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Cell Signaling Mechanisms Flashcard

Cell Signaling Mechanisms Flashcard

Assessment

Flashcard

Biology

12th Grade

Practice Problem

Hard

Created by

Sarah Dolan

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

Type of cell communication involving direct contact between cells: Hormones, Gap junctions, Exocytosis, Second messengers.

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Back

Gap junctions

2.

FLASHCARD QUESTION

Front

What is the primary role of a ligand in cell signaling?

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Back

To bind to a receptor

3.

FLASHCARD QUESTION

Front

Explain how G-protein coupled receptors (GPCRs) initiate a cellular response upon ligand binding.

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Back

GPCRs activate G-proteins, which then trigger a signaling cascade.

4.

FLASHCARD QUESTION

Front

Describe the role of second messengers in signal transduction pathways.

Back

They amplify the signal within the cell.

5.

FLASHCARD QUESTION

Front

Which process involves the release of substances from a cell?

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Back

Exocytosis

6.

FLASHCARD QUESTION

Front

How do protein kinases and protein phosphatases regulate cellular activities?

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Back

By adding or removing phosphate groups from proteins

7.

FLASHCARD QUESTION

Front

Evaluate the importance of local regulators in cell communication and provide an example.

Back

Local regulators are important for short-distance signaling; an example is neurotransmitters.

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