BHS Nutrition and Dietetics 3

Question 1

Which enzyme initiates starch digestion in the mouth?

Accepted Answer

Salivary amylase

Answer

Salivary amylase (ptyalin) begins hydrolysis of dietary starch to shorter polysaccharides and maltose in the oral cavity.

Question 2

Pellagra, characterized by the '4 Ds' (dermatitis, diarrhea, dementia, death), results from a deficiency of which B vitamin?

Accepted Answer

Niacin (B3)

Answer

Pellagra is caused by niacin (B3) deficiency, often compounded by inadequate tryptophan, its dietary precursor.

Question 3

The Dietary Reference Intake (DRI) term that represents the average daily intake sufficient to meet the needs of half of all healthy individuals in a group is the:

Accepted Answer

Estimated Average Requirement (EAR)

Answer

The EAR is the median intake that meets the needs of 50% of healthy individuals and is used to set the RDA.

Question 4

A client with newly diagnosed celiac disease asks which grain they can safely consume. The dietitian should recommend:

Accepted Answer

Quinoa

Answer

Quinoa is a naturally gluten-free pseudocereal safe for individuals with celiac disease, unlike wheat, spelt, and barley.

Question 5

Which lipoprotein is primarily responsible for transporting dietary fat from the intestine to peripheral tissues?

Accepted Answer

Chylomicrons

Answer

Chylomicrons are assembled in intestinal enterocytes to transport dietary triglycerides and fat-soluble vitamins via the lymphatic system to peripheral tissues.

BHS - Bachelor of Health Science Practice Test

BHS - Bachelor of Health Science Practice Test

BHS Nutrition and Dietetics 3