31. Which of the following epidermal layer is not found in thin skin?
[A] Stratum Corneum
[B] Stratum lucidum
[C] Stratum spinosum
[D] Stratum granulosum
Show Answer
Correct Answer: B [Stratum lucidum]
Notes:
The stratum lucidum is 2–3 cell layers, present in the thick skin found on the palms and soles, a thin clear layer containing alydin which is a transformation product of keratohyalin.
32. Langerhans cells are present in which of the following?
[A] Stratum Spinosum
[B] Stratum Basale
[C] Stratum Granulosum
[D] Stratum Corneum
Show Answer
Correct Answer: A [Stratum Spinosum]
Notes:
Langerhans cells are present in the Stratum Spinosum. Stratum Spinosum has 8-10 layers of many-sided keratinocytes which are closely packed.
33. Which bone protects the brain?
[A] Calcium
[B] The cranium
[C] The cerebrum
[D] The cerebellum
Show Answer
Correct Answer: B [The cranium]
Notes:
The cranium, or skull, protects the delicate brain from damage. Unless the cerebrum is damaged, the ability to speak, see and remember should remain mostly intact.
34. Which of the following is present in the oral cavity or buccal cavity?
[A] teeth
[B] tongue
[C] salivary glands
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Teeth, tongue, and salivary glands are present in the oral cavity or buccal cavity.
35. Albumin is the most important protein in blood serum. It is produced by which of the following organs?
[A] Heart
[B] Lungs
[C] Liver
[D] Endocrine glands
Show Answer
Correct Answer: C [Liver]
Notes:
Albumin is the most important protein in blood serum. It is produced by Liver.
36. Which of the following hormone are surges that trigger ovulation?
[A] Estrogen
[B] LH
[C] FSH
[D] Progesterone
Show Answer
Correct Answer: B [LH]
Notes:
LH hormones are surges that trigger ovulation. It is released by the anterior pituitary.
37. Chickenpox is a highly contagious disease caused by the __
[A] Pasteurella pestis
[B] Bacillus anthracis
[C] Bordetella pertussis
[D] Varicella zoster
Show Answer
Correct Answer: D [Varicella zoster ]
Notes:
Chickenpox is a highly contagious disease caused by the varicella zoster virus.
38. Who led the Green Revolution in India?
[A] Verghese Kurien
[B] M.S. Swaminathan
[C] M.K. Gandhi
[D] Norman Borlaug
Show Answer
Correct Answer: B [M.S. Swaminathan ]
Notes:
M.S. Swaminathan led the Green Revolution in India. It was a part of the Green Revolution led by Norman Borlaug, it focused on increasing agricultural yields, especially in the states of Haryana, Punjab, and Uttar Pradesh.
39. What may complicate the process of gene cloning within the cell?
[A] One recognition site
[B] Foreign DNA
[C] More than one recognition site
[D] Antibody
Show Answer
Correct Answer: C [More than one recognition site]
Notes:
The recognition site is the sequence of DNA where the DNA is cleaved. The presence of more than one recognition site can result in multiple cuts within the DNA leading to DNA fragmentation. This would complicate the process of gene cloning.
40. The molecule which dissolves in water is called __
[A] hydrophilic molecule
[B] hydrophobic molecule
[C] soluble molecule
[D] insoluble molecule
Show Answer
Correct Answer: A [hydrophilic molecule]
Notes:
A molecule whose interaction with water and other polar substances is more thermodynamically favorable than their interaction with oil or other hydrophobic solvents is called a hydrophilic molecule.
