1)

Which of the following are energy foods?

Class 10 Biology

A)

Carbohydrates and fats

B)

Proteins and mineral salts

C)

Vitamins and minerals

D)

Water and roughage

2)

In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it?

Class 10 Biology

A)

Saprotrophic nutrition

B)

Parasitic nutrition

C)

Holozoic nutrition

D)

Autotrophic nutrition

3)

The mode of nutrition found in fungi is:

Class 10 Biology

A)

Parasitic nutrition

B)

Holozoic nutrition

C)

Autotrophic nutrition

D)

Saprotrophic nutrition

4)

Roots of the plants absorb water from the soil through the process of:

Class 10 Biology

A)

diffusion

B)

transpiration

C)

osmosis

D)

None of these

5)

The site of photosynthesis in the cells of a leaf is

Class 10 Biology

A)

chloroplast

B)

mitochondria

C)

cytoplasm

D)

protoplasm

6)

 In amoeba, food is digested in the:

Class 10 Biology

A)

food vacuole

B)

mitochondria

C)

pseudopodia

D)

chloroplast

7)

Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?

Class 10 Biology

A)

Starch breaking down into sugars.

B)

Proteins breaking down into amino acids.

C)

Absorption of vitamins.

D)

Fats breaking down into fatty acids and glycerol.

8)

Which region of the alimentary canal absorbs the digested food?

Class 10 Biology

A)

Stomach

B)

Small intestine

C)

 Large intestine

D)

Liver

9)

The contraction and expansion movement of the walls of the food pipe is called:

Class 10 Biology

A)

translocation

B)

transpiration

C)

peristaltic movement

D)

digestion

10)

When a few drops of iodine solution are added to rice water, the solution turns blue- black in colour. This indicates that rice water contains

Class 10 Biology

A)

fats

B)

complex proteins

C)

starch

D)

simple proteins