The ___ from photosynthesis is a reactant for glucose metabolism.
A. H2O
B. ATP
C. lactic acid
D. CO2
E. O2
Thanks.
02
To determine the correct answer, let's review what is involved in photosynthesis and glucose metabolism.
Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into glucose and oxygen. This process occurs in the chloroplasts of plant cells.
On the other hand, glucose metabolism is the process by which living organisms break down glucose molecules to release energy. This process occurs in the cytoplasm and mitochondria of cells.
To find the reactant from photosynthesis that is involved in glucose metabolism, we need to identify a molecule that is produced in photosynthesis and then used as a reactant for glucose metabolism.
Let's go through the answer choices:
A. H2O (water): Water is one of the reactants in photosynthesis, but it is not directly involved in glucose metabolism. Water is split during photosynthesis to release oxygen, but the oxygen is not used in glucose metabolism.
B. ATP (adenosine triphosphate): ATP is an energy molecule that is produced during glucose metabolism, not during photosynthesis. It serves as the primary energy source for cellular processes.
C. Lactic acid: Lactic acid is a product of anaerobic cellular respiration, which occurs when there is insufficient oxygen available for cellular energy production. It is not directly involved in glucose metabolism.
D. CO2 (carbon dioxide): Carbon dioxide is one of the reactants in photosynthesis, but it is not a direct reactant in glucose metabolism. It is produced during glucose metabolism as a waste product.
E. O2 (oxygen): Oxygen is the correct answer. In photosynthesis, oxygen is produced as a byproduct when water is split. This oxygen is released into the atmosphere. In glucose metabolism, oxygen is used as a reactant to break down glucose molecules and release energy through a process called cellular respiration.
Therefore, the correct answer is E. O2.
In summary, the molecule from photosynthesis that acts as a reactant for glucose metabolism is oxygen (O2).