in which way are photosynthesis and cellular respiration different
A. cellular respiration stores atp while photosynthesis releases atp
b.cellular respiration produces oxygen while photosynthesis uses oxygen
c. photosynthesis releases energy while cellular respiration stores energy,
d. photosynthesis used carbon dioxide while cellular respiration produces/gives off carbon dioxide
The correct answer is:
C. Photosynthesis releases energy while cellular respiration stores energy.
To understand the difference between photosynthesis and cellular respiration, let's break down both processes:
1. Photosynthesis:
Photosynthesis is a process that occurs in plants, algae, and some bacteria. During photosynthesis, energy from sunlight is used to convert carbon dioxide and water into glucose (a simple sugar) and oxygen. This process takes place in the chloroplasts of plant cells. The released oxygen is then released into the atmosphere. Essentially, photosynthesis converts light energy into chemical energy stored in glucose molecules.
2. Cellular Respiration:
Cellular respiration is a process that occurs in all living organisms, including plants. It is the process through which cells convert glucose and oxygen into energy, carbon dioxide, and water. Cellular respiration takes place in the mitochondria of cells, where glucose is broken down to release energy (in the form of ATP) and carbon dioxide. The released energy is used by cells for various functions.
Now, let's consider the options provided:
A. Cellular respiration stores ATP while photosynthesis releases ATP:
This option is incorrect. Photosynthesis does not release ATP; instead, it stores energy in the form of glucose molecules. Cellular respiration, on the other hand, produces ATP, which is the energy currency of the cell.
B. Cellular respiration produces oxygen while photosynthesis uses oxygen:
This option is also incorrect. Photosynthesis produces oxygen as a byproduct, while cellular respiration uses oxygen as a reactant.
C. Photosynthesis releases energy while cellular respiration stores energy:
This is the correct answer. Photosynthesis captures light energy and converts it into chemical energy stored in glucose molecules. In contrast, cellular respiration breaks down glucose molecules and releases the stored energy in the form of ATP.
D. Photosynthesis uses carbon dioxide while cellular respiration produces/gives off carbon dioxide:
This option is partially correct. Photosynthesis uses carbon dioxide as a reactant to produce glucose, while cellular respiration produces carbon dioxide as a waste product when glucose is broken down for energy.
Therefore, the key difference between photosynthesis and cellular respiration is that photosynthesis is an energy-capturing process that stores energy in glucose molecules, while cellular respiration is an energy-releasing process that converts glucose into ATP (usable energy).