Question

what do you think would happen if plants do not do photosynthesis​

Answer 1

Answer:

then all organisms will die as they are producers of food.

Answer 2

Answer:

If there was no photosynthesis, plants and animals likely could not exist. In addition the atmosphere would have very little oxygen because photosynthesis releases a large amount of oxygen into the air. ... Otherwise, the Earth would be a pretty barren lifeless place without photosynthesis.

Explanation:

✯LET'S EXPLORE MORE

☆What is photosynthesis

Phōs means “light” and synthesis means, “combining together.” This means “combining together with the help of light.”

Photosynthesis also applies to other organisms besides green plants. These include several prokaryotes such as cyanobacteria, purple bacteria and green sulfur bacteria. These organisms exhibit photosynthesis just like green plants

✯Photosynthesis process

• During the process of photosynthesis, carbon dioxide enters through the stomata, water is absorbed by the root hairs from the soil and is carried to the leaves through the xylem vessels. Chlorophyll absorbs the light energy from the sun to split water molecules into hydrogen and oxygen.

• The hydrogen from water molecules and carbon dioxide absorbed from the air are used in the production of glucose. Furthermore, oxygen is liberated out into the atmosphere through the leaves as a waste product.

• Glucose is a source of food for plants that provide energy for growth and development, while the rest is stored in the roots, leaves and fruits, for their later use.

• Pigments are other fundamental cellular components of photosynthesis. They are the molecules that impart colour and they absorb light at some specific wavelength and reflect back the unabsorbed light. All green plants mainly contain chlorophyll a, chlorophyll b and carotenoids which are present in the thylakoids of chloroplasts. It is primarily used to capture light energy. Chlorophyll-a is the main pigment.

☆The process of photosynthesis occurs in two stages:

• Light-dependent reaction or light reaction
• Light independent reaction or dark reaction

✯photosynthesis Equation

$6CO2    +   6H2O  —>  C6H12O6  + 6O2$

✯Photosynthetic Pigments

There are four different types of pigments present in leaves:

• Chlorophyll a
• Chlorophyll b
• Xanthophylls
• Carotenoids

✯Factors Affecting Photosynthesis

Photosynthesis process requires several factors such as:

☆Light Intensity:

Increased light intensity results in a higher rate of photosynthesis. On the other hand, low light intensity results in a lower rate of photosynthesis.

☆The concentration of CO2:

Higher concentration of carbon dioxide helps in increasing the rate of photosynthesis. Usually, carbon dioxide in the range of 300 – 400 PPM is adequate for photosynthesis.

☆Temperature:

For efficient execution of photosynthesis, it is important to have a temperature range between 25° to 35° C.

☆Water:

As water is an important factor in photosynthesis, its deficiency can lead to problems in the intake of carbon dioxide. The scarcity of water leads to the refusal of stomatal opening to retain the amount of water they have stored inside.

☆Pollution:

Industrial pollutants and other particulates may settle on the leaf surface. This can block the pores of stomata which makes it difficult to take in carbon dioxide.