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Test: Nutrition in Plants - Class 7 MCQ


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20 Questions MCQ Test Class 7 Oxford Science: Chapter Notes, Worksheets & Tests - Test: Nutrition in Plants

Test: Nutrition in Plants for Class 7 2024 is part of Class 7 Oxford Science: Chapter Notes, Worksheets & Tests preparation. The Test: Nutrition in Plants questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Nutrition in Plants MCQs are made for Class 7 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

What is nutrition?

Detailed Solution for Test: Nutrition in Plants - Question 1

The process of obtaining food by living organisms. Nutrition refers to the process of obtaining food and utilizing it for growth and development.

Test: Nutrition in Plants - Question 2

What is autotrophic nutrition?

Detailed Solution for Test: Nutrition in Plants - Question 2

The process of producing food by oneself. Autotrophs are organisms that can produce their own food through photosynthesis.

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Test: Nutrition in Plants - Question 3

What is photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 3

The process of producing food by oneself. Photosynthesis is the process by which autotrophic organisms produce their own food using sunlight, carbon dioxide, and water.

Test: Nutrition in Plants - Question 4

What is the process of photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 4

Conversion of sunlight into chemical energy. Photosynthesis is the process of converting sunlight into chemical energy in the form of glucose.

Test: Nutrition in Plants - Question 5

Why is photosynthesis important?

Detailed Solution for Test: Nutrition in Plants - Question 5

Photosynthesis is important as it produces oxygen, provides energy, and helps in the growth and development of plants.

Test: Nutrition in Plants - Question 6

What are the necessary conditions for photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 6

Sunlight, carbon dioxide, water, and chlorophyll. These are the necessary conditions for photosynthesis to occur.

Test: Nutrition in Plants - Question 7

What is heterotrophic nutrition?

Detailed Solution for Test: Nutrition in Plants - Question 7

Heterotrophs are organisms that cannot produce their own food and rely on other organisms for nutrition.

Test: Nutrition in Plants - Question 8

What are parasitic plants?

Detailed Solution for Test: Nutrition in Plants - Question 8

Plants that obtain food from other plants. Parasitic plants obtain their nutrition by attaching themselves to the host plant and obtaining nutrients from it.

Test: Nutrition in Plants - Question 9

What are saprophytic plants?

Detailed Solution for Test: Nutrition in Plants - Question 9

Plants that obtain food from dead organic matter. Saprophytic plants obtain their nutrition from dead and decaying organic matter.

Test: Nutrition in Plants - Question 10

What are insectivorous plants?

Detailed Solution for Test: Nutrition in Plants - Question 10

Plants that obtain food from animals. Insectivorous plants obtain their nutrition by trapping and digesting insects and other small organisms.

Test: Nutrition in Plants - Question 11

What are symbiotic plants?

Detailed Solution for Test: Nutrition in Plants - Question 11

Plants that obtain food from other plants. Symbiotic plants obtain their nutrition by forming a symbiotic relationship with other plants and obtaining nutrients from them.

Test: Nutrition in Plants - Question 12

Which of the following is not a necessary condition for photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 12

Nitrogen is not a necessary condition for photosynthesis. The necessary conditions for photosynthesis are sunlight, carbon dioxide, water, and chlorophyll.

Test: Nutrition in Plants - Question 13

What is the product of photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 13

Oxygen is the product of photosynthesis. During photosynthesis, plants produce oxygen and glucose from carbon dioxide and water.

Test: Nutrition in Plants - Question 14

Which of the following is an autotrophic organism?

Detailed Solution for Test: Nutrition in Plants - Question 14

A plant is an autotrophic organism as it can produce its own food through photosynthesis.

Test: Nutrition in Plants - Question 15

Which of the following is a heterotrophic organism?

Detailed Solution for Test: Nutrition in Plants - Question 15

A lion is a heterotrophic organism as it cannot produce its own food and relies on other organisms for nutrition.

Test: Nutrition in Plants - Question 16

What is the role of chlorophyll in photosynthesis?

Detailed Solution for Test: Nutrition in Plants - Question 16

Chlorophyll absorbs sunlight during photosynthesis, which is used to produce glucose and oxygen.

Test: Nutrition in Plants - Question 17

Which of the following is a parasitic plant?

Detailed Solution for Test: Nutrition in Plants - Question 17

The correct option is B Dodder plant
Dodder plant, which belongs to the genus Cuscuta is a yellow, orange, or red (rarely green) parasitic plants. After dodder attaches itself to a plant, it wraps itself around it. If the host contains food beneficial to dodder, the dodder produces haustoria that insert themselves into the vascular system of the host. The original root of the dodder in the soil then dies.

So, the correct answer is 'Dodder plant'.

Test: Nutrition in Plants - Question 18

Which of the following is a saprophytic plant?

Detailed Solution for Test: Nutrition in Plants - Question 18

Mushroom is a saprophytic plant that obtains its nutrition from dead and decaying organic matter.

Test: Nutrition in Plants - Question 19

Which of the following is an insectivorous plant?

Detailed Solution for Test: Nutrition in Plants - Question 19

Venus flytrap is an insectivorous plant that traps and digests insects for nutrition.

Test: Nutrition in Plants - Question 20

Which of the following is a symbiotic plant?

Detailed Solution for Test: Nutrition in Plants - Question 20

In lichens, the interaction between algae and fungi is a symbiotic relationship. Algae feed fungi that lack chlorophyll pigments. Fungi, on the other hand, help algae by providing protection and aiding in water absorption. No one is injured in this form of connection, and both parties benefit from it.

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