Answered: Both carbon dioxide and _____________…

Science

Biochemistry

Both carbon dioxide and _____________ compete for the active site of rubisco.

Medical Terminology for Health Professions, Spiral bound Version (MindTap Course List)

8th Edition

ISBN:9781305634350

Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder

Publisher:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder

Chapter2: The Human Body In Health And Disease

Section: Chapter Questions

Problem 92LE

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Concept explainers

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.

Question

Both carbon dioxide and _____________ compete for the active site of rubisco.

Expert Solution

Step 1

The Calvin cycle is light-dependent on the metabolic reaction which takes place in the Chloroplast of the plants.

They are 3 major steps in Calvin cycles and they are

Carbon Fixation
Reduction
Regeneration

Step 2

Carbon fixation was the first step of the Calvin cycle where the carbon dioxide binds with ribulose - 1,5-biphosphate to form 6 molecules of glyceraldehyde -3-phosphate.

This reaction was catalyzed by the enzyme RuBP carboxylase or rubisco.

The carbon dioxide competes with lysine amino acids for the active site of the enzyme which leads to the formation of carbamate.

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