What Do the Results of Research on Gravitropic Responses of Roots

question 28

Multiple Choice

What do the results of research on gravitropic responses of roots and stems show?

• A) Different tissues have the same response to auxin.
• B) The effect of a plant hormone can depend on the tissue.
• C) Some responses of plants require no hormones at all.
• D) Light is required for the gravitropic response.
• E) Cytokinin can only function in the presence of auxin.

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Definitions:

Classes

Categories in taxonomic classification that rank above orders and below phyla, or divisions in grouping organisms based on shared characteristics.

Characteristics

distinguishing traits, qualities, or properties of an object, person, or thing.

Statocysts

Sensory organs found in invertebrates that help in detecting gravity and spatial orientation.

Crustaceans

A diverse group of aquatic animals within the arthropod phylum including crabs, lobsters, crayfish, shrimp, and barnacles, characterized by a hard exoskeleton and jointed limbs.