The diagram below shows a leaf that was covered by a piece of black paper for a period of 3 days. After 3 days, the paper was removed. On testing, it was found that the area under the black paper tested negative for starch and the rest tested positive for starch. What was the experiment trying to test?
A. If plants make their own food
B. If light is required for plants to make food
C. If plants can respire in the absence of light
D. If plants can survive even in the absence of light
Answer:B
The diagram below shows a leaf that was covered by a piece of black paper for a period of 3 days. After 3 days, the paper was removed. On testing, it was found that the area under the black paper tested negative for starch and the rest tested positive for starch. What was the experiment trying to test?
A. If plants make their own food B. If light is required for plants to make food C. If plants can respire in the absence of light D. If plants can survive even in the absence of light