Nutrition in Plants Practice Questions

Class 7 · Science · 1223 free MCQs with instant results and detailed explanations.

1223

Total

376

Easy

596

Medium

251

Hard

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Topics in Nutrition in Plants

Parasitic Nutrition 427

Insectivorous Plants 393

Photosynthesis 403

Sample Questions from Nutrition in Plants

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

What is the primary process by which plants make their own food?

A. Photosynthesis

B. Respiration

C. Transpiration

D. Digestion

Show Answer & Explanation

Correct Answer: A

Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Easy

Which pigment is primarily responsible for capturing light energy in plants?

A. Chlorophyll

B. Carotene

C. Xanthophyll

D. Melanin

Show Answer & Explanation

Correct Answer: A

Chlorophyll is the green pigment in plants that absorbs light energy necessary for photosynthesis.

Easy

During photosynthesis, which gas do plants absorb from the atmosphere?

A. Oxygen

B. Nitrogen

C. Carbon Dioxide

D. Hydrogen

Show Answer & Explanation

Correct Answer: C

Plants absorb carbon dioxide from the atmosphere for photosynthesis, using it to produce glucose.

Medium

What is the primary pigment involved in photosynthesis?

A. Chlorophyll

B. Carotene

C. Xanthophyll

D. Anthocyanin

Show Answer & Explanation

Correct Answer: A

Chlorophyll is the main pigment that absorbs sunlight for photosynthesis.

Medium

Which of the following is a byproduct of photosynthesis?

A. Oxygen

B. Carbon Dioxide

C. Nitrogen

D. Glucose

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Correct Answer: A

Oxygen is released during photosynthesis as a byproduct when plants convert carbon dioxide and water into glucose.

Medium

In which part of the plant does photosynthesis primarily take place?

A. Roots

B. Stem

C. Leaves

D. Flowers

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Correct Answer: C

Photosynthesis primarily occurs in the leaves where chlorophyll is abundant.

Medium

What role does sunlight play in photosynthesis?

A. It cools the plant

B. It provides energy

C. It increases water loss

D. It changes soil pH

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Correct Answer: B

Sunlight provides the energy required for plants to convert carbon dioxide and water into glucose.

Hard

Which of the following factors is NOT essential for photosynthesis to occur in plants?

A. Chlorophyll

B. Oxygen

C. Water

D. Light

Show Answer & Explanation

Correct Answer: B

Oxygen is a byproduct of photosynthesis, not a necessary factor for the process itself.

Hard

If a plant is exposed to light for 12 hours a day, and it uses 2 grams of glucose per hour for growth, how much glucose will it produce in a day through photosynthesis?

A. 12 grams

B. 24 grams

C. 36 grams

D. 48 grams

Show Answer & Explanation

Correct Answer: B

In 12 hours, if the plant produces 2 grams of glucose each hour, it will produce a total of 12 * 2 = 24 grams.

Q10

Hard

During photosynthesis, plants convert light energy into chemical energy. Which of the following best describes the type of chemical energy produced?

A. ATP

B. Glucose

C. Fructose

D. Starch

Show Answer & Explanation

Correct Answer: B

Glucose is the primary product of photosynthesis, which serves as a source of chemical energy for plants.

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Nutrition in Plants — Class 7 Science Practice Questions Online

This page contains 1223 practice MCQs for the chapter Nutrition in Plants in Class 7 Science. The questions are organized by difficulty — 376 easy, 596 medium, 251 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.