Question

what is photosynthetic ​

Answer 1

Answer:

Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive. Carbon dioxide, water and light are all needed for photosynthesis to take place. Photosynthesis happens in the leaves of a plant.

Explanation:

i hope it helps

plss mark me as brainliest

Answer 2

$\dag \; \bf{\green{\underline{\underline{\bf{Photosynthesis \::}}}}}$

$\underline {\rule{261}{2}}$

The conversion of solar/light energy into chemical energy by green plants, called photosynthesis.

What actually happens during photosynthesis:-

• Absorption of light energy by chlorophyll.
• Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.
• Reduction of carbon dioxide to carbohydrate.

★ Reaction takes place during photosynthesis:-

$\boxed{\dag \ \sf 6C \sf {O_2 + 12 \sf H_2 O \dfrac{Chlorophyll}{Sunlight}> \sf C_6 \sf H_{12} \sf O_6 + \sf O_2 + 6 \sf H_2 O }}$

$\bullet \; \large\bold{\underline{\underline{\sf{\red{ Mechanism \; of \; photosynthesis:-}}}}}$

Photosynthesis is a process which completed in two steps :-

• Light reaction.
• Dark reaction.

:$\implies$ Light reaction:- This step is directly depends upon presence of sunlight including photolysis of water. Due to photolysis of water releasing electrons carry toward another electron acceptor and form ATP and and NADPH (nicotinamide Adenine Dinucleotide Phosphate Hydrogenase ).

:$\implies$ Dark Reaction:- This Step perform in in absence of light but it does not mean that it is not depend on light. This step form a glucose molecule by fixing $\sf{ C \sf O_2 }$ in the presence of RUBP ( Ribolose Biphosphate). This step require energy which is formed in light reaction.

$\bullet \; \large\bold{\underline{\underline{\sf{\pink{ Sight \; of \; photosynthesis:-}}}}}$

Below the epidermis of leaf chloroplast are present which contain a green pigmented molecule called chlorophyll.

$\bullet \; \large\bold{\underline{\underline{\sf{\purple{Factor \; affecting \; rate \; of \; photosynthesis:-}}}}}$

• Light :- a narrow range of light is active for photosynthesis called PAR ( photosynthetically active radiation) is blue and red regions Photosynthesis at its maximum rate.

• Temperature:- All the living reaction require enzymes and enzyme are sensitive to temperature. Photosynthesis perform maximum between 25 to 40° Celsius. At low temperature engine become inactive and at. high temperature protenaceus part of enzymes denature and photosynthesis completely stop.

$\underline {\rule{261}{2}}$