Photosynthesis and Factors Affecting its Rate in Plants

Photosynthesis and Factors Affecting its Rate in Plants

Assessment

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Biology, Physics, Science, Chemistry

University

Hard

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The video explains photosynthesis, an endothermic reaction where plants convert light energy into glucose and oxygen. It discusses factors affecting the rate of photosynthesis, such as light intensity, carbon dioxide concentration, and temperature. The role of chlorophyll in absorbing light is highlighted, and the video details how plants use glucose for energy, storage, and growth, including conversion into starch, fats, oils, cellulose, and proteins.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of light in the process of photosynthesis?

To provide heat to the plant

To convert glucose into starch

To absorb carbon dioxide from the atmosphere

To transfer energy to chloroplasts for chemical reactions

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does increasing light intensity affect the rate of photosynthesis initially?

It increases the rate

It has no effect on the rate

It stops the process completely

It decreases the rate

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the rate of photosynthesis when the temperature exceeds the optimal level?

The rate remains constant

The rate increases indefinitely

The rate increases slightly

The rate decreases due to enzyme damage

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which part of the plant cell is light energy absorbed for photosynthesis?

Nucleus

Chloroplasts

Cell wall

Mitochondria

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the ways glucose is used by plants after photosynthesis?

It is released into the atmosphere

It is used to make proteins

It is converted into oxygen

It is used to absorb more light