Class 10th Science Chapter – 5 Life Processes MCQ With Answers

September 22, 2023

Class 10th Science Chapter – 5 Life Processes

Textbook	NCERT
Class	10th
Subject	Science
Chapter	5^th
Chapter Name	Life Processes
Category	Class 10th Science MCQ
Medium	English
Source	Last Doubt

Class 10th Science Chapter – 5 Life Processes MCQ With Answers Which you will learn such topics: will learn about Life Processes, Respiration in Animals, Nutrition, Transportation in plants, Excretion, Modes of Nutrition, Autotrophic Nutrition, How do organisms obtain their food, Small Intestine, Large Intestine and more such things for more knowledge about this Chapters read their Notes.

Class 10th Science Chapter – 5 Life Processes

Chapter – 5

Life Processes

MCQ

1. Which of the following are energy foods?

(a) Carbohydrates and fats
(b) Proteins and mineral salts
(c) Vitamins and minerals
(d) Water and roughage

Answer – (a) Carbohydrates and fats

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

(a) Saprotrophic nutrition
(b) Parasitic nutrition
(c) Holozoic nutrition
(d) Autotrophic nutrition

Answer – (b) Parasitic nutrition

3. The mode of nutrition found in fungi is:

(a) Parasitic nutrition
(b) Holozoic nutrition
(c) Autotrophic nutrition
(d) Saprotrophic nutrition

Answer – (d) Saprotrophic nutrition

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

(a) diffusion
(b) transpiration
(c) osmosis
(d) None of these

Answer – (c) osmosis

5. In amoeba, food is digested in the:

(a) food vacuole
(b) mitochondria
(c) pseudopodia
(d) chloroplast

Answer – (a) food vacuole

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

(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.

Answer – (a) Starch breaking down into sugars.

7. Which region of the alimentary canal absorbs the digested food?

(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Liver

Answer – (b) Small intestine

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

(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion

Answer – (c) peristaltic movement

9. 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:

(a) fats
(b) complex proteins
(c) starch
(d) simple proteins

Answer – (c) starch

10. The exit of unabsorbed food material is regu-lated by

(a) liver
(b) anus
(c) small intestine
(d) anal sphincter

Answer – (d) anal sphincter

11. What are the products obtained by anaerobic respiration in plants?

(a) Lactic acid + Energy
(b) Carbon dioxide + Water + Energy
(c) Ethanol + Carbon dioxide + Energy
(d) Pyruvate

Answer – (c) Ethanol + Carbon dioxide + Energy

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

(a) cytoplasm
(b) mitochondria
(c) chloroplast
(d) nucleus

Answer – (b) mitochondria

13. Glycolysis process occurs in which part of the cell?

(a) Cytoplasm
(b) Nucleus
(c) Mitochondria
(d) Chloroplast

Answer – (a) Cytoplasm

14. Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps?

(a) Ethanol + Carbon dioxide + Energy
(b) Lactic acid + Energy
(c) Carbon dioxide + Water + Energy
(d) Pyruvate

Answer – (b) Lactic acid + Energy

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

(a) Lenticels
(b) Vacuoles
(c) Xylem
(d) Stomata

Answer – (d) Stomata

16. The respiratory pigment in human beings is:

(a) carotene
(b) chlorophyll
(c) haemoglobin
(d) mitochondria

Answer – (c) haemoglobin

17. Which plant tissue transports water and minerals from the roots to the leaf?

(a) Xylem
(b) Phloem
(c) Parenchyma
(d) Collenchyma

Answer – (a) Xylem

18. The movement of food in phloem is called:

(a) transpiration
(b) translocation
(c) respiration
(d) evaporation

Answer – (b) translocation

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

(a) artery
(b) capillary
(c) Vein
(d) Haemoglobin

Answer – (a) artery

NCERT Solution Class 10th Science All Chapters MCQ

Chapter 1 – Chemical Reactions and Equations

Chapter 2 – Acids, Bases, and Salts

Chapter 3 – Metals and Non-Metals

Chapter 4 – Carbon and Its Compounds

Chapter 5 – Life Processes

Chapter 6 – Control and Coordination

Chapter 7 – How Do Organisms Reproduce

Chapter 8 – Heredity

Chapter 9 – Light reflection and refraction

Chapter 10 – Human eye and colorful world

Chapter 11 – Electricity