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.

Q1
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.
Q2
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.
Q3
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.
Q4
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.
Q5
Medium
Which of the following is a byproduct of photosynthesis?
A. Oxygen
B. Carbon Dioxide
C. Nitrogen
D. Glucose
Show Answer & Explanation
Correct Answer: A
Oxygen is released during photosynthesis as a byproduct when plants convert carbon dioxide and water into glucose.
Q6
Medium
In which part of the plant does photosynthesis primarily take place?
A. Roots
B. Stem
C. Leaves
D. Flowers
Show Answer & Explanation
Correct Answer: C
Photosynthesis primarily occurs in the leaves where chlorophyll is abundant.
Q7
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
Show Answer & Explanation
Correct Answer: B
Sunlight provides the energy required for plants to convert carbon dioxide and water into glucose.
Q8
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.
Q9
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.