31. What is another name for the third ventricle of the brain?
[A] diocoel
[B] paracoel
[C] rhinocoel
[D] metacoel
Show Answer
Correct Answer: A [diocoel]
Notes:
It is also known as Paracol. The third ventricle of the brain is present in the diencephalon of the forebrain region between the right and left thalamus, hence it is also called the dichoel.
32. Myopia and hypermetropia can be corrected by __
[A] Concave and a plano-convex lens
[B] Concave and convex lens
[C] Convex and concave lens
[D] Plano-concave lens for both defects
Show Answer
Correct Answer: B [Concave and convex lens]
Notes:
Myopia and hypermetropia can be corrected by Concave and convex lens respectively.
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. Which of the following is a fat-soluble hormone?
[A] Amine hormone
[B] Peptide hormone
[C] Thyroid hormone
[D] Protein hormone
Show Answer
Correct Answer: C [Thyroid hormone]
Notes:
The thyroid is a lipid-soluble hormone whereas amine, peptide, and protein hormones are water-soluble, ranging in size from 3 to more than 200 amino acids.
35. Which gland is located between the two halves of the brain?
[A] Pineal gland
[B] Gonads
[C] Pancreas
[D] Parathyroid glands
Show Answer
Correct Answer: A [Pineal gland]
Notes:
The pineal gland is located between the two halves of the brain.
36. The conversion of N2 to ammonia is known as __
[A] Nitrification
[B] Nitrogen fixation
[C] Ammonification
[D] Denitrification
Show Answer
Correct Answer: B [Nitrogen fixation]
Notes:
The conversion of N2 to ammonia is known as Nitrogen fixation.
37. What does Insulin do?
[A] Increases blood sugar
[B] Decreases blood sugar
[C] Constricts blood vessels
[D] Stimulates lactation
Show Answer
Correct Answer: B [Decreases blood sugar]
Notes:
Insulin is central to regulating carbohydrate and fat metabolism in the body. It stops the use of fat as an energy source by inhibiting the release of glucagon. It removes excess glucose from the blood, which otherwise would be toxic. Insulin helps blood sugar enter the body’s cells so it can be used for energy. Insulin also signals the liver to store blood sugar for later use. Blood sugar enters cells, and levels in the bloodstream decrease, signaling insulin to decrease too.
38. What are the folds found in the mucous lining of the empty stomach?
[A] Typhlosole
[B] Areolae
[C] Rugae
[D] Villi
Show Answer
Correct Answer: C [Rugae]
Notes:
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
39. Penicillin is extracted from ____:
[A] Yeast
[B] Lichen
[C] Algae
[D] Fungus
Show Answer
Correct Answer: D [Fungus ]
Notes:
Penicillin the so called ‘Wonder drug’ discovered by Alexander Fleming in 1927 is produced from the genus of fungi “Penicillia”. All penicillin are â-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Grampositive organisms.
40. The total number of living organisms, both plants and animals, in a given area is called ____:
[A] Buffers
[B] Biomass
[C] Batholith
[D] Barrage
Show Answer
Correct Answer: B [Biomass]
Notes:
A biomass is total quantity of weight of the planet that can be classified according to the plants and animals that live in it. Temperature, soil, and the amount of light and water help determine what life exists in a biome.
