HORTICULTURE

HORTICULTURE SCIENCE

CROP PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The rate at which photosynthesis is carried out depends on
A
the amount of fertilizer in the water
B
the amount of oxygen in the atmostphere
C
the light intensity, gtemperature, and concentration of carbon dioxide
D
the amount of respiration carried on durring the daylight hours
Explanation: 

Detailed explanation-1: -As light intensity increases – until a point – the amount of sugars increases and thus, more energy is available for plant growth and maintenance. However, the concentration of CO2 and temperature also influ-ence photosynthesis in a poten-tially dramatic way.

Detailed explanation-2: -As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis. So this means more carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake.

There is 1 question to complete.