Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIOC192 Lectures > Metabolism - Lecture Thirty-Seven > Flashcards

Metabolism - Lecture Thirty-Seven Flashcards

Fuel Storage

1
Q

Anaerobic exercise

A

High intensity
Rapid generation of force
Short period
e.g. sprinting and weight-lifting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Aerobic exercise

A

Low intensity
Prolonged, sustained exercise
e.g. long-distance running, swimming and walking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What ways has muscle of regenerating ATP from ADP: anaerobic exercise?

A

Phosphocreatine

Glycogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What ways has muscle of regenerating ATP from ADP: aerobic exercise?

A

Oxidation of glucose and fatty acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Phosphocreatine

A

is ‘on site,’ ‘fast fuel.’ There’s about 20 mol per g of muscle and is a high energy phosphate compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Phosphate

A

Can be transferred to ADP to make ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Glycogen

A

is an ‘on-site’ store of glucose in muscle and is mobilised to glucose 1-phosphate by glycogen phosphorylase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Glucose 1-phosphate is converted to

A

Glucose 6-phosphate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Glucose 6-phosphate

A

Fuel for anaerobic glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Adrenaline binds to beta adrenergic receptors on muscle cells

A

The hormone comes in and binds as an agonist to the receptor in the cell membrane stimulating the mobilisation of glycogen to provide fuel for glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If the g protein coupled receptor has a GDP

A

It will associate with the receptor AND hormone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

GTP

A

Will associate with Adenylase cyclase which makes cAMP from ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Anaerobic Glycolysis

A

Muscle glycogen source of fuel. ATP is generated by substrate-level-phosphorylation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Anaerobic Glycolysis: Pyruvate reduced to?

A

Lactate to regenerate NAD+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

ATP generation

A

Very rapid but for a short time only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Lactate can cause

A

Muscle pH to drop, therefore causing fatigue

17
Q

What is glycogen mobilisation stimulated by?

A

Ca++ and adrenaline (stress hormone)

18
Q

How is phosphofructokinase activity increased?

A

By allosteric regulators; AMP and Pi

19
Q

Muscle adaptations to endurance training

A

Selective hypertrophy of Type I (aerobic) fibres
Increased number of blood capillaries per muscle fibre
Increased myoglobin content
Increased size and number of mitochondria; increased cristae
Increased capacity of mitochondria to generate ATP by oxidative phosphorylation
Increased capacity to oxidise lipid and carbohydrate

20
Q

Performance enhancing drugs

A

EPO doping - recombinant EPO
Anabolic steroids
Growth factors - recombinant IGF-1, GH

BIOC192 Lectures (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions