Creatine Function (1/2): Biosynthesis, Thermodynamic Concerns, and Exercise

Creatine Function (1/2): Biosynthesis, Thermodynamic Concerns, and Exercise

Assessment

Interactive Video

Science, Chemistry

University

Hard

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The video tutorial covers creatine synthesis, metabolism, and degradation, focusing on its role in energy production in skeletal muscles. It explains the synthesis process in the kidney and liver, the conversion to phosphocreatine in muscles, and the phosphagen system's role in high-intensity exercise. The tutorial highlights the biochemical reactions involved and the importance of creatine in quick energy release during short bursts of activity.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does the first step of creatine synthesis occur?

Liver

Kidney

Skeletal Muscle

Heart

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of guanidinium acetate methyl transferase in creatine synthesis?

It condenses arginine and glycine

It methylates guanidinium acetate

It hydrolyzes ATP

It transports creatine to muscles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of phosphocreatine in muscles?

To transport oxygen

To synthesize proteins

To provide a quick source of ATP

To store energy as fat

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the gamma phosphate bond in ATP considered high energy?

It is a weak bond

It is resonance stabilized

It is easily broken by water

It is a covalent bond

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to phosphocreatine during high-intensity exercise?

It is used to synthesize proteins

It is stored in the liver

It is broken down into amino acids

It is converted to creatine and ATP

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does storing phosphate on creatine affect ATP synthase activity?

It promotes ATP synthesis

It inhibits ATP synthase

It decreases ATP production

It has no effect

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required to synthesize phosphocreatine during rest?

Low oxygen levels

Increased creatine and ATP concentrations

High levels of ADP

High levels of lactic acid

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