If the number of oxygen bubbles decreases while measuring the rate of photosynthesis, what is the most suitable conclusion?
Answer and explanation
Correct answer: The rate of photosynthesis is decreasing
During photosynthesis, oxygen is released when water is split in the light-dependent reactions. Under comparable experimental conditions, the number of visible oxygen bubbles is used as an approximate indicator of oxygen production and therefore photosynthetic rate. Fewer bubbles suggest a lower rate, so option A is correct. The observation does not prove that respiration has stopped, change the plant’s nutritional mode, or show that roots make food.
Frequently asked questions
What is the correct answer to this question?
The rate of photosynthesis is decreasing
Why is this the correct answer?
During photosynthesis, oxygen is released when water is split in the light-dependent reactions. Under comparable experimental conditions, the number of visible oxygen bubbles is used as an approximate indicator of oxygen production and therefore photosynthetic rate. Fewer bubbles suggest a lower rate, so option A is correct. The observation does not prove that respiration has stopped, change the plant’s nutritional mode, or show that roots make food.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
