Samacheer Kalvi Class 8 Science Organisation of Life Questions - 1

Question: 1

The erythrocyte is placed in _____ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.

(A) Acidic

(B) Neutral

(C) Hypotonic

(D) Hypertonic

Question: 2

_____ is tough and thick white sheath that protect the inner parts of the eye.

(A) Iris

(B) Cornea

(C) Conjunctiva

(D) Sclera

Question: 3

The process of air passing in and out the lungs is called _____

(A) Breathing

(B) Exhalation

(C) Inhalation

(D) None of these

Question: 4

Osmosis is the movement of water molecules from a _____

(A) Higher concentration to a region of lower concentration

(B) Lower concentration to a region of higher concentration

(C) Both of these

(D) None of these

Question: 5

______ is a type of connective tissue.

(A) Ciliated epithelium

(B) Cardiac muscle

(C) Neuron

(D) Bone

Question: 6

_____ of the eye is comparable to film of a camera.

(A) Cornea

(B) Lens

(C) Retina

(D) Sclera

Question: 7

Each glucose molecule produces ATP.

(A) 34

(B) 36

(C) 38

(D) 40

Question: 8

_____ is a transparent layer.

(A) Retina

(B) Sclera

(C) Choroid

(D) Cornea

Question: 9

In the absence of oxygen, glucose is broken down into _____

(A) Acetic acid

(B) Citric acid

(C) Lactic acid

(D) Nitric acid

Question: 10

Maintenance of constant internal environment of the body is known as _____

(A) Homeophilics

(B) Homeokinesis

(C) Homeophytes

(D) Homeostasis