EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two main stages of photosynthesis are the
A
light reactions and respiration
B
dark reactions and the Calvin cycle
C
light reactions and the Calvin cycle
D
dark reactions and fermentation
Explanation: 

Detailed explanation-1: -Figure: The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.

Detailed explanation-2: -While there are many steps behind the process of photosynthesis, it can be broken down into two major stages: light-dependent reactions and light-independent reactions.

Detailed explanation-3: -Carbon atoms end up in you, and in other life forms, thanks to the second stage of photosynthesis, known as the Calvin cycle (or the light-independent reactions).

Detailed explanation-4: -The light reaction is the initial stage of photosynthesis which traps light energy to produce ATP and NADPH, whereas dark reaction is the second step of photosynthesis which utilizes the energy from ATP and NADPH to produce glucose.

Detailed explanation-5: -There are two stages to photosynthesis. The light reaction is the first stage of photosynthesis, followed by the Calvin cycle. In light reactions, the pigment chlorophyll collects light energy and converts it into chemical energy in the form of electron charge carrier molecules like NADPH and ATP.

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