1. Which among the following fishes does not have Central Nervous System?
[A] Dog Fish
[B] Cuttle Fish
[C] Jelly Fish
[D] Star Fish
Show Answer
Correct Answer: C [Jelly Fish]
Notes:
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the sub-phylum Medusozoa. Jellyfish do not have specialized systems for osmoregulation, respiration and circulation, and do not have a central nervous system.
2. Deficiency of Tocopherol leads to sterility in males and females. The popular word for Tocopherol is ___?
[A] Vitamin B3
[B] Vitamin K
[C] Vitamin D
[D] Vitamin E
Show Answer
Correct Answer: D [Vitamin E]
Notes:
Tocopherols are a class of organic chemical compounds, many of which have vitamin E activity. Deficiency of Tocopherol leads to sterility in males and females. Tocopherol exists in four different forms designated as α, β, δ, and γ.
3. Which among the following in Human Heart is / are responsible for contractions that send the blood through the circulation?
[A] Left Atrium
[B] Both Atria
[C] Right Ventricle
[D] Both Ventricles
Show Answer
Correct Answer: D [Both Ventricles]
Notes:
Each half of the heart has two chambers: an atrium, and a lower chamber called the ventricle. The function of the ventricles is to pump blood into systemic and pulmonary circulations.
4. Which among the following vitamins is involved in the breakdown of energy molecules such as glucose?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin D
Show Answer
Correct Answer: B [Vitamin B]
Notes:
Vitamin B is involved in the breakdown of energy molecules such as glucose. Vitamin B are a class of water-soluble vitamins which play an important role in cell metabolism.
5. The Trans-fats cause problems in human body because__:
[A] The fat molecules contain high energy that cause oxidation of the tissues
[B] The structure of the fat molecules is such that more molecules can fit in lesser space
[C] The fat molecules contain lesser energy and can not be used so easily
[D] None of the above reasons
Show Answer
Correct Answer: B [ The structure of the fat molecules is such that more molecules can fit in lesser space]
Notes:
Trans unsaturated fats are particularly risky because the double bond stereochemistry allows the fat molecules to assume a linear conformation, which leads to efficient packing (i.e., plaque formation).
6. ‘Ophiology’ is the study of which of the following animals?
[A] Moths and Butterflies
[B] Snakes
[C] Whales
[D] Ants
Show Answer
Correct Answer: B [Snakes]
Notes:
Ophiology is the branch of Biology that study Snakes. Thus Option [B] is correct. While the study of Moths and Butterflies is called as Lepidoteriology, The study of whale is called as Cetology and the study of Ants is called as Myrmecology.
7. Which of the following taxonomic level is same for man, monkey and tiger?
[A] Genus
[B] Family
[C] Order
[D] Class
Show Answer
Correct Answer: D [Class]
Notes:
The order Primata includes monkey, gorilla and man and the order Carnivora includes lion, tiger, cat and dog. These two orders are the members of the same class called Mammalia. So, man, monkey and tiger are in the same class.
8. What is epidermis made of?
[A] Dermatogen
[B] Periblem
[C] Protoderm
[D] Plerome
Show Answer
Correct Answer: A [Dermatogen]
Notes:
Dermatogen is the outer primary meristem of a plant or plant part that according to the histogen theory gives rise to epidermis, which is the outermost layer of the skin. Epidermis provides barrier to infection from environmental pathogens.
9. Who among the following proposed the theory of origin of life on earth?
[A] Haldane
[B] Stanley Miller
[C] Harold C. Urey
[D] Lamarck
Show Answer
Correct Answer: A [Haldane]
Notes:
The theory of origin of life on earth is proposed by Haldane. Further this theory was confirmed by the experiments conducted by Stanley L. Miller and Harold C. Urey.
10. T8 cells are related with which of the following?
[A] Virus
[B] Cell Receptors
[C] Antigen-presenting cell
[D] Cytotoxic T cell
Show Answer
Correct Answer: D [Cytotoxic T cell]
Notes:
A cytotoxic T cell (also known as TC, cytotoxic T lymphocyte, CTL, T-killer cell, cytolytic T cell, CD8+ T-cells or killer T cell) is a T lymphocyte that kills cancer cells, cells that are infected or cells that are damaged in other ways.
