Question

1. vitamin b complex encompasses all of the following vitamins except

a) riboflavin
b) ascorbic acid
c) thiamin
d) cobalamin

1. all of the following are true about vitamins except

a) they are organic molecules found in animal and plant tissues
b) some are produced in a laboratory
c) they are inorganic chemicals important to a balanced diet
d) some can be synthesized in the body

1. which of the following substances are depleted in the body faster because of limited storage capability, making toxicity less likely? choose the best answer.

a) water-soluble vitamins
b) fat-soluble vitamins
c) amino acids
d) microminerals

1. generally we do not want to give vitamin and mineral supplements to dogs and cats, but vitamin c supplements must be given to prevent hypovitaminosis c (scurvy) in which of the following species?

a) rabbit
b) horse
c) guinea pig
d) ferret

1. vitamin d and phosphorus are typically deficient or imbalanced simultaneously with which of the following vitamins or minerals

a) vitamin a
b) thiamin
c) calcium
d) selenium

1. most water soluble vitamins are typically supplemented in pet food by the manufacturers to account for losses during processing and storage.

a) true
b) false

1. what glycoprotein is found in raw egg whites and binds to biotin making it unavailable?

a) avidin
b) avian
c) argon
d) anion

1. ascorbic acid is not an essential vitamin for dogs and cats because they produce it by metabolizing glucose, but it is essential for other mammals including guinea pigs.

a) true
b) false

1. all of the following affect how much vitamin d an animal requires daily except:

a) gender and breed
b) environmental conditions
c) stage of development
d) dietary concentrations of iodine

1. vitamin e and selenium, even though they are different types of nutrients, are both antioxidants that are frequently added to pet foods as a preservative.

a) true
b) false

Explanation:

1. Vitamin B Complex includes riboflavin (B2), thiamin (B1), cobalamin (B12); ascorbic acid is vitamin C (not B).
2. Vitamins are organic, not inorganic; options a, b, d are true.
3. Water-soluble vitamins have limited storage, so they deplete faster, reducing toxicity risk.
4. Guinea pigs cannot synthesize vitamin C, requiring supplementation to prevent scurvy.
5. Vitamin D, phosphorus, and calcium work together for bone health, so deficiencies co-occur.
6. Water-soluble vitamins degrade during processing/storage, so manufacturers supplement them.
7. Avidin in raw egg whites binds biotin, making it unavailable.
8. Dogs/cats make vitamin C from glucose; guinea pigs cannot, so it’s essential for them.
9. Iodine is unrelated to vitamin D requirements; gender/breed, environment, development stage affect it.
10. Vitamin E (vitamin) and selenium (mineral) are both antioxidants added to pet food.

Answer:

1. b) Ascorbic Acid
2. c) They are inorganic chemicals important to a balanced diet
3. a) Water-soluble vitamins
4. c) Guinea Pig
5. c) Calcium
6. a) True
7. a) Avidin
8. a) True
9. d) Dietary concentrations of Iodine
10. a) True