Cell Communication

Front

The bloodstream helps transport signal molecules

Back

to distant target cells.

Front

When a signal molecule interacts with a receptor,

Back

it causes an effect in the target cell, leading to a response or change.

Front

Cells travel through the bloodstream during an immune response

Back

to reach the site of infection and respond effectively.

Front

Cells are much larger than signal molecules,

Back

which allows the molecules to pass through blood vessel walls.

Front

The result of a signal molecule binding to a receptor is that

Back

the target cell is activated and responds by changing or performing a specific action.

Front

Receptor shape must match the signal molecule

Back

for effective communication and response.

Front

Cells respond to signals during an immune response by

Back

moving to the site of infection and changing the permeability of blood vessels to allow passage.

Front

Cells ensure specific communication by using receptors with specific shapes

Back

to detect and respond to matching signal molecules.

Front

Effect of adrenaline on heart cells.

Back

When adrenaline binds to heart cell receptors, it causes the heart to beat faster.

Front

Role of bacteria in signal-target interactions.

Back

Bacteria at infection sites produce molecules that signal immune cells.