CBSE Class 10 Science MCQs Chapter 6 Life Processes help students tackle the multiple-choice questions asked in the board exam. The Life Processes Class 10 MCQs provided here cover the different concepts of Chapter 6, Life Processes – transport and excretion in various organisms. In addition to MCQs on Life Processes Class 10, this chapter gives students detailed information on how these life processes are interconnected and their needs in an organism. So, students need to have a strong conceptual understanding of the chapter; only then could they be able to answer the Class 10 Science Chapter 6 MCQs. Just mugging up the topics will not help them solve the MCQs of the Life Process in the CBSE Class 10 exam. So, students are advised to go through the chapter thoroughly before answering these Life Processes MCQs Class 10.
By practising these Life Processes MCQs, students get well-versed with the new type of questions that can be asked in exams. Also, these Life Process MCQs will help students understand the new question paper format. They can download the CBSE Class 10 Science MCQs Chapter 6 Life Processes PDF in the link below so that they can refer to them anytime while studying. These Class 10 Life Processes MCQs will boost the confidence level of students. So, practising Class 10 Life Process MCQs help them score high marks in the board exam. Students can also access the CBSE Class 10 Science MCQs for other chapters for their exam preparation.
Certainly! Here are 50 MCQs based on the chapter "Life Processes" from the 10th CBSE board syllabus, along with the answers provided at the end:
50 MCQs on Life Processes:
1. Respiration is the process of:
a) Releasing energy from food
b) Taking in carbon dioxide
c) Exhaling oxygen
d) Synthesizing glucose
2. The process by which green plants make their food is called:
a) Respiration
b) Digestion
c) Photosynthesis
d) Transpiration
3. In which part of the plant does photosynthesis primarily occur?
a) Roots
b) Leaves
c) Stem
d) Flowers
4. What is the primary role of the stomata in leaves?
a) Absorbing water and minerals
b) Transporting nutrients
c) Regulating water loss and gas exchange
d) Providing structural support
5. Which of the following is not a raw material for photosynthesis?
a) Carbon dioxide
b) Sunlight
c) Water
d) Oxygen
6. The breakdown of glucose in the absence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration
7. Which of the following organisms carries out the process of photosynthesis?
a) Humans
b) Animals
c) Fungi
d) Green plants
8. What is the waste product of respiration in humans?
a) Carbon dioxide
b) Oxygen
c) Water
d) Glucose
9. Which of the following is a respiratory organ in humans?
a) Liver
b) Lungs
c) Kidney
d) Brain
10. Which of the following is an autotrophic mode of nutrition?
a) Ingestion
b) Photosynthesis
c) Absorption
d) Parasitism
11. The exchange of gases in the leaves of a plant occurs through:
a) Stomata
b) Lenticels
c) Root hairs
d) Guard cells
12. The process by which water and minerals are absorbed by the roots of a plant is called:
a) Photosynthesis
b) Transpiration
c) Respiration
d) Osmosis
13. Which of the following substances is transported by the phloem in plants?
a) Water and minerals
b) Oxygen and carbon dioxide
c) Sugars and other organic compounds
d) Amino acids and proteins
14. What is the primary pigment involved in capturing light energy for photosynthesis?
a) Chlorophyll
b) Carotene
c) Xanthophyll
d) Melanin
15. The breakdown of food substances into simpler forms that can be absorbed and used by cells is called:
a) Respiration
b) Digestion
c) Circulation
d) Transpiration
16. The process of intake of food and water by an organism is called:
a) Nutrition
b) Transport
c) Excretion
d) Reproduction
17. Which of the following is not a mode of nutrition in organisms?
a) Autotrophic nutrition
b) Heterotrophic nutrition
c) Parasitic nutrition
d) Cytotrophic nutrition
18. Which of the following is not a function of the human circulatory system?
a) Transporting oxygen and nutrients
b) Removing waste products
c) Controlling body temperature
d) Maintaining body posture
19. The process by which plants lose water in the form of water vapor through their leaves is called:
a) Transpiration
b) Respiration
c) Photosynthesis
d) Evaporation
20. The energy released during respiration is stored in the form of:
a) ATP (Adenosine Triphosphate)
b) Glucose
c) Oxygen
d) Carbon dioxide
21. Which of the following is a vestigial organ in humans?
a) Liver
b) Gallbladder
c) Spleen
d) Lungs
22. The process by which living organisms take in oxygen and release carbon dioxide is called:
a) Respiration
b) Digestion
c) Photosynthesis
d) Excretion
23. The waste product of photosynthesis is:
a) Glucose
b) Oxygen
c) Carbon dioxide
d) Water
24. In which part of the digestive system are most of the nutrients absorbed into the bloodstream?
a) Stomach
b) Large intestine
c) Small intestine
d) Esophagus
25. The process of breakdown of complex food substances into simpler forms in the alimentary canal is called:
a) Respiration
b) Transpiration
c) Absorption
d) Digestion
26. The process of the breakdown of glucose into energy and carbon dioxide is known as:
a) Respiration
b) Fermentation
c) Digestion
d) Photosynthesis
27. Which of the following is an example of a parasitic mode of nutrition?
a) Herbivory
b) Carnivory
c) Symbiosis
d) Tapeworm feeding on its host
28. The excretory unit of the human kidney is called:
a) Nephron
b) Alveolus
c) Neuron
d) Bronchus
29. The human respiratory system carries out:
a) Photosynthesis
b) Respiration
c) Digestion
d) Transpiration
30. What is the primary role of the alveoli in the respiratory system?
a) Transporting oxygen
b) Exchanging gases between blood and air
c) Filtration of impurities
d) Producing mucus
31. Which of the following is a waste product of the human circulatory system?
a) Glucose
b) Oxygen
c) Carbon dioxide
d) Water
32. Which of the following is a heterotrophic mode of nutrition?
a) Photosynthesis
b) Autotrophy
c) Parasitism
d) Absorption
33. The process by which excess water and waste products are eliminated from the body is called:
a) Transpiration
b) Respiration
c) Excretion
d) Digestion
34. The part of the digestive system responsible for grinding and breaking down food with the help of teeth is the:
a) Stomach
b) Esophagus
c) Small intestine
d) Mouth
35. The movement of food through the alimentary canal by sequential waves of muscle contraction is called:
a) Peristalsis
b) Digestion
c) Absorption
d) Fermentation
36. Which of the following is a plant hormone responsible for the bending of plant parts toward light?
a) Cytokinin
b) Gibberellin
c) Ethylene
d) Auxin
37. The part of the plant responsible for transpiration and gaseous exchange is the:
a) Root hairs
b) Xylem
c) Phloem
d) Stomata
38. The process by which plants make food using sunlight, carbon dioxide, and water is called:
a) Respiration
b) Digestion
c) Photosynthesis
d) Circulation
39. The enzyme responsible for breaking down starch into maltose during digestion is:
a) Pepsin
b) Trypsin
c) Amylase
d) Lipase
40. The fluid present in the cell that contains various organelles is called:
a) Cytoplasm
b) Nucleus
c) Cell membrane
d) Mitochondria
41. The process by which excess water and waste products are removed from the body in the form of urine is called:
a) Transpiration
b) Excretion
c) Digestion
d) Respiration
42. The part of the plant responsible for the transport of water and minerals from the roots to other parts of the plant is the:
a) Leaves
b) Flowers
c) Stems
d) Xylem
43. The breakdown of food substances into simpler forms in the presence of oxygen is called:
a) Respiration
b) Fermentation
c) Transpiration
d) Photosynthesis
44. The process by which water and nutrients are carried from the roots to the leaves of a plant is called:
a) Transpiration
b) Photosynthesis
c) Respiration
d) Digestion
45. The process of the intake of food and its utilization by the body for energy, growth, and repair is known as:
a) Digestion
b) Absorption
c) Nutrition
d) Assimilation
46. Which of the following is not a component of the human circulatory system?
a) Heart
b) Blood vessels
c) Lungs
d) Blood
47. The process by which nutrients are taken up by cells and utilized for various metabolic activities is called:
a) Digestion
b) Assimilation
c) Excretion
d) Respiration
48. The hormone responsible for the growth of the plant stem and controlling apical dominance is:
a) Auxin
b) Gibberellin
c) Cytokinin
d) Abscisic acid
49. The process of gaseous exchange in the human body occurs in the:
a) Alveoli of the lungs
b) Stomach
c) Kidneys
d) Liver
50. The part of the digestive system where most of the absorption of digested food occurs is the:
a) Esophagus
b) Stomach
c) Small intestine
d) Large intestine
Answers:
1. a) Releasing energy from food
2. c) Photosynthesis
3. b) Leaves
4. c) Regulating water loss and gas exchange
5. d) Oxygen
6. a) Fermentation
7. d) Green plants
8. a) Carbon dioxide
9. b) Lungs
10. b) Photosynthesis
11. a) Stomata
12. c) Respiration
13. c) Sugars and other organic compounds
14. a) Chlorophyll
15. b) Digestion
16. a) Nutrition
17. d) Cytotrophic nutrition
18. d) Maintaining body posture
19. a) Transpiration
20. a) ATP (Adenosine Triphosphate)
21. b) Gallbladder
22. a) Respiration
23. c) Carbon dioxide
24. c) Small intestine
25. d) Digestion
26. a) Respiration
27. d) Tapeworm feeding on its host
28. a) Nephron
29. b) Respiration
30. b) Exchanging gases between blood and air
31. c) Carbon dioxide
32. c) Parasitism
33. c) Excretion
34. d) Mouth
35. a) Peristalsis
36. d) Auxin
37. d) Stomata
38. c) Photosynthesis
39. c) Amylase
40. a) Cytoplasm
41. b) Excretion
42. d) Xylem
43. a) Respiration
44. a) Transpiration
45. c) Nutrition
46. c) Lungs
47. b) Assimilation
48. a) Auxin
49. a) Alveoli of the lungs
50. c) Small intestine
I hope you find these questions helpful for your preparation. Good luck with your studies!
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