31. Where is heparin derived from?
[A] intestines of pigs
[B] intestines of goats
[C] intestines of cows
[D] intestines of dogs
Show Answer
Correct Answer: A [intestines of pigs]
Notes:
Heparin comes from the intestines of pigs that are slaughtered for meat. Heparin is an important anticoagulant.
32. What is the purpose of cranial nerves in the human body?
[A] carry information from the brain to all parts of the body
[B] facilitate the sense of vision and smell
[C] muscle movement
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The cranial nerves carry information from the brain to all parts of the body. It facilitates the sense of sight, smell, muscle movement and hearing.
33. Neutrophils, basophils, lymphocytes, eosinophils, and monocytes are examples of __.
[A] Physical barrier
[B] Cellular barriers
[C] Cytokine barriers
[D] Physiological barriers
Show Answer
Correct Answer: B [Cellular barriers]
Notes:
Neutrophils, basophils, lymphocytes, eosinophils, and monocytes are examples of Cellular barriers.
34. Renin is released from juxtaglomerular (JG) cells when?
[A] blood flow in the glomerulus increases
[B] blood flow in the glomerulus decreases
[C] blood flow in the glomerulus remains neutral
[D] None of these
Show Answer
Correct Answer: B [blood flow in the glomerulus decreases]
Notes:
Renin is released from juxtaglomerular (JG) cells when blood flow in the glomerulus decreases.
35. What is the function of the Growth hormone?
[A] stimulates the lining of the uterus for fertilization
[B] stimulates the production and secretion of thyroid hormones
[C] stimulates contraction of uterus
[D] stimulates protein production
Show Answer
Correct Answer: D [stimulates protein production]
Notes:
Stimulates protein production is the function of the Growth hormone. Growth hormone is secreted by the Pituitary gland.
36. What are the symptoms of brucellosis in animals?
[A] arthritis in cows and pigs
[B] mastitis and lameness in goats
[C] oozing skin lesions in horses
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Arthritis in cows and pigs, mastitis and lameness in goats, and oozing skin lesions in horses are the symptoms of brucellosis in animals.
37. In which form does Plasmodium enter the human body?
[A] Phanerozoites
[B] Cryptozoites
[C] Gametocytes
[D] Sporozoites
Show Answer
Correct Answer: D [Sporozoites]
Notes:
In Sporozoites form of Plasmodium enter the human body through the bite of infected female Anopheles mosquitoes.
38. Which organism’s plasmid was first used to construct recombinant DNA?
[A] Cyanobacteria
[B] Bacillus subtilis
[C] Saccharomyces cerevisiae
[D] Salmonella typhimurium
Show Answer
Correct Answer: B [Bacillus subtilis]
Notes:
Bacillus subtilis organism’s plasmid was first used to construct recombinant DNA.
39. Blue-green algae are included in the group ____:
[A] Protozoa
[B] Eubacteria
[C] Fungi
[D] Cyanobacteria
Show Answer
Correct Answer: D [Cyanobacteria]
Notes:
Cyanobacteria, also known as blue green algae, are single-celled and belong to the family of Prokaryotes. That means, they do not have a well defined cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near-extinction of oxygen-intolerant organisms.
40. Which one of the following forms the base of vegetable fibres?
[A] Fats
[B] Oils
[C] Cellulose
[D] Proteins
Show Answer
Correct Answer: C [Cellulose]
Notes:
The principal chemical component of vegetable fibres is cellulose, with varying amounts of lignin and hemicelluloses also usually present; thus, the fibres are also referred to as cellulosic or lignocellulosic. Examples include cotton, hemp, jute, flax, ramie, sisal, bagasse, and banana. Vegetable fibres are usually stiffer but less tough than synthetic fibres.
