31. In mammals, few vertebrae join to form?
[A] Humerus
[B] Femur
[C] Synsacrum
[D] Atlas
Show Answer
Correct Answer: C [Synsacrum]
Notes:
In mammals, few vertebrae join to form Synsacrum. The synsacrum is a skeletal structure of birds and other dinosaurs.
32. Finger bones are also known as __?
[A] Hamate bone
[B] Girdles
[C] Phalanges
[D] Metacarpal
Show Answer
Correct Answer: C [Phalanges]
Notes:
The phalanges of the hands are the tubular bones of the fingers and thumb.
33. What happens in a disorder like nephritis?
[A] formation of angiotensin which leads to hypertension
[B] unable to secrete optimum quantities of hydrogen ions
[C] inflammation of the kidney
[D] decrease in the glomerular filtration in humans
Show Answer
Correct Answer: C [inflammation of the kidney]
Notes:
Nephritis is usually an inflammation of the kidney. Glomerulonephritis is characterized by inflammation in the glomeruli of the kidney. In this case, the glomeruli are completely filled with blood. If multiple glomeruli become non-functional, the patient needs an artificial kidney.
34. A series of wave-like muscle contractions that move food through the digestive tract called __
[A] Abduction movement
[B] Peristaltic movement
[C] Adduction movement
[D] Protraction movement
Show Answer
Correct Answer: B [Peristaltic movement]
Notes:
A series of wave-like muscle contractions that move food through the digestive tract is called Peristaltic movement.
35. Which is the Growth hormone inhibiting hormone?
[A] FSH
[B] TRH
[C] GHRH
[D] Somatostatin
Show Answer
Correct Answer: D [Somatostatin]
Notes:
Somatostatin works against Growth Hormone (GHRH), hence it is known as Growth Inhibiting Hormone. It consists of two peptides of 14 and 28 amino acids and is released from neurosecretory nerves.
36. A process in which earthworms convert organic waste into manure rich in high nutritional content is called
[A] Farmyard manure
[B] Bio Compost
[C] Vermicomposting
[D] Green manure
Show Answer
Correct Answer: C [Vermicomposting]
Notes:
A process in which earthworms convert organic waste into manure rich in high nutritional content is called Vermicomposting.
37. The type of kidneys present in frog are ___:
[A] Metanephros
[B] Pronephros
[C] Archinephros
[D] Mesonephros
Show Answer
Correct Answer: D [Mesonephros]
Notes:
In the frog, Mesonephros is the functional kidney in embryonic as well as adult stage and mesonephric duct functions as both urinary and genital duct. Tubules of the anterior region of kidney get connected to testis to collect spermatozoa, while the posterior region remains as functional kidney and transports urinary wastes to the exterior.
38. 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.
39. Which of the following microorganisms is used in milk curdling?
[A] Bacillus
[B] Lactobacillus
[C] Leuconostoc
[D] Acetobacter
Show Answer
Correct Answer: B [Lactobacillus]
Notes:
Lactobacillus acidiphilous is used in milk curdling by producing lactic acid and reducing the pH of the milk. These bacteria convert the lactose into lactic acid, which imparts the sour taste to curd. It is a genus of Gram positive facultative anaerobic or microaerophilic rod-shaped bacteria.
40. Scurvy is caused by deficiency of which vitamin?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin D
Show Answer
Correct Answer: C [Vitamin C]
Notes:
Vitamin C or ascorbic acid is an essential dietary nutrient. Scurvy is caused by the deficiency of Vitamin C. Citrus Fruits are the best source of Vitamin C. After several months of deficiency, a range of symptoms and signs can occur, including anemia, myalgia, bone pain, easy bruising, swelling, petechiae, gum disease, poor wound healing, and depression. Late stages of scurvy are life threatening.
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