Cell Signalling Flashcards

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0
Q

Why is signalling necessary

A
  • stay in contact with environment and adjacent cells

- communication with cells over 1m a part

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1
Q

What is cell signalling

A

Communication between cells by means of chemicals

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2
Q

Process of cell signalling

A

Chemical signal attaches onto complementary receptor molecule

Triggers a response and change in cell

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3
Q

Why are there vast amounts of receptor molecules

A

Made of proteins
Chains if amino acids
Endless variations of amino acid sequence

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4
Q

How are signals transported

A

Mass transport (blood stream)
Simple diffusion
Electrical impulses

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5
Q

How is insulin used in cell signalling

A

Secreted by beta cells
Binds to complementary target cell in liver/ muscle
Internal response
Change in cells take up of glucose

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