Test: Nutrition In Plants


5 Questions MCQ Test General Science(Prelims) by IRS Divey Sethi | Test: Nutrition In Plants


Description
This mock test of Test: Nutrition In Plants for UPSC helps you for every UPSC entrance exam. This contains 5 Multiple Choice Questions for UPSC Test: Nutrition In Plants (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Nutrition In Plants quiz give you a good mix of easy questions and tough questions. UPSC students definitely take this Test: Nutrition In Plants exercise for a better result in the exam. You can find other Test: Nutrition In Plants extra questions, long questions & short questions for UPSC on EduRev as well by searching above.
QUESTION: 1

The opening and closing of stomata is controlled by:

Solution:

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.

QUESTION: 2

The stomatal pore opens when:

Solution:

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.

QUESTION: 3

During photosynthesis, light energy from the sun is absorbed by:

Solution:

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.

QUESTION: 4

A minute pore which helps in exchange of gases is:

Solution:

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

QUESTION: 5

Chlorophyll is found in oval-shaped structures called as

Solution:

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

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