Biology - Online Test

Q1. Zn2+   is an activator of
Answer : Option C
Explaination / Solution:

Zn2+ also serves as an activator of a group of enzymes: alcohol dehydrogenase, pyridine nucleotide dehydrogenase, carboxypeptidase.

Q2. The teeth occur in human beings are
Answer : Option A
Explaination / Solution:

Each tooth is embedded in a socket of jaw bone called thecodont. Human being forms two sets of teeth during their life temporary milk or deciduous teeth replaced by a set of permanent or adult teeth called diphyodont. An adult human has 32 permanent teeth which are of four different types called heterodont.

Q3. The disease causing microorganisms are called
Answer : Option A
Explaination / Solution:

A number of bacteria, fungi, virus etc. cause disease in human beings. These disease causing microbes are called pathogens.

Q4. Match the following

i. Theophrastus i. Systematics

ii. Dioscordies ii. Due Historia Plantarum

iii. Linnaeus iii. Species Plantarum

iv. Simpson iv. Materia melica

Answer : Option B
Explaination / Solution:
No Explaination.


Q5. The name of Dr. Norman Borlaug is associated with
Answer : Option A
Explaination / Solution:
No Explaination.


Q6. The first clinical gene therapy was done for the treatment of
Answer : Option C
Explaination / Solution:
No Explaination.


Q7. Match the list-I with list-II list-I list-II

p. Adenohypophysis i. Epinephrine

q. Adrenal medulla ii. Somatotropin

r. Parathyroid gland iii. Thymosin

s. Thymus gland iv. Calcitonin

Answer : Option D
Explaination / Solution:
No Explaination.


Q8. Classification of sponges is primarily based on the
Answer : Option C
Explaination / Solution:
No Explaination.


Q9. Nissl’s granules are absent in :
Answer : Option B
Explaination / Solution:

Nissl’s grains are mainly present in cyton and dendrite. These granules are rough endoplasmic reticulum with rosettes of free ribosome, the site for protein synthesis. It is absent in axon.

Q10. The plant which propagates with the help of its leaves is ___________.
Answer : Option D
Explaination / Solution:
No Explaination.