Which of the following is true about photosythesis?
A. It is an exothermic reaction
B. It is an endothermic reaction
C. It produces carbon dioxide
D. It occurs in animals
Is the answer C?
Thank you
I think you are right.
No. Both C and D are incorrect.
"Photosynthesis is a process used by plants to convert light energy, normally from the sun, into chemical energy that can be later released to fuel the plant's activities."
Please look up both exothermic reactions and endothermic reactions. Then, please post what you think is the answer out of the two.
I hope this helps! :)
the process in which carbon dioxide and water are changed into carbohydrates (sugars) and oxygen This is what my paper says, that's why I went with C, endothermic reaction a reaction that absorbs energy
exothermic reactiona reaction that releases energy, usually in the form of heat
B? maybe
Yes, B is correct.
Photosynthesis is a "endothermic reaction". "The source of the energy for the formation of glucose is light (radiant energy), usually from the sun." This makes the rest of the process possible.
Quote's are from ~ Chem.Wisc
The correct answer is B. It is an endothermic reaction.
To understand why photosynthesis is an endothermic reaction, let me explain the process of photosynthesis first. Photosynthesis is a chemical process that occurs in plants, algae, and some bacteria. It converts sunlight, water, and carbon dioxide into glucose (a sugar molecule) and oxygen.
During photosynthesis, plants absorb sunlight through a pigment called chlorophyll, which is located in their leaves. The energy from the sunlight is used to combine water molecules (H2O) from the roots with carbon dioxide (CO2) from the air to produce glucose (C6H12O6) and oxygen (O2).
The reaction can be represented as follows:
6 CO2 + 6 H2O + energy (sunlight) → C6H12O6 + 6 O2
Now, let's come back to the original question. The options given are:
A. It is an exothermic reaction
B. It is an endothermic reaction
C. It produces carbon dioxide
D. It occurs in animals
Option A states that photosynthesis is an exothermic reaction. An exothermic reaction releases heat or energy, which is not true in the case of photosynthesis. In photosynthesis, energy (sunlight) is absorbed to drive the reaction, making it an endothermic process. Therefore, option A is incorrect.
Option B states that it is an endothermic reaction. As explained earlier, photosynthesis requires energy (sunlight) to occur, making it an endothermic reaction. Therefore, option B is correct.
Option C states that photosynthesis produces carbon dioxide, which is incorrect. Photosynthesis actually uses carbon dioxide and converts it into glucose during the process. Therefore, option C is incorrect.
Option D states that photosynthesis occurs in animals, which is incorrect. Photosynthesis is a process that occurs only in plants, algae, and some bacteria, as they have chlorophyll to capture sunlight energy. Therefore, option D is incorrect.
In summary, the correct answer is B. Photosynthesis is an endothermic reaction.