Question 1

What is the name of a group of similar cells performing a specific function?

Accepted Answer

Tissue

Question 2

Which among the following is not a connective tissue?

Accepted Answer

Skin

Question 3

Which of the following micro-organism causes diseases like polio and chicken pox?

Accepted Answer

Virus

Question 4

Which of the following is not a plant hormone?

Accepted Answer

Thyroxin

Question 5

Which Vitamin is obtained from Sun rays?

Accepted Answer

Vitamin D

Question 6

What is the name of the hormone produced by thymus gland?

Accepted Answer

Thymosin

Question 7

Photosynthesis takes place in the presence of chlorophyll and _________.

Accepted Answer

sunlight

Question 8

Which blood group is universal acceptor?

Accepted Answer

AB+

Question 9

Insulin is a kind of _____

Accepted Answer

hormone

Question 10

Which among the following carries impure blood to human heart?

Accepted Answer

Pulmonary arteries

Question 11

Goitre is caused by the deficiency of ___________

Accepted Answer

Iodine

Question 12

The main protein found in milk is ____________

Accepted Answer

Casein

Question 13

Which organ gets affected in Weil's disease?

Accepted Answer

Kidney

Question 14

What is the full form of RNA?

Accepted Answer

Ribonucleic Acid

Question 15

Polynucleotide chain of DNA contains

Accepted Answer

The two DNA strands are called polynucleotidesbecause they are composed of simpler monomer units called nucleotides. Eachnucleotideis composed of one of four nitrogen-containingnucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.

Question 16

Most viruses that infect plants possess

Accepted Answer

Generally viruses that infect plants have single stranded RNA. Viruses infecting animals have double stranded RNA or DNA. Viruses which infect bacteria have double stranded DNA.

Question 17

Syngamy results information of

Accepted Answer

Syngamy, also known as fertilisation occurs between the male and female gametes. Syngamy may occur either externally, outside the body of organisms or internally, inside the body. Syngamy leads to formation of a specialised cell called diploid zygote.

Question 18

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

Accepted Answer

Deficiency of Vitamin C causes Scurvy, Swelling of gums etc.Vitamin K causes Non-clotting of blood ,Vitamin D causes Rickets in children and Osteomalasia in adults, Vitamin B 1 causes Beriberi,B2 causes Cracking of skin,reddish eye,cracking of tongue,B3 causes Whitening of hair ,mentally retardness ,B5 causes Pallagra or 4D syndrome,B6 causes Anemia,skin disease ,B7 causes Paralysis,hair falling,B11 causes Dysentery and B12 causes Jaundice and Teroile Glutemi

Question 19

The plant growth regulators are small, simple molecules of diverse chemical composition. They are

Accepted Answer

The plant growth regulators are small, simple molecules of diversechemical composition. They can be in form of indole compounds, adenine derivatives, carotenoids derivatives,terpenes or gases like ethyleneetc.The plant growth regulators are bifurcated into two groups according to their functions in a living plant body.First group of plant growth regulators are found in growth activities, for instance, cell division, flowering, fruiting and seed formation.The second group of Plant growth regulators are involved in plant responses to wounds and stresses of biotic and abiotic origin.

Question 20

Which of the following is responsible for giving colour to human skin?

Accepted Answer

Melanin

Biology Questions