Why does darkness affect the light independent reactions of photosynthesis

Asked by maham237 @ 19/05/2021 in Biology viewed by 286 People

Plants stop their daytime activities and rest during the night much like animals do.
Light independent reactions need more heat energy than nighttime temperatures often provide.
Light independent reactions require the energy gathered in the thylakoids.
Mitochondria produce sugars more effectively in the darkness than chloroplasts do.

Answered by maham237 @ 19/05/2021

The right answer is Light independent reactions require the energy gathered in the thylakoids.

* The dark phase corresponds to the phase of assimilation of CO2 which uses the energy molecules produced during the clear phase and which is carried out cyclically. This cycle is called the Calvin cycle and it takes place in the stroma of the chloroplast.

The assimilation of CO2 is done in four main stages, the first three of which take place within the Calvin cycle:

-CO2 fixation (carboxylation).

-Carbon reduction fixed.

-Regeneration of the CO2 acceptor.

-Synthesis of sugars.

* A thylakoid, or thylakoid membrane, in a chloroplast, is a flat membranous sac containing chlorophyll, or in other words, it is a cell membrane within the plant chloroplast that photosynthesizes. The thylakoid of a bacterium is also called the chromatophore.

A thylakoid is a membrane compartment within chloroplasts and cyanobacteria. They are the place of light-dependent reactions of photosynthesis. The thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen (in the biological sense).

Why does darkness affect the light independent reactions of photosynthesis

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