How stress affect photosynthesis and respiration?

Answer 1

Homeostasis and Thermodynamics of Metabolic Pathways:

Metabolism is a largely circular process of energy conversion in cells of living organisms. Chemical energy is extracted from nutrients (catabolism) and this energy is in turn used to synthesize new molecules (anabolism) from the same type of nutrients to maintain the structure and function of an organism. To accomplish both, say energy extraction from and biosynthesis of proteins, metabolism of living cells is a spatial and temporal network of chemical reactions close to, but never at chemical equilibrium. Living organisms maintain a state of metabolic homeostasis which can be viewed as a steady-state throughput or flow of energy and metabolites to sustain body functions and structures.

Respiration and photosynthesis are catalytically possible only because of the coordinated activity of hundreds of proteins that belong to deferent sets of pathways in different compartments of cells and/or organisms. Understanding the structural and functional complexity that provides reductive synthesis of glucose as well as oxidative degradation is the same as understanding the mechanism of cellular metabolism.

Answer 2

Stress can inhibit photosynthesis by disrupting the balance of plant hormones and reducing the efficiency of photosynthetic enzymes. It can also impede respiration by affecting mitochondrial function and reducing the synthesis of ATP needed for energy production. Overall, stress can lower the metabolic activity of plants, impacting both photosynthesis and respiration.

Answer 3

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