GED Science Practice 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which of the following is NOT a function of chloroplasts?

Synthesis of sugars

Production of oxygen

Cellular respiration

Chloroplasts play a crucial role in the process of photosynthesis, where they convert light energy into chemical energy by synthesizing sugars from carbon dioxide and water. During this process, oxygen is also produced as a byproduct. Therefore, the functions listed as the synthesis of sugars, production of oxygen, and photosynthesis all closely relate to the activities occurring within chloroplasts.

Cellular respiration, on the other hand, is a process that primarily occurs in the mitochondria of cells. This process involves breaking down sugars to release energy, resulting in the consumption of oxygen and the production of carbon dioxide. Since chloroplasts are not responsible for this process, identifying cellular respiration as outside the functions of chloroplasts is correct.

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Photosynthesis

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