In Chemical Communication Between Cells, a Cell Secretes a Chemical

question 118

Multiple Choice

In chemical communication between cells, a cell secretes a chemical messenger that binds to on the cell.

• A)secretory : receptors : target
• B)secretory : connexons : target
• C)gap : connexons : secretory
• D)target : receptors : secretory
• E)secretory : connexons : gap

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Definitions:

Root Nodules

Swollen lumps on roots of certain leguminous plants containing symbiotic nitrogen-fixing bacteria, crucial for converting atmospheric nitrogen into a form plants can use.

Bioaccumulation

Bioaccumulation is the process by which certain toxic substances (such as heavy metals or DDT) accumulate in an organism, often reaching harmful levels.

Biological Magnification

The method through which the levels of harmful compounds accumulate progressively in each subsequent level of the food chain.

Persistence

A characteristic of certain chemicals that are extremely stable and may take many years to be broken down into simpler forms by natural processes.