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

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. https://mcqquestions.guru/mcq-questions-for-class-10-science-chapter-6/

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 MCQs Questions with Answers

Life Processes Class 10 MCQ Question 1.
The enzyme responsible for the digestion of proteins in the small intestine is:
(a) Pepsin
(b) Trypsin
(c) Amylase
(d) Lipase

Answer

Answer: (b) Trypsin


Class 10 Life Processes MCQ Question 2.
The part where the exchange of gases occurs during respiration is:
(a) Lungs and larynx
(b) Alveoli and throat
(c) Throat and lungs
(d) Alveoli and capillaries

Answer

Answer: (d) Alveoli and capillaries


Life Processes MCQ Class 10 Question 3.
The back flow of blood during the pumping of blood by heart is prevented by:
(a) Walls of ventncles
(b) Walls of atrium
(c) Valves in heart
(d) Walls between atria and ventricles

Answer

Answer: (c) Valves in heart


MCQ On Life Processes Class 10 Question 4.
The process of digestion is completed by:
(a) Intestinal juice
(b) trypsin
(c) bile juice
(d) pepsin

Answer

Answer: (a) Intestinal juice


Class 10 Science Chapter 6 MCQ Question 5.
The extracellular fluid released from the capillaries is:
(a) serum
(b) plasma
(c) lymph
(d) mucus

Answer

Answer: (c) lymph


MCQ Of Life Processes Class 10 Question 6.
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains
(a) complex proteins
(b) simple proteins
(c) fats
(d) starch

Answer

Answer: (d) starch


Class 10 Life Process MCQ Question 7.
In which part of the alimentary canal food is finally digested?
(a) Stomach
(b) Mouth cavity
(c) Large intestine
(d) Small intestine

Answer

Answer: (d) Small intestine


MCQ Life Processes Class 10 Question 8.
When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of
(a) oxygen
(b) carbon dioxide
(c) nitrogen
(d) water vapour

Answer

Answer: (b) carbon dioxide


Ch 6 Science Class 10 MCQ Question 9.
What prevents backflow of blood inside the heart during contraction?
(a) Valves in heart
(b) Thick muscular walls of ventricles
(c) Thin walls of atria
(d) All of the above

Answer

Answer: (a) Valves in heart


Class 10 Science Ch 6 MCQ Question 10.
In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
(a) Pisces and amphibians
(b) Amphibians and reptiles
(c) Amphibians only
(d) Pisces only

Answer

Answer: (d) Pisces only


Life Processes Class 10 MCQ With Answers Question 11.
Which of the following equations is the summary of photosynthesis?
(a) 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O
(b) 6CO2 + H2O + Sunlight → C6H12O6 + O2 + 6H2O
(c) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6O2 + 6H2O
(d) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6CO2 + 6H2O

Answer

Answer: (c) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6O2 + 6H2O


Life Process Class 10 MCQ Question 12.
Which is the first enzyme to mix with food i the digestive tract?
(a) Pepsin
(b) Cellulose
(c) Amylase
(d) Trypsin

Answer

Answer: (c) Amylase


MCQs Of Life Processes Class 10 Question 13.
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to
(a) conversion of pyruvate to ethanol
(b) conversion of pyruvate to glucose
(c) non conversion of glucose to pyruvate
(d) conversion of pyruvate to lactic acid

Answer

Answer: (d) conversion of pyruvate to lactic acid


MCQs On Life Processes Class 10 Question 14.
Choose the correct path of urine in our body
(a) kidney → ureter → urethra → urinary bladder
(b) kidney → urinary bladder → urethra → ureter
(c) kidney → ureters → urinary bladder → urethra
(d) urinary bladder → kidney → ureter → urethra

Answer

Answer: (c) kidney → ureters → urinary bladder → urethra


Fill in the blanks

1. More energy is made available to the organims by the …………… respiration.

Answer

Answer: Aerobic


2. Plants store most of their wastes in the membrane hound structures called …………… present in their cells.

Answer

Answer: Vacuoles


3. Plants can get rid of excess water by ……………

Answer

Answer: transpiration


4. Artificial kidney is a device which carries out …………… to remove nitrogenous waste products from the blood.

Answer

Answer: Dialysis


5. The tubular parts of the nephron selectively …………… the substances needed by the body.

Answer

Answer: reabsorbs


6. The purpose of making …………… is to filter out harmful nitrogenous waste products from the blood.

Answer

Answer: Urine


7. The osmotic pressure in phloem increases on transfer of …………… into it from the leaves.

Answer

Answer: Sucrose


8. The major driving force for the water in the xylem during day time is the ……………

Answer

Answer: transpiration pull


9. Water conducting channels are formed by the …………… and the …………… of the xylem tissue.

Answer

Answer: tracheids, vessels


10. Some amount of plasma, proteins and blood cells escape from …………… the wall into intercellular spaces in the tissues to form the tissue fluid or lymph.

Answer

Answer: capillary


11. Fishes have a heart with …………… chambers while the amphibians have …………… chambers in their heart.

Answer

Answer: two, three


12. Capillaries join together to form …………… that convey the blood away from the organ or tissue.

Answer

Answer: veins


13. Veins have …………… to ensure that the blood flows through them only in one direction.

Answer

Answer: valves


14. To ensure a sufficient time for oxygen to be absorbed and for the carbon dioxide to be released lungs contain a …………… of air.

Answer

Answer: residual volume


15. A respiratory pigment called …………… has a high affinity for oxygen and helps to transport oxygen to various parts of our body.

Answer

Answer: haemoglobin


16. The build-up of …………… during …………… respiration is the cause of muscular cramps.

Answer

Answer: lactic acid, anaerobic


17. The wall of small intestine has …………… which help in absorption of digested food.

Answer

Answer: villi


18. Pancreatic juice contains trypsin for digesting …………… and …………… for breaking down emulsified fats.

Answer

Answer: proteins, lipase


19. The saliva has …………… to help in the digestion of starch present in the food.

Answer

Answer: salivary amylase


Match the column I with column II and mark the correct option from the codes given below

Column I Column II
(i) Salivary amylase (a) Nephron
(ii) Lactic acid (b) Protein
(iii) Cuticle (c) Carbon dioxide
(iv) Trypsin (d) Blood
(v) Heterotrophic (e) Waxy coating
(vi) Potassium hydroxide (f) Starch
(vii) Lipase (g) Muscles
(viii) Filtration unit (h) Cuscuta
(ix) Connective tissue (j) Fatty acids and glycerol
Answer

Answer:

Column I Column II
(i) Salivary amylase (f) Starch
(ii) Lactic acid (g) Muscles
(iii) Cuticle (e) Waxy coating
(iv) Trypsin (b) Protein
(v) Heterotrophic (h) Cuscuta
(vi) Potassium hydroxide (c) Carbon dioxide
(vii) Lipase (i) Fatty acids and glycerol
(viii) Filtration unit (a) Nephron
(ix) Connective tissue (d) Blood

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