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BIOC192 > Lecture 3 > Flashcards

Lecture 3 Flashcards

1
Q

What are proteins?

A

Non-branching polymers

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2
Q

Size of proteins?

A

50-100 A

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3
Q

What are proteins made up of?

A

Amino acids

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4
Q

What type of bond links amino acids together?

A

Peptide bond

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5
Q

How many different amino acids are there?

A

20

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6
Q

Ways in which protein structure can be determined:

A

Protein crystallography, electron cryo-microscopy, NMR spectroscopy

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7
Q

Ways to depict chemical structure:

A

Skeletal, ball and stick, space filling

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8
Q

What is the cell signalling hormone and what does it do?

A

Insulin - regulatory hormone, signals to take up glucose after a meal, secreted by pancreas

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9
Q

What does trypsin do?

A

Digestion of proteins in diet

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10
Q

What does HIV protease do?

A

Read genome, make RNA, make protein, chips long proteins in specific areas, essential for HIV replication

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11
Q

What does amylase do?

A

Digestion of carbohydrates, secreted by pancreas

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12
Q

What does alcohol dehydrogenase do?

A

Ethanol/alcohol metabolism/breakdown, catalyse biochemical reactions

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13
Q

What does hexokinase do?

A

Metabolism of glucose, adds phosphate to to glucose with 6 carbons

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14
Q

What does hemoglobin do?

A

Binds oxygen in lungs and carries it in blood tissue to use for metabolism, live in red blood cells

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15
Q

What does ATP synthase do?

A

ATP synthesis/energy production, converts proton gradient into ADP than into ATP

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16
Q

What is responsible for immune protection?

A

Antibodies - bind to cellular invaders like bacteria and viruses to help protect body from infection

17
Q

What is SARS-CoV2 and what does it do?

A

Spike protein that binds to cell causing infection by biding with ACE2 and being taken into the cell

18
Q

What is responsible for replication and maintenance?

A

DNA polymerase - binds one strand of dna and adds complementary strand to it.
RNA polymerase - creates a single strand of rna that is complementary to one of the strands of duplex dna.

BIOC192 (2 decks)

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