Biochemistry Flashcards

1
Q

What is glycogenesis?

A

synthesis of glycogen from glucose

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2
Q

what is GLYCOGENOLYSIS?

A

breakdown of glycogen to form glucose

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3
Q

What is Gluconeogenesis?

A

De novo synthesis of glucose from metabolic precursors

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4
Q

What types of glycogen is there?

A

Liver and muscle

Liver- breaks down glycogen between meals and released to maintain blood glucose levels

Muscle- not available for maintenance of blood glucose levels

Provides energy via glycolysis and the the citric acid cycle during bursts of physical activity

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5
Q

What is the structure of the glycogen?

A

Is a polymer which is has its alpha glucose monosaccharides joined via 1,4 and 1,6 glycosidic bonds

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6
Q

Where does a primer join the glycogen?

A

Glycogenin

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7
Q

What enzyme is used to allow 1-6 glycosidic bond to occur?

A

transglycosylase

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8
Q

What enzyme is used in the step of converting glucose to glucose 1 phosphate?

A

Glycogen phosphorylase

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9
Q

What enzyme is used to convert glucose 1 phosphate to glucose 6 phosphate?

A

phosphoglucomutase

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10
Q

What precursors are used in gluconeogenesis?

A

Lactate

Amino acids

Glycerol

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11
Q

Gluconeogenesis is essentially the reverse of glycolysis true or false?

A

false- due to use of unique enzymes to overcome unnecessary steps

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