Question

what is photosynthsis

Answer 1

Answer:

Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis is necessary for life on Earth. ... Green plants use this light energy to change water and carbon dioxide into oxygen and nutrients called sugars.

Answer 2

${\frak{\red{Photosynthesis:}}}$

${ }$

• Photosynthesis definition states that the process exclusively takes place in the chloroplasts through photosynthetic pigments such as chlorophyll a, chlorophyll b, carotene and xanthophyll. All green plants and a few other autotrophic organisms utilize photosynthesis to synthesize nutrients by using carbon dioxide, water and sunlight. The by-product of the photosynthesis process is oxygen.

${ }$

${\frak{\red{Factors\: Affecting\:Photosynthesis:}}}$

${ }$

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.

${ }$