Question

unit 3 preteset
3.1.3-12.g which statement best explains the role of atp in cellular respiration?
○ atp stores energy released when glucose bonds are broken and provides energy for cellular processes.
○ atp captures sunlight energy and converts it directly into glucose.
○ atp is used only in plant cells to transport oxygen to mitochondria.
○ atp releases carbon dioxide and water as its primary energy source.

Explanation:

• Option 1: In cellular respiration, glucose is broken down. The energy released during this process is stored in ATP. ATP then provides energy for various cellular processes. This is correct as it aligns with the role of ATP in cellular respiration.
• Option 2: ATP does not capture sunlight energy and convert it into glucose. Photosynthesis (not cellular respiration) is the process where plants (using chlorophyll) capture sunlight energy and convert it (along with carbon dioxide and water) into glucose. So this option is incorrect.
• Option 3: ATP is used in both plant and animal cells (not just plant cells) for energy - related processes. Also, its main role is not transporting oxygen to mitochondria. Oxygen is transported to mitochondria through diffusion (in a concentration - gradient - driven process). So this option is incorrect.
• Option 4: Carbon dioxide and water are the by - products of cellular respiration (when glucose is completely oxidized). ATP does not use them as a primary energy source. ATP stores energy from the breakdown of glucose (and other organic molecules). So this option is incorrect.

Answer:

ATP stores energy released when glucose bonds are broken and provides energy for cellular processes.