A Plantʹs Tendency to Grow Toward a Source of Light

question 42

Multiple Choice

A plantʹs tendency to grow toward a source of light is called

• A) phototropism.
• B) lumitropism.
• C) gravitropism.
• D) amylotropism.
• E) thigmotropism.

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Definitions:

Reduced

In chemistry, describes a species that has gained electrons during a reaction, often associated with a decrease in oxidation state.

Neutralization

A chemical reaction in which an acid and a base react quantitatively to form water and a salt.

Reduction-Oxidation

A chemical reaction in which the oxidation states of atoms are changed, typically involving the transfer of electrons.

KOH

KOH, potassium hydroxide, is a strong alkali used in industry and as a reagent in the laboratory, especially in saponification reactions.