Human Physiology Interview Questions and Answers focuses on “Digestion and Absorption – Buccal Cavity, Alimentary Canal, Nutrition Types & Process”.
1. Crown of teeth is covered by __________
A. enamel
B. dentine
C. skin
D. sone
View Answer
Answer: A
Clarification: Crown of teeth is covered by enamel. It is the highly mineralized substance of the body.
2. Alimentary canal is absent in __________
A. Fasciola hepatica
B. Taenia solium
C. Ascaris suum
D. Ancylostoma caninum
View Answer
Answer: B
Clarification: Taenia solium is a pork tapeworm. It is a parasite causing disease. It lacks the alimentary canal.
3. How many teeth appear twice during the life span of an individual?
A. 16
B. 17
C. 20
D. 32
View Answer
Answer: C
Clarification: 20 teeth appear twice during the life span of an individual. The first set is called milk teeth and the second set is called permanent teeth.
4. The pH of saliva is?
A. 9.5
B. 8
C. 7.5
D. 6.8
View Answer
Answer: D
Clarification: The pH of saliva is 6.8.it is basic in nature. It has enzymes to digest carbohydrates.
5. Alimentary canal of herbivores differs from carnivore in having _________
A. Short alimentary canal
B. Long alimentary canal
C. Thin alimentary canal
D. Fat alimentary canal
Answer: B
Clarification: Herbivores as grass eating animals. To digest the cellulose present in it the herbivores have long alimentary canal comparing to carnivores.
6. Diastema is associated with _________
A. Absence of teeth
B. Organ of corti
C. Retinal cells
D. Presence of extra teeth
View Answer
Answer: A
Clarification: Diastema is associated with an absence of teeth. It is very common in human beings.
7. The involuntary muscular movement of alimentary canal is called _________
A. Amoeboid movement
B. Peristalsis movement
C. Smooth movement
D. All of the mentioned
Answer: B
Clarification: Peristalsis movement is an involuntary muscular movement. It occurs in esophagus, stomach and intestines.
8. Which of the following are the chisel shaped teeth use for biting?
A. Incisors
B. Canines
C. Molars
D. Pre molars
Answer: a
Clarification: Incisors are four in numbers in a human being. They are located in the premaxilla above and on the mandible below.
9. Which of the following does not release any enzyme?
A. Salivary glands
B. Esophagus
C. Stomach
D. Pancreas
View Answer
Answer: B
Clarification: Esophagus does not release any enzyme. It connects throat from stomach and food passes through it.
10. Which of the following vitamin is water soluble and antioxidant?
A. Vitamin B1
B. Vitamin A
C. Vitamin D
D. Vitamin C
View Answer
Answer: D
Clarification: Vitamin C is water soluble and antioxidant. The disease scurvy is prevented and treated using vitamin C rich supplements.
11. Enzymes, vitamins and hormones can be classified into single category on biological chemicals because they __________
A. enhance oxidative metabolisms
B. help in regulating metabolism
C. are conjugated proteins
D. are exclusively synthesized inside the body
Answer: B
Clarification: Enzymes, vitamins and hormones can be classified into single category on biological chemicals because of all of these help in regulating metabolism. They play a major role in the functioning of human body.
12. Microphagial nutrition occurs in __________
A. paramecium
B. insects
C. euglena
D. hydra
View Answer
Answer: A
Clarification: Microphagial nutrition occurs in Paramecium. Paramecium is a tiny unicellular organism found in water.
13. Kwashiorkor disease occurs due to deficiency of _____________
A. lipids
B. sugars
C. hormones
D. proteins
View Answer
Answer: D
Clarification: Kwashiorkor disease occurs due to a deficiency of proteins. It is a form of malnutrition.
14. Osteomalacia occurs due to deficiency of ___________
A. Vitamin D
B. Vitamin A
C. Vitamin B
D. Vitamin E
View Answer
Answer: A
Clarification: Osteomalacia is the softening of bones caused by impaired bone metabolism. It is caused due to inadequate levels of vitamin D calcium and phosphate.
15. Biotrophic nutrition is shown by ___________
A. humans
B. insectivorous plants
C. invertebrates
D. saprophytic plants
Answer: B
Clarification: Biotrophic pathogens derive nutrients from living cells by maintaining host viability. They don’t kill host plant rapidly.
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