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Test: Nutrition In Plants - UPSC MCQ


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5 Questions MCQ Test - Test: Nutrition In Plants

Test: Nutrition In Plants for UPSC 2024 is part of UPSC preparation. The Test: Nutrition In Plants questions and answers have been prepared according to the UPSC exam syllabus.The Test: Nutrition In Plants MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Nutrition In Plants below.
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Test: Nutrition In Plants - Question 1
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The opening and closing of stomata is controlled by:

Detailed Solution for Test: Nutrition In Plants - Question 1

Stomata closed by guard cell and it regulate opening and closing of stomata. When stomata swell up when water is full and guard cell open that's why opening of stomata. When water release from stomata then guard cell shrink that's why closing of stomata.

Test: Nutrition In Plants - Question 2
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The stomatal pore opens when:

Detailed Solution for Test: Nutrition In Plants - Question 2

The swelling of guard cells due to absorption of water causes opening of stomatal pores while shrinking of guard cells closes the pores. Opening and closing of stomata occurs due to turgor changes in guard cells. When guard cells are turgid, stomatal pore is open while in flaccid conditions, the stomatal aperture.

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Test: Nutrition In Plants - Question 3
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During photosynthesis, light energy from the sun is absorbed by:

Detailed Solution for Test: Nutrition In Plants - Question 3

Chlorophyll is a green coloured photosynthesis pigment occurs in chloroplast. It is site where photosynthesis take place. It traps solar energy and changes it into chemical energy.

Test: Nutrition In Plants - Question 4
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A minute pore which helps in exchange of gases is:
Detailed Solution for Test: Nutrition In Plants - Question 4

The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma).
The pores through which leaves exchange gases are STOMATA

Test: Nutrition In Plants - Question 5
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Chlorophyll is found in oval-shaped structures called as
Detailed Solution for Test: Nutrition In Plants - Question 5

The 'chlorophyll' is found in the oval shaped structures known as Chloroplast.

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