Which Pigment Is Responsible for the Phototropism Responses of Plants

question 25

Multiple Choice

Which pigment is responsible for the phototropism responses of plants?

• A) Ethylene
• B) Phytochrome
• C) Chlorophyll
• D) Auxin
• E) Xanthophyll

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Definitions:

Carbon

A chemical element with symbol C and atomic number 6, essential to all known life and the basis for organic chemistry.

Hydrogens

A chemical element with the symbol H and atomic number 1, known as the lightest element in the periodic table.

Beta-pleated Sheet

A beta-pleated sheet is a common protein secondary structure formed by parallel or antiparallel beta-strands linked together by hydrogen bonding.

Carbohydrate

Organic compounds, such as sugars, starches, and cellulose, consisting of carbon, hydrogen, and oxygen, that are an essential source of energy for living organisms.