Clinical Nutritionist CCN Trivia 3

Question 1

Which mineral is the most abundant in the human body by mass?

Accepted Answer

Calcium

Answer

Calcium makes up roughly 99% of bone mineral and accounts for about 1–2% of total adult body weight, making it the most abundant mineral.

Question 2

In nutritional biochemistry, 'beta-oxidation' refers to the metabolic pathway that breaks down which type of molecule?

Accepted Answer

Fatty acids

Answer

Beta-oxidation sequentially cleaves two-carbon acetyl-CoA units from fatty acid chains in the mitochondria to generate ATP.

Question 3

Which water-soluble vitamin acts as an antioxidant and is essential for collagen synthesis?

Accepted Answer

Vitamin C

Answer

Vitamin C (ascorbic acid) donates electrons to free radicals and is required for hydroxylation reactions that stabilize collagen's triple helix.

Question 4

A CCN working with a client notices macrocytic anemia and elevated homocysteine. Which two nutrients are most likely deficient?

Accepted Answer

Vitamin B12 and folate

Answer

Both vitamin B12 and folate are required for DNA synthesis (causing macrocytic anemia) and for remethylating homocysteine to methionine.

Question 5

Which fatty acid classification describes EPA and DHA, found abundantly in fatty fish?

Accepted Answer

Omega-3 polyunsaturated

Answer

EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are long-chain omega-3 polyunsaturated fatty acids with the first double bond at the third carbon.

Clinical Nutritionist CCN Practice Test

Clinical Nutritionist CCN Practice Test

Clinical Nutritionist CCN Trivia 3