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question 90

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Differentiate between phytochrome and cryptochrome and their roles in plant light sensing.
Identify examples of plant responses to environmental stimuli and hormonal signals.
Articulate the mechanisms of flowering induction including the roles of light and darkness.
Describe the process of germination and the factors affecting it, including light exposure.

Definitions:

Wavelengths

The distances between successive crests of a wave, especially waves of electromagnetic radiation like light or radio waves.

Capsaicin

A chemical compound found in chili peppers that generates the sensation of heat or burning in any tissue with which it comes in contact.

Sodium Ions

Positively charged particles of sodium, which play crucial roles in the body such as maintaining fluid balance, transmitting nerve impulses, and muscle contraction.

Substance P

A neuropeptide involved in the transmission of pain and other sensory information to the central nervous system.

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