Which of the following is true about photosynthesis?
A. It is an exothermic reaction.
B. It is an endothermic reaction.
C. It produces carbon dioxide.
D. It occurs in animals.
Here’s the answers for the Chemical reactions Practice test
1. B
2. A
3. D
4. C
5. D
6. A
7. C
8. B
9. D (for some it’s C?? but for me it was D)
10. C
11. C
12. C
13. A
14. B
15. C
thank you my hero academia!
C. or A, because it does absorb heat, and it does produce carbon dioxide. And this process only occurs in plants, not animals.
I was the for some 9. was C for me but IDC because I didnt fail he is 99.1% CORRECT
To determine which of the given statements is true about photosynthesis, we can go through each option and eliminate the incorrect ones.
Option A states that photosynthesis is an exothermic reaction. To determine if this is true, we need to recall the definition of an exothermic reaction. Exothermic reactions release energy in the form of heat, light, or sound. In the case of photosynthesis, it is a process where plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (a form of energy) and oxygen. Since energy is being produced, we can conclude that photosynthesis is indeed an exothermic reaction. So, Option A is true.
Option B states that photosynthesis is an endothermic reaction. An endothermic reaction, in contrast to an exothermic reaction, absorbs heat or energy from its surroundings. However, as we have determined in Option A, photosynthesis actually releases energy, making Option B false.
Option C states that photosynthesis produces carbon dioxide. This statement is incorrect. During the process of photosynthesis, plants actually use carbon dioxide from the atmosphere, along with water and sunlight, to produce glucose and oxygen. Therefore, Option C is false.
Option D states that photosynthesis occurs in animals. This statement is also incorrect. Photosynthesis is a process that occurs in plants, algae, and some bacteria, but not in animals. Animals do not possess the necessary chlorophyll-containing organelles, such as chloroplasts, to carry out photosynthesis. Thus, Option D is false.
In conclusion, the correct statement about photosynthesis is:
A. It is an exothermic reaction.