Write main functions of the following organelles
Chloroplast
Ribosomes
Plasm memberane
Answers
Answer:
Function of Chloroplasts
Chloroplasts are essential for the survival and growth of plants and photosynthetic protists. They are responsible to carry out photosynthesis, the process of conversion of light energy into sugar and other organic molecules that are used by plants or algae as food. They also produce amino acids and lipid components that are necessary for chloroplast membrane production.
Photosynthesis has two stages:
(i) The 1st stage: the light-dependent reactions occur. Sunlight is captured through chlorophyll and carotenoids and converted into adenosine triphosphate (ATP, the molecular unit of currency of intracellular energy transfer) and nicotinamide adenine dinucleotide phosphate which carries electrons.
i i ) The 2nd stage: the light-independent reactions, also known as the Calvin cycle, occur. The electrons carried by convert carbon dioxide to carbohydrate, a process known as carbon dioxide fixation. Hence, carbohydrates and other organic molecules can be stored and used for energy.
function of ribosomes
Ribosomes are minute particles consisting of RNA and associated proteins that function to synthesize proteins. Proteins are needed for many cellular functions such as repairing damage or directing chemical processes. Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.
function of plasma membrane see on top
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