According to the Young-Helmholtz Theory

question 254

Multiple Choice

According to the Young-Helmholtz theory

• A) the retina contains three kinds of color receptors.
• B) color vision depends on pairs of opposing retinal processes.
• C) the size of the difference threshold is proportional to the intensity of the stimulus.
• D) certain nerve cells in the brain respond to specific features of a stimulus.

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Definitions:

Propanoyl Chloride

An acyl chloride compound with the formula C3H5ClO, used primarily in organic synthesis as an acylating agent.

Mechanism

The detailed step-by-step pathway through which reactants transform into products in a chemical reaction.

Ammonia

A colorless gas with a pungent smell, composed of nitrogen and hydrogen (NH3), used widely as a fertiliser and industrial feedstock.

Propanoic Acid

A short-chain fatty acid with the formula C2H5COOH, known for its unpleasant odor similar to body sweat.