BIOL 203
BIOL 203 Final Exam Study Guide Questions
with Verified Answers 2025
Instructions for making proteins are coded in a cell's ________.
a. golgi apparatus
b. plasma membrane
c. ribosomes
d. DNA -Correct Answer ✔d. DNA
When combined, which of the following groups of foods forms a complementary
protein dish?
a. Cranberries, apples, and marshmallows
b. Kidney beans, rice, and sesame seeds
c. Peaches, bananas, and apricots
d. Iceberg lettuce, carrots, and tomatoes -Correct Answer ✔b. Kidney beans, rice,
and sesame seeds
Which of the following foods is a poor source of essential amino acids?
a. Fat-free milk
b. Peanuts
c. Sesame seeds
d. Apple -Correct Answer ✔d. Apple
A scientist isolates a water-soluble compound from spider venom. The substance
has nitrogen, carbon, hydrogen, and oxygen in its chemical structure. Based on this
information, the compound is probably a ________.
a. mineral salt
b. triglyceride
c. polysaccharide
d. protein -Correct Answer ✔d. protein
Which of the following foods are legumes?
a. Potatoes
BIOL 203
,BIOL 203
b. Onions
c. Mushrooms
d. Peanuts -Correct Answer ✔d. Peanuts
A person suffering from celiac disease must avoid ________.
a. eating foods that contain phenylalanine
b. lying down after meals
c. taking dietary supplements that contain homocysteine
d. consuming foods that contain gluten -Correct Answer ✔d. consuming foods that
contain gluten
Bernard has been suffering from a viral infection for over a week. As a result of the
illness, he has a fever and has lost his appetite. Based on this information, his body
is in ____ nitrogen balance.
a. deactivated
b. facilitated
c. positive
d. negative -Correct Answer ✔d. negative
Roberta is 25 years of age, healthy, and pregnant. Based on this information, her
body is in ____ nitrogen balance.
a. negative
b. positive
c. inverse
d. activated -Correct Answer ✔b. positive
Proteins ________.
a. are comprised of amino acids
b. have phosphorus in their chemical structures
c. provide 7 kcal/g
d. are stored as glycogen in the body -Correct Answer ✔a. are comprised of amino
acids
Which of the following foods is naturally a good source of high-quality protein?
BIOL 203
,BIOL 203
a. Red grapes
b. Corn oil margarine
c. Tuna fish
d. Leaf lettuce -Correct Answer ✔c. Tuna fish
_____ is the process that changes the normal shape of a protein and, as a result, the
molecule loses its usual functions.
a. Filtration
b. Hydrogenation
c. Denaturation
d. Protonation -Correct Answer ✔c. Denaturation
Beatrice is a vegan. Which of the following foods does she eat to supply her diet
with protein?
a. Eggs
b. Cheese
c. Butter
d. Legumes -Correct Answer ✔d. Legumes
Compared to a triglyceride molecule, a protein molecule ________.
a. is comprised of glucose units
b. has three fatty acids attached to glycerol
c. provides more energy
d. has nitrogen in its chemical structure -Correct Answer ✔d. has nitrogen in its
chemical structure
Which of the following foods is a good dietary source of beta-carotene?
a. Hamburger
b. Broccoli
c. Salmon
d. Bread -Correct Answer ✔b. Broccoli
______ prevent or limit the ability of free radicals to damage polyunsaturated fatty
acids and DNA in cells.
BIOL 203
, BIOL 203
a. Antidotes
b. Phosphates
c. Oxidizing agents
d. Antioxidants -Correct Answer ✔d. Antioxidants
The human body can absorb some _____ that is synthesized by intestinal bacteria.
a. riboflavin
b. biotin
c. beta-carotene
d. vitamin C -Correct Answer ✔b. biotin
In the body, vitamin A helps _________.
a. the small intestine absorb calcium and phosphorus
b. insulin enter cells
c. maintain epithelial cells
d. reduce collagen synthesis -Correct Answer ✔c. maintain epithelial cells
Which of the following vitamins can be made by the human body?
a. Thiamin
b. C
c. D
d. B-12 -Correct Answer ✔c. D
The classic signs and symptoms of pellagra include _________.
a. edema
b. diarrhea
c. dry cough
d. night blindness -Correct Answer ✔b. diarrhea
_____ results from lack of intrinsic factor.
a. Pernicious anemia
b. Osteomalacia
c. Pellagra
d. Cystic fibrosis -Correct Answer ✔a. Pernicious anemia
BIOL 203
BIOL 203 Final Exam Study Guide Questions
with Verified Answers 2025
Instructions for making proteins are coded in a cell's ________.
a. golgi apparatus
b. plasma membrane
c. ribosomes
d. DNA -Correct Answer ✔d. DNA
When combined, which of the following groups of foods forms a complementary
protein dish?
a. Cranberries, apples, and marshmallows
b. Kidney beans, rice, and sesame seeds
c. Peaches, bananas, and apricots
d. Iceberg lettuce, carrots, and tomatoes -Correct Answer ✔b. Kidney beans, rice,
and sesame seeds
Which of the following foods is a poor source of essential amino acids?
a. Fat-free milk
b. Peanuts
c. Sesame seeds
d. Apple -Correct Answer ✔d. Apple
A scientist isolates a water-soluble compound from spider venom. The substance
has nitrogen, carbon, hydrogen, and oxygen in its chemical structure. Based on this
information, the compound is probably a ________.
a. mineral salt
b. triglyceride
c. polysaccharide
d. protein -Correct Answer ✔d. protein
Which of the following foods are legumes?
a. Potatoes
BIOL 203
,BIOL 203
b. Onions
c. Mushrooms
d. Peanuts -Correct Answer ✔d. Peanuts
A person suffering from celiac disease must avoid ________.
a. eating foods that contain phenylalanine
b. lying down after meals
c. taking dietary supplements that contain homocysteine
d. consuming foods that contain gluten -Correct Answer ✔d. consuming foods that
contain gluten
Bernard has been suffering from a viral infection for over a week. As a result of the
illness, he has a fever and has lost his appetite. Based on this information, his body
is in ____ nitrogen balance.
a. deactivated
b. facilitated
c. positive
d. negative -Correct Answer ✔d. negative
Roberta is 25 years of age, healthy, and pregnant. Based on this information, her
body is in ____ nitrogen balance.
a. negative
b. positive
c. inverse
d. activated -Correct Answer ✔b. positive
Proteins ________.
a. are comprised of amino acids
b. have phosphorus in their chemical structures
c. provide 7 kcal/g
d. are stored as glycogen in the body -Correct Answer ✔a. are comprised of amino
acids
Which of the following foods is naturally a good source of high-quality protein?
BIOL 203
,BIOL 203
a. Red grapes
b. Corn oil margarine
c. Tuna fish
d. Leaf lettuce -Correct Answer ✔c. Tuna fish
_____ is the process that changes the normal shape of a protein and, as a result, the
molecule loses its usual functions.
a. Filtration
b. Hydrogenation
c. Denaturation
d. Protonation -Correct Answer ✔c. Denaturation
Beatrice is a vegan. Which of the following foods does she eat to supply her diet
with protein?
a. Eggs
b. Cheese
c. Butter
d. Legumes -Correct Answer ✔d. Legumes
Compared to a triglyceride molecule, a protein molecule ________.
a. is comprised of glucose units
b. has three fatty acids attached to glycerol
c. provides more energy
d. has nitrogen in its chemical structure -Correct Answer ✔d. has nitrogen in its
chemical structure
Which of the following foods is a good dietary source of beta-carotene?
a. Hamburger
b. Broccoli
c. Salmon
d. Bread -Correct Answer ✔b. Broccoli
______ prevent or limit the ability of free radicals to damage polyunsaturated fatty
acids and DNA in cells.
BIOL 203
, BIOL 203
a. Antidotes
b. Phosphates
c. Oxidizing agents
d. Antioxidants -Correct Answer ✔d. Antioxidants
The human body can absorb some _____ that is synthesized by intestinal bacteria.
a. riboflavin
b. biotin
c. beta-carotene
d. vitamin C -Correct Answer ✔b. biotin
In the body, vitamin A helps _________.
a. the small intestine absorb calcium and phosphorus
b. insulin enter cells
c. maintain epithelial cells
d. reduce collagen synthesis -Correct Answer ✔c. maintain epithelial cells
Which of the following vitamins can be made by the human body?
a. Thiamin
b. C
c. D
d. B-12 -Correct Answer ✔c. D
The classic signs and symptoms of pellagra include _________.
a. edema
b. diarrhea
c. dry cough
d. night blindness -Correct Answer ✔b. diarrhea
_____ results from lack of intrinsic factor.
a. Pernicious anemia
b. Osteomalacia
c. Pellagra
d. Cystic fibrosis -Correct Answer ✔a. Pernicious anemia
BIOL 203
