysine. Beans lack the essential amino acids tryptophan and methionine. Soy contains all the essential amino acids. Based on this information, is the following statement true or false? You can survive on a diet with corn-based proteins alone. a. True b. False

false

To repair a cell membrane, which macronutrient would supply the needed building blocks? a. protein b. carbohydrates c.fats d. nucleic acids e. amino acids

fats

Where (or how) do we obtain essential amino acids? a. from carbohydrates in our diet b. by synthesizing them from other amino acids c. from oils in our diet d. from bright orange fruits and vegetables e. from protein in our diet

from protein in our diet

Which of these foods is a rich source of protein? a. lean meat, such as chicken breast b. whole grains (e.g., whole wheat bread) c. olive oil d. leafy greens e. berries (e.g., blueberries and raspberries)

lean meat, such as chicken breast

A multivitamin supplement is a(n) _____ supplement. a. macronutrient b. micronutrient c. mineral d. enzyme e. macronutrient and micronutrient

micronutrient

Why must essential amino acids be consumed in our diet? a. They make food more palatable to consumers. b. Our bodies cannot manufacture them. c. They help the body store energy in the form of fat. d. Our bodies needs essential amino acids to build simple sugars. e. They help digest and break down protein-rich foods.

our bodies cannot manufacture them

Which component of the peanut butter ready-to-use-therapeutic food (RUTF) that Dr. Manary uses provides essential amino acids? a. milk powder b. peanut butter c. powered vitamins and minerals d. vegetable oil e. peanut butter and vegetable oil

peanut butter

The substrate of an enzyme is _____. a. an organic accessory molecule b. the molecule(s) released at the end of an enzyme-facilitated reaction c. the shape of the enzyme. d. one of the amino acids that makes up the enzyme e. what the enzyme acts on

the shape of an enzyme