31. Which of the following conveys the longest-lasting immunity to an infectious agent?
[A] Active immunity
[B] Passive immunity
[C] Both 1 and 2
[D] None of the above
Show Answer
Correct Answer: A [Active immunity]
Notes:
Active immunity conveys the longest-lasting immunity to an infectious agent. Active immunity results when exposure to a disease organism activates the immune system to produce antibodies against that disease.
32. Which gland is also known as the “third eye”?
[A] Adrenal glands
[B] Gonads
[C] Pineal gland
[D] None of these
Show Answer
Correct Answer: C [Pineal gland]
Notes:
The pineal gland is also known as the “third eye”. It is located between the two halves of the brain.
33. Which of the following is the place of development of the embryo?
[A] Uterus
[B] Fallopian tubes
[C] A pair of ovaries
[D] Vagina
Show Answer
Correct Answer: A [Uterus]
Notes:
The uterus is the place of development of the embryo. This is a hollow muscular organ located in the female pelvis between the bladder and rectum.
34. The male accessory glands generate fluid that nourishes the sperm called __
[A] semen
[B] seminal plasma
[C] spermatogonia
[D] testosterone
Show Answer
Correct Answer: B [seminal plasma]
Notes:
The male accessory glands generate fluid that nourishes the sperm called seminal plasma and is rich in fructose, calcium, and certain enzymes.
35. The earliest recorded pandemic – the Black Death was speculated to be __
[A] Plague
[B] Rabies
[C] Leprosy
[D] None of the above
Show Answer
Correct Answer: A [Plague]
Notes:
The earliest recorded pandemic – the Black Death – was thought to be a plague.
36. Who was the father of the green revolution?
[A] Verghese Kurien
[B] Herbert Boyer
[C] Har Gobind Korana
[D] Norman Borlaug
Show Answer
Correct Answer: D [Norman Borlaug]
Notes:
Norman Borlaug was the father of the green revolution.
37. The right pulmonary artery is _____:
[A] Longer than the left
[B] Shorter than the left
[C] Wider than the left
[D] Of same size as the left
Show Answer
Correct Answer: A [Longer than the left]
Notes:
The right pulmonary artery is longer and larger and runs horizontally outward in front of right main bronchus and behind the superior vena cava, to the base of the right lung where it divides in two branches. The left pulmonary artery is shorter and runs horizontally over the left upper division bronchus, to the base of the left hilum where it divides into two branches.
38. Which of the following brings back deoxygenated blood from different parts of human body to heart?
[A] Veins
[B] Arteries
[C] Nerves
[D] Lungs
Show Answer
Correct Answer: A [Veins]
Notes:
Veins carry the deoxygenated blood from different parts of the body to the heart. There are two main veins that carry out this job. The superior vena cava carries deoxygenated blood from head, neck, thorax and hands to the right atrium of our heart. The inferior vena cava carries deoxygenated blood from legs, pelvic region and abdominal organs to the right atrium of our heart. Among the veins, only pulmonary vein carries oxygenated blood.
39. The edible part of an onion is ____:
[A] Fleshy leaves
[B] Aerial stem
[C] Modified root
[D] Aerial flower
Show Answer
Correct Answer: A [Fleshy leaves]
Notes:
The edible portion in an onion is swollen leaves with a bit of stem. They are bulbs which, like garlic and leeks, are modified stems in which the primary storage tissue is expanded leaf bases. They come in white, yellow, and red varieties. The swollen leaves have sugar as stored food in them.
40. BCG is vaccine meant for protection against which of the following diseases?
[A] Tuberculosis
[B] Mumps
[C] Tetanus
[D] Leprosy
Show Answer
Correct Answer: A [Tuberculosis]
Notes:
Bacillus Calmette–Guérin (BCG) vaccine is a vaccine primarily used against tuberculosis. The vaccine was originally developed from Mycobacterium bovis which is commonly found in cows. It is on the World Health Organization’s List of Essential Medicines, the most effective and safe medicines needed in a health system.
