It is a lovely summer's day in John's greenhouse. Various factors affect the rate of photosynthesis: • light intensity • temperature • carbon dioxide concentration Which one of the factors above is likely to limit the rate of photosynthesis of John's tomato plants? Explain your answer

Light intensity

Explanation:

John’s greenhouse for sure wasn’t open. It would have consisted of a closed system. The most important aspect of photosynthesis is the reaction between the light and the chlorophyll( green pigment) of the plant.

The closed system is more likely to permit a reduced amount of light intensity which is more likely to affect the tomato plant’s photosynthetic process.

light intensity,temperature and Carbondioxide concentration can together affects the tomato plants growth

Explanation:

Photosynthesis is the process whereby green plants produce there own food. It is affected by a number of factors;

Light intensity- Light energy from sunlight is what is trapped by plant and used in the production of ATP( adenosine triphosphate) and NADP which are energy that is available for photosynthesis. when light intensity is low it will affect the rate of photosynthesis in tomato plants

2. Cabondioxide concentration- Co2 is a reactant in photosynthesis and a low concentration will reduce the rate of photosynthesis in the tomato plants

3. Temperature- plants stomach closes and open in response to temperature changes. At very high temperature stomata is always closes to conserve water and this reduces the in flow of carbondioxide hence its also an important factor in the growth of the tomato plants.

the correct answer is b