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notsponge [240]
3 years ago
6

Explain how brassinosteroids are synthesised, perceived and promote plant growth and development. Please give named examples and

critical analysis to support your answer
Biology
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

Brassinosteroids are synthesized from phytosterols and they promote plant growth and development by modulating cellular processes (e.g, cell division, elongation, photomorphogenesis, responses to environmental stimuli, etc).

Explanation:

Brassinosteroids are phytohormones similar to steroid hormones. Phytosterols include sitosterol, campesterol, and stigmasterol, i.e., lipid (cholesterol) molecules that form the cell membranes. These polyhydroxylated steroidal phytohormones play a wide range of cellular roles during plant growth, development and immunity. Examples of brassinosteroid functions include plant development, xylem differentiation, responses to biotic/abiotic stresses, reproduction, etc. For example, campesterol, which is a precursor of brassinosteroid hormones, is an integral membrane component that functions during plant embryogenesis by regulating the permeability of cell membranes and by altering membrane-associated proteins, as well as signal transduction pathways.

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Answer:

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Definitions

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<h2>What are the similarities and differences between prokaryotes, mitochondria, and chloroplasts?</h2>

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