Carbon dioxide produced through cellular metabolism diffuses from the ______ into the ______.

• A. nucleus; endoplasmic reticulum
• B. mitochondria; cytoplasm
• C. ribosome; Golgi apparatus
• D. cytoplasm; mitochondria

Answer: (B)

Verified step by step guidance

1. Step 1: Begin by understanding the context of the problem. Cellular metabolism refers to the chemical processes that occur within cells to maintain life, including the production of carbon dioxide as a byproduct of energy generation.
2. Step 2: Recall that carbon dioxide is produced during cellular respiration, specifically in the mitochondria, where glucose is broken down to generate ATP (adenosine triphosphate).
3. Step 3: Understand the diffusion process. Carbon dioxide moves from areas of higher concentration to areas of lower concentration. In this case, it diffuses from the mitochondria, where it is produced, into the cytoplasm.
4. Step 4: Eliminate incorrect options by considering the roles of the organelles mentioned. For example, the nucleus and endoplasmic reticulum are not directly involved in carbon dioxide production or diffusion during cellular respiration.
5. Step 5: Confirm the correct answer by matching the organelles involved in carbon dioxide production and diffusion. The correct answer is mitochondria (site of production) and cytoplasm (site of diffusion).