Which of the Following Statements Best Describes Density-Dependent Inhibition

question 44

Multiple Choice

Which of the following statements best describes density-dependent inhibition?

• A) As cells become more numerous, they begin to squeeze against each other, restricting their size.
• B) As cells become more numerous, the cell surface proteins of one cell contact the adjoining cells, and they signal each other to stop dividing.
• C) As cells become more numerous, the protein kinases they produce begin to compete with each other, such that the proteins produced by one cell essentially cancel those produced by its neighbor.
• D) As cells become more numerous, the level of waste products increases, which slows metabolism and inhibits growth.

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Definitions:

Inducible Operon

A segment of DNA in which the expression of genes is increased in response to specific environmental stimuli.

Catabolic Pathway

A metabolic pathway that breaks down molecules into smaller units, releasing energy.

Bacterial Enzymes

Enzymes produced by bacteria that catalyze chemical reactions, involved in processes such as metabolism, DNA replication, and the degradation of substances.

Operon

A functional unit of DNA containing a group of genes controlled by a single promoter, used by prokaryotes to regulate gene expression efficiently.