BIO 1406/07 W/CONNECT/LM NEW >IC<
BIO 1406/07 W/CONNECT/LM NEW >IC<
16th Edition
ISBN: 9781260075762
Author: Raven
Publisher: MCG CUSTOM
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Chapter 7, Problem 1U
Summary Introduction

Introduction:

Autotrophs are the organisms that make their own food by using sunlight, carbon dioxide and water by the process of photosynthesis. Photosynthesis is the process by which autotrophic organisms use sunlight energy to make sugar and oxygen gas from carbon dioxide and water.

Expert Solution & Answer
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Answer to Problem 1U

Correct answer:

Autotrophs are the organisms that produce their own food by the process of the photosynthesis. Therefore, option d. is correct.

Explanation of Solution

Reason for correct answer:

Photosynthesis is the process in which the light energy is converted into the chemical energy. Autotrophs are those organisms that produce their own food by the help of the photosynthesis process.

Option d. is given as “does both a and b”.

As, “autotrophs are the organisms that are able to convert the light energy into the chemical energy and harness energy from organic sources,” is the right answer.

Hence, option d. is correct.

Reason for the incorrect statements:

Option a. is given as “extracts energy from organic sources”.

Autotrophs extracts energy from organic sources. It is not the only process being performed by the autotrophs. So, it is a wrong answer.

Option b. is given as “converts energy from sunlight into chemical energy”.

Autotrophs produce their own energy from the process of photosynthesis. It is not the only process being performed by the autotrophs. So, it is a wrong answer.

Option c. is given as “relies on the energy produced by other organisms as an energy source”.

Autotroph produces their own good by using energy from sunlight and does not rely on other organisms for energy requirements. So, it is a wrong answer.

Hence, options a, b, and c are incorrect.

Conclusion

Autotrophs are the self-nourishing organisms such as green plants. Autotrophs use photosynthesis process to harness energy from the sunlight to produce oxygen and sugar molecules.

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