31. What is the phenomenon of light responsible for the functioning of the human eye?
[A] Reflection
[B] Refraction
[C] Power of accommodation
[D] Persistence of vision
Show Answer
Correct Answer: B [Refraction ]
Notes:
The phenomenon of light responsible for the functioning of the human eye is Refraction.
32. What part of the nephron is responsible for blood pressure-driven filtration?
[A] distal tubule
[B] loop of Henle
[C] glomerulus
[D] Urethra
Show Answer
Correct Answer: C [glomerulus]
Notes:
The glomerulus is a part of the nephron which is responsible for blood pressure-driven filtration.
33. What is the role of ADH in kidney function?
[A] It controls the amount of water absorption by the nephrons.
[B] It helps in excretion of toxic nitrogenous compounds.
[C] It regulates the amount of glucose processed and excreted by the kidneys.
[D] None of these
Show Answer
Correct Answer: A [It controls the amount of water absorption by the nephrons.]
Notes:
Antidiuretic Hormone (ADH) controls the amount of water absorption by the nephrons. It is also called arginine vasopressin.
34. Which is the smallest Endocrine gland?
[A] Pituitary gland
[B] Pineal gland
[C] Pineal gland
[D] Adrenal gland
Show Answer
Correct Answer: A [Pituitary gland]
Notes:
The pituitary gland is one of the smallest glands of the human body and it secretes the most number hormones in the body. It is also known as the master gland of the human body.
35. Where does the fertilization of the egg take place with the sperm?
[A] Ovaries
[B] Fallopian tubes
[C] Uterus
[D] Vagina
Show Answer
Correct Answer: B [Fallopian tubes]
Notes:
The fertilization of the egg with the sperm occurs in the fallopian tube.
36. Mastitis refers to which of the following?
[A] Inflammation of nephrons
[B] Inflammation of neurons
[C] Inflammation of Udders
[D] Inflammation of mast cells
Show Answer
Correct Answer: C [Inflammation of Udders]
Notes:
Mastitis refers to Inflammation of Udders. It is most often caused by infection with the Corynebacterium pyogenes bacterium in dry cows and pre-weaned heifers. Antibiotic treatment provides cure.
37. Which of the following is a Congenital Disease?
[A] Kwashiorkor
[B] Sickle-cell anemia
[C] Goitre
[D] Rheumatoid Arthritis
Show Answer
Correct Answer: B [Sickle-cell anemia]
Notes:
Sickle cell anemia is one of a group of hereditary disorders known as sickle cell diseases. It causes red blood cells to become misshapen and break down.
38. Which of the following is an important objective of biotechnology in the field of agriculture?
[A] to decrease seed number
[B] to produce pest-resistant varieties of plants
[C] to increase phosphorous, nitrogen production
[D] to reduce the number of plants
Show Answer
Correct Answer: B [to produce pest-resistant varieties of plants]
Notes:
An important objective of biotechnology in the field of agriculture is to produce pest-resistant varieties of plants.
39. An Antigen is ____:
[A] The result of Antibody
[B] The stimulus for Antibody formation
[C] The opposite of Antibody
[D] The residue of an Antibody
Show Answer
Correct Answer: B [The stimulus for Antibody formation]
Notes:
Antigens are defined as substances recognized by the body as foreign, causing the body to produce an antibody to react specifically with it. Antibodies are proteins produced by lymphocytes as a result of stimulation by an antigen which can then interact specifically with that particular antigen.
40. ____ is the branch of zoology concerned with the study of amphibians:
[A] Herpetology
[B] Ethology
[C] Mammology
[D] Morphology
Show Answer
Correct Answer: A [Herpetology]
Notes:
Herpetology is the branch of zoology concerned with the study of amphibians (including frogs, toads, salamanders, newts, and caecilians (gymnophiona)) and reptiles (including snakes, lizards, amphisbaena, turtles, terrapins, tortoises, crocodilians, and the tuataras). It is the study of ectothermic (coldblooded) tetrapods.
