Question

During $C_{2}$ cycle, there occurs

• A. synthesis of sugars
• B. utilisation of $ATP$
• C. synthesis of $ATP$
• D. synthesis of $NADPH$

Answer 1

Answer: (B)

utilisation of $ATP$

Answer 2

Using ATP, the photorespiratory route causes the release of carbon dioxide. There is no ATP or NADPH production in the photorespiratory pathway.

The carbon cycle, sometimes referred to as the oxidative photosynthetic or C2 cycle, is light-dependent.

Photorespiration is the C2 cycle's other name.

It takes place in chloroplasts.

The fixed carbon dioxide escapes when there is a lot of oxygen present.

Neither the synthesis of glucose nor the creation of energy are affected by this process.

As a result of the enzyme RuBisCO's action on carbon dioxide rather than oxygen, fixed carbon is lost.

On the other hand, photorespiration helps plants' immune systems. It supports keeping cells' redox equilibrium in check.

The exchange of carbon molecules between the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere is known as the carbon cycle. The elemental forms of carbon, diamond and graphite, are mixed to generate carbonates in minerals and carbon dioxide gas in the environment.

The phases in the carbon cycle process that are the most crucial are as follows:

1. For photosynthesis, plants take in carbon from the atmosphere.
2. Animals eat these plants, and the carbon subsequently organically accumulates in their bodies.
3. Carbon is released back into the atmosphere during the decomposition and death of plants and animals.
4. Fossil fuels are eventually made from some of the carbon that is not released into the atmosphere.
5. Following their usage in human-made activities that add additional carbon to the atmosphere, these fossil fuels.