31. What are muscles made of?
[A] silica
[B] polyester threads
[C] calcium and phosphorous
[D] groups of cells called fibers
Show Answer
Correct Answer: D [groups of cells called fibers]
Notes:
Muscles are made up of many cell fibers fused together. These fibers can stretch and contract, causing the body parts to move.
32. 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.
33. The lytic enzyme released y sperm is __.
[A] Ligase
[B] Acrosome
[C] Androgamone
[D] Hyaluronidase
Show Answer
Correct Answer: D [Hyaluronidase]
Notes:
y Sperm releasing lytic enzyme is Hyaluronidase. It catalyzes the degradation of hyaluronic acid.
34. The stroma of the ovary consists of blood vessels, nerves, muscle fibers, and a type of protein called?
[A] Fibrin
[B] Collagen
[C] Albumin
[D] Globulin
Show Answer
Correct Answer: B [Collagen]
Notes:
The stroma of the ovary contains blood vessels, nerves, muscle fibers, and a type of protein called collagen. Collagen is the main structural protein of various connective tissues in animals. These are secreted by fibroblast cells.
35. Which of the following is called the end part of the oviduct?
[A] isthmus
[B] ampulla
[C] ostium
[D] thalamus
Show Answer
Correct Answer: A [isthmus]
Notes:
Isthmus is called the end part of the oviduct. It is a narrow strip of land that connects two larger landmasses and separates two bodies of water.
36. 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.
37. What disease is caused by Corynebacterium?
[A] Whooping cough
[B] Tuberculosis
[C] Diphtheria
[D] Gonorrhoea
Show Answer
Correct Answer: C [Diphtheria]
Notes:
Diphtheria is a serious infection caused by strains of bacteria called Corynebacterium diphtheriae.
38. The main protein found in milk is ____:
[A] Globulin
[B] Globin
[C] Casein
[D] Albumin
Show Answer
Correct Answer: C [Casein]
Notes:
The major proteins in milk are casein and whey. These two milk proteins are both excellent sources of all the essential amino acids, but they differ in one important aspect—whey is a fast-digesting protein and casein is a slow-digesting protein. As a food source, casein supplies amino acids, carbohydrates, and the two inorganic elements calcium and phosphorus.
39. Which of the following increases the rate of heart beat?
[A] Peripheral nerves
[B] Parasympathetic nerves
[C] Sympathetic nerves
[D] Cranial nerves
Show Answer
Correct Answer: C [Sympathetic nerves]
Notes:
Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamine – epinephrine) to accelerate the heart rate. The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate.
40. Just born baby has the respiratory rate as ____:
[A] 15 times/minute
[B] 18 times/minute
[C] 26 times/minute
[D] 32 times/minute
Show Answer
Correct Answer: A [15 times/minute]
Notes:
New born babies and children normally breathe faster than older children and adults. Their respiratory rate is about 30-60 breaths per minute. The respiratory rate for the different age-categories of children is:-6-12 months: 24-30; 1-5 years: 20-30; 6-12 years: 12-20.
