11. Which of the following is the easiest way of finding out the nutritional status for large number of children in a short time?
[A] Studying their behaviour
[B] Studying their hair, face and eyes
[C] Measuring their height and weight
[D] All of the above
Show Answer
Correct Answer: C [Measuring their height and weight]
Notes:
The nutritional status of a large number of children can be calculated by knowing their body mass index .It is a physical measurement used to assess total amount of body fat. It is calculated by dividing your weight in kilograms (kg) by the square of your height in metres (m2). Depending on the BMI value calculated, one may be underweight, normal weight, overweight or obese.
12. Photosynthesis generally occurs in which portions of the plant?
[A] Leaf and other chloroplast bearing parts
[B] Steam and leaf
[C] Roots and chloroplast bearing parts
[D] Bark and leaf
Show Answer
Correct Answer: A [Leaf and other chloroplast bearing parts]
Notes:
Photosynthesis can take place in leaves, stem or green part of plant which containing chlorophyll.
13. Fat present below the skin surface in our body, acts as a barrier against which of the following losses?
[A] Loss of heat from the body
[B] loss of essential body fluids
[C] loss of salts from the body
[D] entry of harmful micro-organisms from the environment
Show Answer
Correct Answer: A [Loss of heat from the body]
Notes:
Adipose tissue that’s fat cells which are under the skin act as barrier to loss of the heat from the body and it protects the skin from entering of highly reactive UV rays of the sun. Fat present below the skin surface in our body, act as an insulator against loss of heat from the body. The deposited fat works as barrier, which prevents loss of heat.
14. Which vitamin is also called as retinol?
[A] Vitamin A
[B] Vitamin C
[C] Vitamin D
[D] Vitamin K
Show Answer
Correct Answer: A [Vitamin A]
Notes:
Vitamin A is also called as retinol deficiency of which results in xeropthalmia. Chemical formula for Vitamin A is C20H30O.
15. How many chromosomes are present in human beings?
[A] 44
[B] 46
[C] 48
[D] 42
Show Answer
Correct Answer: B [46]
Notes:
Human beings have 46 chromosomes in their cells. 22 pairs of autosomes and 2 special chromosomes called sex chromosomes are present.
16. The branch of science that deals with the study of the mental faculties of the brain including emotions is known as__?
[A] Phenology
[B] Phycology
[C] Phrenology
[D] Proctology
Show Answer
Correct Answer: C [Phrenology]
Notes:
The branch of science that deals with the study of the mental faculties of the brain including emotions is known as Phrenology.
17. Chromosome Theory of Inheritance was proposed by __?
[A] Pier Antonio Micheli
[B] Louis Pasteur
[C] Stephen Hales
[D] Thomas Hunt Morgan
Show Answer
Correct Answer: D [Thomas Hunt Morgan]
Notes:
The chromosomal theory of inheritance, or the idea that genes are located on chromosomes, was proposed based on the experiments of Thomas Hunt Morgan.
18.
Who among the following is considered to be the father of Comparative Anatomy?
[A] Georges Cuvier
[B] Stephen Hales
[C] Hugo de Vries
[D] Edwin John Butler
Show Answer
Correct Answer: A [Georges Cuvier]
Notes:
Georges Cuvier is considered to be the father of Comparative Anatomy.
19. Which of the following can occur during genetic recombination during prokaryotes?
[A] Transformation
[B] Transduction
[C] Conjugation
[D] All of these
Show Answer
Correct Answer: D [All of these]
Notes:
Prokaryotes are organisms whose cells lack a nucleus and other organelles.
20. Which one of the following is an example of a phospholipid?
[A] Steroid
[B] Cholesterol
[C] Lecithin
[D] Sterol
Show Answer
Correct Answer: C [Lecithin]
Notes:
Lecithin is a mixture of brown and yellow colored phospholipids that contain glycerol. It also acts as an emulsifier in many types of food.
