Which Statement About Cell Signaling Is False

question 132

Multiple Choice

Which statement about cell signaling is false?

• A) Cells are bombarded with numerous signals, but they do not respond to all of them.
• B) A cell must possess the specific receptor to respond to a particular signal.
• C) Chemical signaling molecules have specific binding sites.
• D) Receptor specificity in cells allows a response to a specific signal.
• E) There are only a few kinds of receptor proteins.

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Definitions:

Herbaceous Eudicot

A non-woody flowering plant that belongs to a large group of dicots, characterized by a broad range of leaf shapes and flower structures.

Cortex

The outer layer of various organs and systems in the body, such as the brain (cerebral cortex), responsible for higher order functions, including thought, memory, and sensory processing.

Endodermis

A layer of cells in the roots of land plants that acts as a selective barrier, regulating the passage of substances from the soil into the vascular system.

Xylem

The vascular tissue in plants responsible for transporting water and nutrients from the roots to the rest of the plant.