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Test: Nutrition in Plants- 1


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10 Questions MCQ Test Science & Technology for UPSC CSE | Test: Nutrition in Plants- 1

Test: Nutrition in Plants- 1 for UPSC 2022 is part of Science & Technology for UPSC CSE preparation. The Test: Nutrition in Plants- 1 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Nutrition in Plants- 1 MCQs are made for UPSC 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Nutrition in Plants- 1 below.
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Test: Nutrition in Plants- 1 - Question 1

Plants make their own food by the process of:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 1

Plants make their food by a process called Photosynthesis. Plants convert carbon dioxide and water into energy (food) in the presence of sunlight.

Test: Nutrition in Plants- 1 - Question 2

The green colour of plants is due to the presence of:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 2

The green colour of plants is due to the presence of chlorophyll inside the chloroplast. Chlorophyll is essential for photosynthesis.

 

Test: Nutrition in Plants- 1 - Question 3

Which one of the following element has not been proven to be essential in plants?

Detailed Solution for Test: Nutrition in Plants- 1 - Question 3

Sodium is not an essential element for plants but can be used in small quantities, similar to micronutrients, to aid in the metabolism and synthesis of chlorophyll.

Test: Nutrition in Plants- 1 - Question 4

 Pitcher plant traps insects because it:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 4
  • Pitcher plant grows in the soil which is deficient in Nitrogen, for nitrogen sources it traps and digests the insects.
  • It carries out photosynthesis to produce carbohydrates.
Test: Nutrition in Plants- 1 - Question 5

Which of the following component of food provide us the majority of energy?

Detailed Solution for Test: Nutrition in Plants- 1 - Question 5

Option A: Carbohydrates provide us with the majority of our energy.
Option B: Protein is essential for bodybuilding.
Options C and D: Vitamins and minerals protect us from diseases.

Thus, option A is correct.

Test: Nutrition in Plants- 1 - Question 6

In non-green plants and animals mode of nutrition is:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 6

The process by which living organism obtains their food is called the mode of nutrition.
In non-green plants and animals mode of nutrition is heterotrophic as they obtain food from other plants or animals.

Test: Nutrition in Plants- 1 - Question 7

The bacterium which provides nitrogen to the leguminous plants is: 

Detailed Solution for Test: Nutrition in Plants- 1 - Question 7

The plants are not able to take nitrogen directly from the air so the rhizobium converts nitrogen into ammonia for plants.

Test: Nutrition in Plants- 1 - Question 8

Which of the following raw material is available in the air for photosynthesis?

Detailed Solution for Test: Nutrition in Plants- 1 - Question 8

Plants prepare their own food by using carbon dioxide and water to produce carbohydrates and oxygen.

Test: Nutrition in Plants- 1 - Question 9

The small pores present on the leaves are called:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 9

Stomata are the small pores present on the leaves of the plants. It helps the plant in the exchange of gasses and transpiration.

Test: Nutrition in Plants- 1 - Question 10

The ultimate source of energy for all living organisms is:

Detailed Solution for Test: Nutrition in Plants- 1 - Question 10
  • The Sun is the major source of energy for organisms and the ecosystems of which they are a part.
  • Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.
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