### Answer
The enzyme used in the Calvin cycle to fix CO₂ is called **RuBisCO** (Ribulose bisphosphate carboxylase/oxygenase).

### Explanation
RuBisCO is crucial for the process of photosynthesis that occurs in plants, algae, and some bacteria. It catalyzes the first step in the Calvin cycle, where it facilitates the reaction between carbon dioxide (CO₂) and ribulose bisphosphate (RuBP), leading to the production of 3-phosphoglycerate (3-PGA). This reaction is vital for converting inorganic carbon into organic molecules that can be used by the plant for energy and growth. Other options such as carotenoids, NADPH, and chlorophyll play roles in photosynthesis but do not directly fix CO₂ in the Calvin cycle.

Question

### Answer
The enzyme used in the Calvin cycle to fix CO₂ is called **RuBisCO** (Ribulose bisphosphate carboxylase/oxygenase).

### Explanation
RuBisCO is crucial for the process of photosynthesis that occurs in plants, algae, and some bacteria. It catalyzes the first step in the Calvin cycle, where it facilitates the reaction between carbon dioxide (CO₂) and ribulose bisphosphate (RuBP), leading to the production of 3-phosphoglycerate (3-PGA). This reaction is vital for converting inorganic carbon into organic molecules that can be used by the plant for energy and growth. Other options such as carotenoids, NADPH, and chlorophyll play roles in photosynthesis but do not directly fix CO₂ in the Calvin cycle.

Knowee AI · Accepted Answer

### Answer
The enzyme used in the Calvin cycle to fix CO₂ is called **RuBisCO** (Ribulose bisphosphate carboxylase/oxygenase).

### Explanation
RuBisCO is crucial for the process of photosynthesis that occurs in plants, algae, and some bacteria. It catalyzes the first step in the Calvin cycle, where it facilitates the reaction between carbon dioxide (CO₂) and ribulose bisphosphate (RuBP), leading to the production of 3-phosphoglycerate (3-PGA). This reaction is vital for converting inorganic carbon into organic molecules that can be used by the plant for energy and growth. Other options such as carotenoids, NADPH, and chlorophyll play roles in photosynthesis but do not directly fix CO₂ in the Calvin cycle.

The enzyme used in the Calvin cycle to fix CO₂ is called:Group of answer choicesRuBPrubiscocarotenoidNADPHchlorophyll

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The enzyme used in the Calvin cycle to fix CO₂ is called:

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