Nutrition in Plants MCQ Questions for CBSE Class 7 Science Chapter 1

Reading Time: 12 minutes

Last Updated on October 27, 2024 by XAM CONTENT

Hello students, we are providing mcq questions for class 7 science. MCQ questions are the new question format that is introduced in CBSE board. The resources for quality mcq questions are very less. So, to help students we have created chapterwise mcq questions for class 7 science. In this article, you will find mcq questions for cbse class 7 science chapter 1 Nutrition in Plants.

Chapter	Nutrition in Plants
Type of Questions	MCQ Questions
Nature of Questions	Competency Based Questions
Board	CBSE
Class	7
Subject	Science
Useful for	Class 7 Studying Students
Answers provided	Yes
Difficulty level	Mentioned
Important Link	Class 7 Science Chapterwise Case Study

MCQ Questions on Nutrition in Plants

1. Which part of the plant is mainly involved in the absorption of light energy?

1. Roots
2. Stem
3. Leaves
4. Flowers

Ans. Leaves

2. What is the primary mode of nutrition in plants?

1. Heterotrophic
2. Autotrophic
3. Saprotrophic
4. Parasitic

Ans. Autotrophic

3. What is the green pigment called that is essential for photosynthesis?

1. Xanthophyll
2. Chlorophyll
3. Anthocyanin
4. Carotene

Ans. Chlorophyll

4. Through which part of the plant does carbon dioxide enter the leaves?

1. Stomata
2. Cuticle
3. Root hair
4. Petals

Ans. Stomata

5. What are the organisms called that synthesize their food from inorganic materials?

1. Autotrophs
2. Heterotrophs
3. Saprotrophs
4. Parasites

Ans. Autotrophs

Also read: All resources for CBSE Class 7

6. Which of the following is not a product of photosynthesis?

1. Oxygen
2. Carbon dioxide
3. Water
4. Carbohydrate

Ans. Carbon dioxide

7. What is the process called where plants make their food using sunlight?

1. Respiration
2. Transpiration
3. Photosynthesis
4. Digestion

Ans. Photosynthesis

8. What kind of plants are called saprotrophs?

1. Plants that feed on dead and decaying matter
2. Plants that prepare their own food
3. Plants that feed on insects
4. Plants that feed through parasitic means

Ans. Plants that feed on dead and decaying matter

9. What is nitrogen fixed by in the soil to become usable for plants?

1. Sunlight
2. Chlorophyll
3. Bacteria
4. Fungi

Ans. Bacteria

10. Which of the following is a parasite?

1. Algae
2. Cuscuta
3. Mushroom
4. Yeast

Ans. Cuscuta

11. In which part of the plant does photosynthesis primarily occur?

1. Stem
2. Root
3. Leaf
4. Flower

Ans. Leaf

12. What is the role of chlorophyll in photosynthesis?

1. It absorbs carbon dioxide
2. It captures light energy
3. It releases oxygen
4. It transports water

Ans. It captures light energy

13. Which type of nutrition do fungi use?

1. Autotrophic
2. Heterotrophic
3. Saprotrophic
4. Parasitic

Ans. Saprotrophic

14. What are stomata?

1. A type of fungus
2. Small openings on the surface of leaves
3. Water-absorbing roots
4. Part of the flower

Ans. Small openings on the surface of leaves

15. What do guard cells do?

1. Protect the plant from insects
2. Regulate the opening and closing of stomata
3. Absorb minerals from the soil
4. Capture light energy

16. What is the main product of photosynthesis?

1. Nitrogen
2. Oxygen
3. Carbon dioxide
4. Glucose

Ans. Glucose

17. Which gas is absorbed by plants during photosynthesis?

1. Oxygen
2. Nitrogen
3. Carbon dioxide
4. Hydrogen

Ans. Carbon dioxide

18. Which mineral is essential for the synthesis of proteins in plants?

1. Potassium
2. Nitrogen
3. Phosphorus
4. Calcium

Ans. Nitrogen

19. What is transpiration?

1. Absorption of water by roots
2. Loss of water from leaves
3. Synthesis of food in leaves
4. Growth of roots in soil

Ans. Loss of water from leaves

20. What type of relationship do Rhizobium bacteria and leguminous plants have?

1. Parasitic
2. Saprotrophic
3. Symbiotic
4. Predatory

Ans. Symbiotic

21. Why do farmers add manure to the soil?

1. To increase water absorption
2. To add nutrients to the soil
3. To prevent soil erosion
4. To remove weeds

Ans. To add nutrients to the soil

22. What is the main reason plants need nitrogen?

1. To make chlorophyll
2. To create a strong structure
3. To synthesize proteins
4. To store energy

Ans. To synthesize proteins

23. How do plants absorb minerals from the soil?

1. Through leaves
2. Through flowers
3. Through roots
4. Through seeds

Ans. Through roots

24. What happens to oxygen produced during photosynthesis?

1. It is used in respiration
2. It is stored in the leaves
3. It is converted into carbon dioxide
4. It is released into the atmosphere

Ans. It is released into the atmosphere

25. How do insectivorous plants obtain nutrients?

1. Through photosynthesis
2. From the insects they trap
3. From the soil
4. From water

Ans. From the insects they trap

26. What are lichens an example of?

1. Parasitism
2. Symbiosis
3. Saprotrophism
4. Autotrophism

Ans. Symbiosis

27. Which plant part acts as the primary site for photosynthesis?

1. Leaf
2. Root
3. Stem
4. Flower

Ans. Leaf

28. What is the term for plants that make their food using inorganic substances?

1. Heterotrophs
2. Autotrophs
3. Saprotrophs
4. Parasites

Ans. Autotrophs

29. What substance in the leaf captures solar energy for photosynthesis?

1. Stomata
2. Cellulose
3. Chlorophyll
4. Cuticle

Ans. Chlorophyll

30. What process do fungi use to obtain nutrients?

1. Photosynthesis
2. Predation
3. Saprotrophic nutrition
4. Symbiotic nutrition

Ans. Saprotrophic nutrition

31. What gas do plants take in that is necessary for photosynthesis?

1. Oxygen
2. Hydrogen
3. Nitrogen
4. Carbon dioxide

Ans. Carbon dioxide

32. What is not a role of nutrients in plants?

1. To build body structures
2. To facilitate growth
3. To synthesize chlorophyll
4. To fix nitrogen

Ans. To fix nitrogen

33. What do legumes use to fix nitrogen?

1. Chlorophyll
2. Stomata
3. Rhizobium bacteria
4. Phloem

Ans. Rhizobium bacteria

34. What is the function of manure added to soil?

1. To increase water retention
2. To kill pests
3. To add nutrients
4. To increase sunlight absorption

Ans. To add nutrients

35. Plants absorb nutrients through their _______.

1. Leaves
2. Flowers
3. Roots
4. Stem

Ans. Roots

36. What role do fungi play in ecosystems?

1. They produce oxygen
2. They decompose dead organic matter
3. They fix nitrogen
4. They absorb light energy

Ans. They decompose dead organic matter

37. What type of plant is Cuscuta?

1. Parasitic
2. Autotrophic
3. Insectivorous
4. Saprotrophic

Ans. Parasitic

38. Why is photosynthesis considered a vital process on Earth?

1. It produces carbohydrates
2. It produces oxygen
3. It regulates temperature
4. It purifies water

Ans. It produces oxygen

39. What do guard cells regulate?

1. Water flow in xylem
2. Sugar transport in phloem
3. Opening and closing of stomata
4. Absorption of sunlight

Ans. Opening and closing of stomata

40. Which of the following minerals plays a major role in energy storage and transfer of ADP into ATP molecules?

1. Molybdenum
2. Phosphorus
3. None of the above
4. Magnesium

Ans. Phosphorus

41. The main mode of nutrition in plants is __________.

1. Heterotrophic
2. None of the above
3. Autotrophic
4. Saprophytic

Ans. Autotrophic

42. Which of the following minerals helps in improving both the quantity and quality of dry matter in leafy vegetables and protein in grain crops?

1. Molybdenum
2. Nitrogen
3. Iron
4. Copper

Ans. Nitrogen

43. How many essential nutrients does a plant require?

1. 20
2. 16
3. 15
4. 17

Ans. 17

44. Which of the following minerals is required by the plants in large quantities?

1. Molybdenum
2. Manganese
3. Chlorine
4. Phosphorus

Ans. Phosphorus

45. Which of the following statements is false about nutrition?

1. Manganese and molybdenum are micronutrients
2. Nutrition provides energy for carrying out various functions.
3. Plant hormones are nutrients
4. Nitrogen and phosphorus are macronutrients

Ans. Plant hormones are nutrients

46. Chlorosis is yellowing of the leaves, caused due to the deficiency of ________.

1. Manganese
2. All of the above
3. Zinc
4. Potassium

Ans. All of the above

47. What is the primary site for photosynthesis in most plants?

1. Stem
2. Root
3. Leaf
4. Flower

Ans. Leaf

48. What is the term for plants that produce their own food?

1. Heterotrophs
2. Autotrophs
3. Saprotrophs
4. Parasites

Ans. Autotrophs

49. Which of the following minerals is required for the synthesis of chlorophyll?

1. Iron
2. Nitrogen
3. Copper
4. Potassium

Ans. Iron

50. Which of the following minerals is a constituent of cell membranes and nucleic acids?

1. Manganese
2. Zinc
3. Phosphorous
4. Potassium

Also check

• Nutrition in Plants MCQ Questions for CBSE Class 7 Science Chapter 1

Important Resources for Class 7

Class 7 Science Case Study	Class 7 Maths Case Study
Class 7 Science Assertion Reasoning	Class 7 Maths Assertion Reasoning

Frequently Asked Questions (FAQs) on Nutrition in Plants MCQ Questions