Question

Describe Calvin cycle in four steps. Or express Calvin cycle by a diagram

Answer 1

Answer:

The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.

Explanation:

Overview of the Calvin Cycle

This is a diagram of the Calvin Cycle.

Diagram of the Calvin Cycle. Atoms are represented by the following colors: black = carbon, white = hydrogen, red = oxygen, pink = phosphorus.

Mike Jones/Wikimedia Commons/CC BY-SA 3.0

The Calvin cycle is part of photosynthesis, which occurs in two stages. In the first stage, chemical reactions use energy from light to produce ATP and NADPH. In the second stage (Calvin cycle or dark reactions), carbon dioxide and water are converted into organic molecules, such as glucose. Although the Calvin cycle may be called the "dark reactions," these reactions don't actually occur in the dark or during nighttime. The reactions require reduced NADP, which comes from a light-dependent reaction. The Calvin cycle consists of:

Answer 2

$\huge\star\underbrace{\mathtt\red{«A} \mathtt\green{n}\mathtt\blue{s}\mathtt\purple{w}\mathtt\orange{e} \mathtt\pink{r»}}\star\:$

The Calvin cycle uses the energy from short-lived electronically excited carriers to convert carbon dioxide and water into organic compounds that can be used by the organism (and by animals that feed on it). This set of reactions is also called carbon fixation. The key enzyme of the cycle is called RuBisCO.