1)

Which is the correct sequence of body parts in the human alimentary canal?

Class 10 Biology

A)

Mouth → stomach → small intestine → large intestine → oesophagus

B)

Mouth → oesophagus → stomach → small intestine → large intestine

C)

Mouth → stomach → oesophagus → smallintestine → large intestine

D)

Mouth → oesophagus → stomach → large intestine → small intestine

2)

Where is the dirty blood in our body filtered?

Class 10 Biology

A)

Heart

B)

lungs

C)

Ureter

D)

Kidneys

3)

Which part of nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?

Class 10 Biology

A)

Tubule

B)

Glomerulus

C)

Bowman’s capsule

D)

Ureter

4)

 Name the tube which connects the kidneys to the urinary bladder.

Class 10 Biology

A)

Urethra

B)

Nephron

C)

Tubule

D)

Ureter

5)

Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following:

Class 10 Biology

A)

hyla, rana, draco

B)

whale, dolphin, turtle

C)

labeo, chameleon, salamander

D)

hippocampus, exocoetus, anabas

6)

Name a circulatory fluid in the human body other than blood.

Class 10 Biology

A)

Platelets

B)

RBC

C)

Lymph

D)

Plasma

7)

A blood vessel which pumps the blood from the heart to the entire body:

Class 10 Biology

A)

artery

B)

capillary

C)

vein

D)

Haemoglobin

8)

The movement of food in phloem is called:

Class 10 Biology

A)

transpiration

B)

translocation

C)

respiration

D)

evaporation

9)

Which plant tissue transports water and min-erals from the roots to the leaf?

Class 10 Biology

A)

Xylem

B)

Phloem

C)

Parenchyma

D)

Collenchyma

10)

The respiratory pigment in human beings is:

Class 10 Biology

A)

carotene

B)

chlorophyll

C)

haemoglobin

D)

mitochondria

11)

Name the pores in a leaf through which respi-ratory exchange of gases takes place.

Class 10 Biology

A)

Lenticels

B)

Vacuoles

C)

Xylem

D)

Stomata

12)

Glycolysis process occurs in which part of the cell?

Class 10 Biology

A)

Cytoplasm

B)

Nucleus

C)

Mitochondria

D)

Chloroplast

13)

The breakdown of pyruvate to give carbon di-oxide, water and energy takes place in

Class 10 Biology

A)

cytoplasm

B)

mitochondria

C)

chloroplast

D)

nucleus

14)

What are the products obtained by anaerobic respiration in plants?

Class 10 Biology

A)

Lactic acid + Energy

B)

Carbon dioxide + Water + Energy

C)

Ethanol + Carbon dioxide + Energy

D)

Pyruvate

15)

The exit of unabsorbed food material is regu-lated by

Class 10 Biology

A)

liver

B)

anus

C)

small intestine

D)

 anal sphincter

16)

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

17)

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

18)

Which region of the alimentary canal absorbs the digested food?

Class 10 Biology

A)

Stomach

B)

Small intestine

C)

 Large intestine

D)

Liver

19)

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.

20)

 In amoeba, food is digested in the:

Class 10 Biology

A)

food vacuole

B)

mitochondria

C)

pseudopodia

D)

chloroplast

21)

The site of photosynthesis in the cells of a leaf is

Class 10 Biology

A)

chloroplast

B)

mitochondria

C)

cytoplasm

D)

protoplasm

22)

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

23)

The mode of nutrition found in fungi is:

Class 10 Biology

A)

Parasitic nutrition

B)

Holozoic nutrition

C)

Autotrophic nutrition

D)

Saprotrophic nutrition

24)

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

25)

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