Question

Set and demonestrate an experment for how to approve facores affecting photosynthesis.

Answer 1

Answer:

The rate of photosynthesis is usually limited by two main environmental conditions:

(i) Shortage of light (usually lack of sunlight) slows photosynthesis - since the greater the light intensity, the greater the rate of photosynthesis.

(ii) Low temperature, slows down the rate of photosynthesis - a general rule for all chemical reactions

• A combination of both (i) and (ii) will cause very different rates between photosynthesis in winter (less sunlight time, less intense light, slower) compared to summer (more sunlight time, more intense light, faster).
• At night, light is the limiting factor, in winter its usually the temperature in daylight.
• If the temperature gets too high photosynthesis will slow down due to enzyme damage.
• But there are other factors too.

(iii) A shortage of carbon dioxide will also slow down the rate of photosynthesis but you can artificially increase it by pumping CO2 into a greenhouse structure.

• If there is sufficient light and the temperature not too low, the ambient carbon dioxide concentration becomes the limiting factor.

(iv) Under some circumstances the essential green pigment chlorophyll might be the limiting factor too.

• Lack of chlorophyll/chloroplasts in the plant cells reduce the plant's capacity to photosynthesise.
• Stressed or damaged plants may turn pale yellow or develop spots from a fungus, bacteria or virus.
• Plants maybe affected by disease eg halo blight, tobacco mosaic virus, poor nutrition - lack of vital minerals.

• Also (v) lack of water denatures cells and plants droop, reducing photosynthesis, and eventually die.
• Any of these factors can cause damage to chloroplasts or the cell cannot make enough chlorophyll.

Therefore the plant cell capacity to absorb sunlight is reduced weakening the plants growth and development.

hope it helps u..........

Answer 2

The various factors affecting photosynthesis.

Explanation:

We have learned that,

• light intensity,
• carbon dioxide concentration and
• temperature

are the three main factors affecting photosynthesis. Photosynthesis is a process by which plants prepare their own food in the presence of water, chlorophyll, sunlight and CO2. This process occurs mainly in the leaves of the plant. The stems also perform photosynthesis in some other plants. Photosynthesis occurs in the chloroplast cells in the leaves. There are several factors that have an impact on photosynthesis-its rate and efficiency. Let's look at the factors that affect photosynthesis and see how they affect photosynthesis.  Changes in temperatures, low quality of air and lack of sunshine all affects photosynthesis.

To know more:

a student has sets up an apparatus to show that co2 is released ...

https://brainly.in/question/8766253