1000+ GK Objective Questions for Competitive Exams - 2

Question: 6

What are polysomes?

Ribosomes occurring in chains attached to mRNA are called polysomes.

Question: 7

What is reflex action?

The spinal cord responds to certain stimuli without getting initiation from the brain. Such constant response is called reflex action.

Question: 8

What is endosmosis?

When a living cell is placed in water or hypotenic solution (dilute solution) water enters into the cell by osomosis. This process is called endosmosis.

Question: 9

What is chromoplast?

Chromoplast are colured plastids which are red, orange and yellowish. They are responsible for the coloration of flowers and fruits.

Question: 10

What is insect vector?

An insect which is capable of transmitting or spreading disease is called an insect vector.