31. 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.
32. Conductive hearing loss can be caused by__
[A] Ear infections
[B] Loss of the small hairs in the cochlear
Loss of the small hairs in the cochlear
[C] Nerve damage
[D] Loud noise
Show Answer
Correct Answer: A [Ear infections]
Notes:
There are three types of hearing loss: conductive, sensorineural, or a combination of both.
Conductive hearing loss is caused by a buildup of wax in the outer ear or middle ear, scarring of the eardrum after repeated middle ear infections, or destruction of the small bones in the ear.
33. They contain long loops of Henle and extend to the medulla:
[A] Renal Corpuscle
[B] Cortical nephron
[C] Juxtamedullary nephron
[D] Henle’s Loop
Show Answer
Correct Answer: C [Juxtamedullary nephron]
Notes:
Juxtamedullary nephron contains long loops of Henle and extends to the medulla.
34. Which of the following vitamins is stored in the liver?
[A] Vitamin K
[B] Vitamin D
[C] Vitamin E
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Vitamin K, D, and E are stored in the liver. The liver is the chemical “factory” of the body.
35. Which female organ serves as the birth canal to allow the delivery of the fetus during labor?
[A] Ovaries
[B] Uterus
[C] Fallopian Tubes
[D] Vagina
Show Answer
Correct Answer: D [Vagina]
Notes:
The vagina is a female reproductive organ that serves as the birth canal to allow the delivery of the fetus during labor.
36. The outermost layer of the ovary is made up of ___.
[A] simple cuboidal cells
[B] stereocilia
[C] stroma
[D] cilia
Show Answer
Correct Answer: A [simple cuboidal cells]
Notes:
Ovarian or germinal epithelium is the outermost layer of the ovary composed of simple cuboidal cells. It is actually a modified visceral peritoneum.
37. Which of the following hormone are surges that trigger ovulation?
[A] Estrogen
[B] LH
[C] FSH
[D] Progesterone
Show Answer
Correct Answer: B [LH]
Notes:
LH hormones are surges that trigger ovulation. It is released by the anterior pituitary.
38. Which of the following is the best fertilizer for paddy?
[A] Azolla pinnata
[B] Bacillus megatherium
[C] Rhizobium meliloti
[D] Bacillus polymyxa
Show Answer
Correct Answer: A [Azolla pinnata]
Notes:
Azolla pinnata is the best fertilizer for paddy. Azolla pinata is a species of fern that is known by several common names, including mosquito fern, winged mosquito fern, and water velvet.
39. Which of the following is an example of a loose association of nitrogen-fixing bacteria?
[A] Rhizobium
[B] Blue-Green algae
[C] Azotobacter
[D] Azospirillum
Show Answer
Correct Answer: D [Azospirillum]
Notes:
Azospirillum is an example of a loose association of nitrogen-fixing bacteria. Azotobacter is an example of Free-Living Nitrogen-Fixing Bacteria. Rhizobium is an example of Symbiotic Nitrogen-Fixing Bacteria. Blue-Green alga is an example of Symbiotic Nitrogen-Fixing Cyanobacteria.
40. What is the aerobic digestion of sewage used to produce?
[A] Biomass
[B] Biofuels
[C] Synthetic fuels
[D] Metal articles
Show Answer
Correct Answer: B [Biofuels]
Notes:
Aerobic digestion of sewage is used to produce biofuels. The fuel obtained from biomass is called biofuel.
