31. The auditory nerve carries:
[A] Smell information
[B] Taste information
[C] Balance information
[D] Sound information
Show Answer
Correct Answer: D [Sound information]
Notes:
The auditory nerve carries Sound information. The acoustic nerve is a sensory nerve essential for hearing. It is also called the cochlear nerve.
32. Urine is formed in the nephron and which of the following steps are involved?
[A] Glomerular Filtration
[B] Tubular Reabsorption
[C] Secretion
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Urine is formed in the nephron and Glomerular Filtration, Tubular Reabsorption, and Secretion steps are involved in it.
33. Salivary amylase is also known as __
[A] ptyalin
[B] trypsin
[C] lipase
[D] None of these
Show Answer
Correct Answer: A [ptyalin]
Notes:
Salivary amylase is also known as ptyalin. It breaks down starches into smaller, simpler sugars.
34. What is the scrotal ligament?
[A] an accessory reproductive gland in male mammals
[B] elastic tissue which connects the cauda epididymis to the scrotal sac
[C] remnant of gubernaculum in a fetus
[D] None of these
Show Answer
Correct Answer: C [remnant of gubernaculum in a fetus]
Notes:
A scrotal ligament is the remnant of the gubernaculum in a fetus. It secures the testis to the most inferior portion of the scrotum.
35. Which of the following diseases is not caused by the RNA virus?
[A] Yellow fever
[B] Smallpox
[C] Mumps
[D] German measles
Show Answer
Correct Answer: B [Smallpox]
Notes:
Yellow fever, Mumps, and German measles are caused by the RNA virus. Whereas Smallpox is caused by the DNA virus.
36. An individual’s collection of genes is called?
[A] Genotype
[B] Phenotype
[C] Trait
[D] None of the above
Show Answer
Correct Answer: A [Genotype]
Notes:
A genotype is a collection of genes of an individual. The term can also refer to two alleles inherited for a particular gene. The genotype is expressed when the information encoded in the gene’s DNA is used to make proteins and RNA molecules.
37. Which of the following is an important objective of biotechnology in the field of agriculture?
[A] to decrease seed number
[B] to produce pest-resistant varieties of plants
[C] to increase phosphorous, nitrogen production
[D] to reduce the number of plants
Show Answer
Correct Answer: B [to produce pest-resistant varieties of plants]
Notes:
An important objective of biotechnology in the field of agriculture is to produce pest-resistant varieties of plants.
38. In coriander, the useful parts are
____:
[A] Leaves & flowers
[B] Flowers & dried fruits
[C] Roots & leaves
[D] Leaves & dried fruits
Show Answer
Correct Answer: D [Leaves & dried fruits]
Notes:
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking.
39. The elements known as primary nutrients for plants are ____:
[A] Nitrogen, Phosphorus and Potassium
[B] Potassium, Boron and Nitrogen
[C] Nitrogen, Oxygen and Silicon
[D] Nitrogen, Phosphorus and Iron
Show Answer
Correct Answer: A [Nitrogen, Phosphorus and Potassium]
Notes:
Nitrogen (N), Phosphorus (P) and Potassium (K) are considered as the three essential or primary nutrients for plants. Together they make up the trio known as ‘NPK’. Other important nutrients are Calcium, Magnesium and Sulphur.
40. Vitamin C is also known as _____:
[A] Tartaric acid
[B] Acetic acid
[C] Ascorbic acid
[D] Malic acid
Show Answer
Correct Answer: C [Ascorbic acid]
Notes:
Vitamin C is also known as ascorbic acid (C6H8O6). It is a water-soluble vitamin that occurs as a white or slightly yellow crystal or powder with a slight acidic taste. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone.
