Life Processes in Plants Chapter 10 Quiz - MCQGeeks.com

What do plants primarily use to produce food?

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Carbon dioxide
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Hydrogen
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Oxygen
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Nitrogen

Which part of the plant is known as the 'food factory'?

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Flowers
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Roots
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Stems
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Leaves

What pigment is essential for photosynthesis?

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Xanthophyll
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Melanin
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Carotene
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Chlorophyll

What is the process by which plants make their food?

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Photosynthesis
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Respiration
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Transpiration
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Fermentation

Which gas do plants take in during photosynthesis?

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Hydrogen
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Oxygen
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Nitrogen
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Carbon dioxide

What do plants release as a byproduct of photosynthesis?

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Carbon dioxide
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Oxygen
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Nitrogen
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Methane

What structure in leaves helps with gas exchange?

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Stomata
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Xylem
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Chloroplasts
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Phloem

Which part of the plant transports water and minerals?

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Roots
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Leaves
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Phloem
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Xylem

What is the main product of photosynthesis?

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Water
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Oxygen
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Starch
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Glucose

What do plants need for photosynthesis besides sunlight?

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All of the above
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Chlorophyll
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Carbon dioxide
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Water

What happens to the plant in the dark during an experiment?

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It grows faster
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It produces more oxygen
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It does not produce starch
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It absorbs more water

What is the role of phloem in plants?

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Absorbing sunlight
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Transporting water
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Transporting food
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Storing nutrients

Which of the following is NOT a requirement for photosynthesis?

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Water
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Sunlight
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Chlorophyll
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Carbon monoxide

What is the word equation for photosynthesis?

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Glucose + Oxygen = Carbon dioxide + Water
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Carbon dioxide + Water = Glucose + Oxygen
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Oxygen + Water = Glucose + Carbon dioxide
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Glucose + Water = Oxygen + Carbon dioxide

What do plants use to absorb water from the soil?

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Leaves
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Stems
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Flowers
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Roots

Part A: Multiple Choice Questions (MCQs). Choose the correct option. The process by which green plants prepare their own food is called:

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Respiration
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Photosynthesis
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Transpiration
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Germination

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Which pigment traps sunlight for photosynthesis?

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Hemoglobin
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Chlorophyll
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Melanin
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Carotene

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Tiny pores present on leaves are called:

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Veins
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Nodes
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Stomata
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Petals

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Plants absorb water mainly through:

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Stem
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Flowers
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Leaves
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Roots

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Which gas is released during photosynthesis?

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Carbon dioxide
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Oxygen
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Nitrogen
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Hydrogen

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Which tissue transports water in plants?

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Phloem
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Xylem
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Epidermis
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Cortex

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Which part of the plant carries food to different parts?

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Root hair
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Xylem
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Phloem
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Stomata

Part A: Multiple Choice Questions (MCQs). Choose the correct option. Loss of water vapour from leaves is called:

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Respiration
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Germination
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Transpiration
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Nutrition

Part B: Assertion–Reason Questions. Choose the correct option (A, B, C, or D). A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C. Assertion is true, but Reason is false. D. Assertion is false, but Reason is true. Assertion: Leaves are called the food factories of plants. Reason: Leaves contain chlorophyll.

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A
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B
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C
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D

Part B: Assertion–Reason Questions. Choose the correct option (A, B, C, or D). A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C. Assertion is true, but Reason is false. D. Assertion is false, but Reason is true. Assertion: Roots help in anchoring plants. Reason: Roots absorb carbon dioxide from the soil.

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A
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B
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C
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D

Part B: Assertion–Reason Questions. Choose the correct option (A, B, C, or D). A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C. Assertion is true, but Reason is false. D. Assertion is false, but Reason is true. Assertion: Transpiration occurs mainly through stomata. Reason: Stomata are tiny openings present on leaves.

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A
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B
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C
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D

Part B: Assertion–Reason Questions. Choose the correct option (A, B, C, or D). A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C. Assertion is true, but Reason is false. D. Assertion is false, but Reason is true. Assertion: Xylem transports food in plants. Reason: Phloem transports prepared food.

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A
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B
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C
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D

Part B: Assertion–Reason Questions. Choose the correct option (A, B, C, or D). A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C. Assertion is true, but Reason is false. D. Assertion is false, but Reason is true. Assertion: Sunlight is necessary for photosynthesis. Reason: Solar energy helps chlorophyll make food.

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A
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B
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C
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D

Part E: Case-Based Questions. Case Study 1. Priya kept one plant near a sunny window and another in a completely dark room for a week. The plant in sunlight stayed green and healthy, while the one in darkness turned yellowish and weak with very little growth. Choose the correct option. Which process was affected in the plant kept in darkness?

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Photosynthesis
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Respiration
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Transpiration
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Germination

Part E: Case-Based Questions. Case Study 1. Priya kept one plant near a sunny window and another in a completely dark room for a week. The plant in sunlight stayed green and healthy, while the one in darkness turned yellowish and weak with very little growth. Choose the correct option. Why did the plant kept in darkness turn yellow?

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Lack of sunlight reduced chlorophyll and food production
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Overwatering damaged roots
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Pest attack destroyed leaves
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Excess minerals caused toxicity

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