3.
if the rate of respiration became more than the the rate of photosynthesis plant will
a. continue to live but will not able to store foods
b. be killed instantly
c. grow more vigorously because more energy will be available.
d. stop growing and gradually die of starvation.
4. the correct order of step in nutrition in human beings is .
a. ingestion digestion assimilation absorption egestion
b. ingestion digestion absorption assmilation egestion
c. ingestion absorption digestion egestion assimilation d. ingestion assmilation absorption digestion egestion.
Answers
Answer:
Intensity: Photosynthesis begins at low intensities of light and increases till it is maximum at the brightest time of the day. The amount of light required varies for different plants. Photosynthesis uses maximum up to 1.5 % light in the process and so light is generally not a limiting factor at high intensity. However, the light becomes a limiting factor in low intensity because no matter how much water or CO2 is present, without light photosynthesis cannot occur. At high intensities, the temperature of the plant increases which leads to increased transpiration in the plant. This leads to the closing of the stomata which leads to a reduced CO2 intake. Thus, leading to a reduction and finally stoppage of photosynthesis. Therefore, excessive light inhibits photosynthesis.
Quality: Experiments conducted by Engelmann prove that the chlorophyll most effectively absorbs red and blue wavelengths from the entire spectrum of light. Thus, maximum photosynthesis occurs when the plant is exposed to the light of these wavelengths.
Duration: The longer the plant is exposed to light, the longer the process of photosynthesis will continue. As long as the temperature of the plant remains balanced, photosynthesis will occur
Answer:
Explanation: