MCQ Questions | Class 10 Science Chapter 6 | Life Processes with Answers

MCQ | Class 10 Science Chapter 6 | Life Processes Set A

Check the below NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Life Processes Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | Science Class 10 Chapter 6

NCERT Solutions Class 10 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	10th
Subject:	Science
Chapter:	6
Chapters Name:	Life Processes
Medium:	English

Class 10th Science Book | Objective Type Questions

You can refer to NCERT Solutions for Class 10 Science Chapter 6 Life Processes to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Life Processes | Class 10 Science | NCERT Solutions

Q1.	In which of the following group/ groups of animals, heart does not pump oxygenated blood to different parts of the body?
	A. Pisces only
	B. Amphibians only
	C. Amphibians and reptiles only
	D. Pisces and amphibians

Ans: Pisces only

Q2.	The filtration units of kidneys are called –
	A. Ureter
	B. Urethra
	C. Neurons
	D. nephrons.

Ans: nephrons

Q3.	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

Ans: Lactic acid + Energy

Q4.	When air is blown from mouth into a test – tube containing lime water, the lime water turned milky due to presence of:
	A. oxygen
	B. nitrogen
	C. water vapour
	D. carbon dioxide

Ans: carbon dioxide

Q5.	The mode of nutrition found in fungi is:
	A. Parasitic nutrition
	B. Holozoic nutrition
	C. Autotrophic nutrition
	D. Saprotrophic nutrition

Ans: Saprotrophic nutrition

Q6.	The site of photosynthesis in the cells of a leaf is
	A. chloroplast
	B. mitochondria
	C. cytoplasm
	D. protoplasm

Ans: chloroplast

Q7.	During contraction of heart, what prevents back flow of blood?
	A. Thin walls of atria
	B. Thick muscular walls of ventricles
	C. Valves in heart
	D. All of the above

Ans: Valves in heart

Q8.	Woody plants carry gaseous exchange through
	A. root hair
	B. stem hair
	C. Lenticels
	D. epidermal cells.

Ans: Lenticels

Q9.	The contraction and expansion movement of the walls of the food pipe is called:
	A. translocation
	B. transpiration
	C. peristaltic movement
	D. digestion

Ans: peristaltic movement

Q10.	The process by which blood is cleared of metabolic wastes in case of kidney failure is called
	A. artificial kidney
	B. dialysis
	C. transplantation
	D. filtration

Ans: dialysis

Q11.	Trachea do not collapse when there is not much air because they are:
	A. thick and muscular
	B. having cartilaginous rings
	C. have valves
	D. supported by larynx.

Ans: having cartilaginous rings

Q12.	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.

Ans: Starch breaking down into sugars.

Q13.	Which region of the alimentary canal absorbs the digested food?
	A. Stomach
	B. Small intestine
	C. Large intestine
	D. Liver

Ans: Small intestine

Q14.	Amoeba shows following kind of nutrition.
	A. autotrophic
	B. holozoic
	C. saprotrophic
	D. parasitic

Ans: holozoic

Q15.	The exit of unabsorbed food material is regulated by
	A. liver
	B. anus
	C. small intestine
	D. anal sphincter

Ans: anal sphincter

Q16.	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