Which of the following processes takes place in the cytoplasm?

1. the kreb's cycle
2. anaerobic cellular respiration
3. aerobic cellular respiration
4. photosynthesis

1 answer

In the cytoplasm, the following processes take place:

  1. Anaerobic cellular respiration - This process occurs in the cytoplasm where glucose is broken down without the use of oxygen to produce energy, such as in fermentation.

  2. Photosynthesis - While most of photosynthesis occurs in the chloroplasts, specifically in the light-dependent and light-independent (Calvin cycle) reactions, some initial reactions (like the splitting of water and formation of ATP) take place in the stroma of the chloroplast, which is located in the cytoplasm of plant cells.

However, the Kreb's cycle (also known as the citric acid cycle) and aerobic cellular respiration primarily occur in the mitochondria, not in the cytoplasm.

So, the correct answer is:

  • 2. anaerobic cellular respiration (definitely takes place in the cytoplasm)
  • 4. photosynthesis (if considering the overall process in plant cells, although most specific reactions occur in chloroplasts)

1 and 3 do not take place in the cytoplasm.