Nokea
How many pairs of salivary glands produce saliva, which contains amylase to start digestion of dietary starch?
- A. Two
- B. Three
- C. Four
- D. Five
Correct Answer: B
Rationale: Humans have three pairs of salivary glands (parotid, submandibular, sublingual) that produce saliva containing amylase; not five as originally asserted.
You may also like to solve these questions
In pancreas, pancreatic juice and hormone are secreted by-
- A. Same cells
- B. Different Cells
- C. Same cells at different times
- D. None of these.
Correct Answer: B
Rationale: Pancreatic juice (exocrine) is secreted by acinar cells, while hormones (endocrine) are secreted by Islets of Langerhans.
What is an example of assimilation?
- A. absorption of glycerol into lacteals
- B. breakdown of alcohol in the liver
- C. building of proteins from amino acids
- D. release of a hormone from a gland
Correct Answer: C
Rationale: Assimilation involves using absorbed nutrients to synthesize cellular components; building proteins from amino acids is a prime example.
Nutrients like calcium and zinc are often referred to as
- A. proteins
- B. minerals
- C. fats
- D. vitamins
Correct Answer: B
Rationale: Calcium and zinc are classified as minerals, essential inorganic nutrients.
The large intestine lacks:
- A. goblet cells
- B. epiploic appendages
- C. plicae circulares
- D. haustra
Correct Answer: C
Rationale: The large intestine lacks plicae circulares, which are present in the small intestine to increase surface area.
Isthmus of fundic [gastric] gland contain the following except:
- A. Surface epithelial cells
- B. Parietal cells
- C. Chief cells.
- D. Stem cells
Correct Answer: C
Rationale: The isthmus contains stem cells, surface epithelial cells, and parietal cells, but chief cells are found deeper in the gland body and base.