AP - Cell Communication (Litten)

AP - Cell Communication (Litten)

Assessment

Flashcard

Biology

11th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a G protein?

Back

A protein located on the cytoplasmic side of a membrane that acts as a relay protein in cell signaling.

2.

FLASHCARD QUESTION

Front

What is the role of protein kinase in cell signaling?

Back

Protein kinase activates proteins by transferring a phosphate group to them.

3.

FLASHCARD QUESTION

Front

How is signal amplification achieved in cell signaling?

Back

Signal amplification is most often achieved by an enzyme cascade.

4.

FLASHCARD QUESTION

Front

What does the amplification of a signal molecule refer to?

Back

It refers to the process where a single signal molecule can lead to a large response through a series of enzymatic reactions.

5.

FLASHCARD QUESTION

Front

What factors determine whether a signal molecule binds on the surface or enters the cell?

Back

The size, polarity, and ability to cross the membrane of the signal molecule.

6.

FLASHCARD QUESTION

Front

What is signal transduction?

Back

The process by which a cell responds to external signals through a series of molecular events.

7.

FLASHCARD QUESTION

Front

Define 'ligand' in the context of cell signaling.

Back

A ligand is a molecule that binds to a receptor to initiate a signaling pathway.

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