How Creatine REALLY Works - The Biology Behind It

How Creatine REALLY Works - The Biology Behind It

Assessment

Interactive Video

Biology

University

Hard

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The video explains how bodybuilders use creatine for energy and muscle growth. It covers muscle contraction at the cellular level, focusing on sarcomeres, myosin, and actin. ATP is crucial for muscle contraction, acting as the body's energy currency. The video details ATP's role, its hydrolysis into ADP and inorganic phosphate, and the powerstroke mechanism. Creatine supplements help replenish ATP by converting ADP back to ATP, enhancing energy supply during exercise. The video also touches on creatine's effects on water retention and muscle growth hormones.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the main components involved in muscle contraction at the cellular level?

Lipids, carbohydrates, and proteins

DNA, RNA, and proteins

Sarcomeres, myosin, and actin

Nuclei, ribosomes, and mitochondria

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of ATP in muscle contraction?

To store genetic information

To provide energy for the binding and flexing of myosin heads

To transport oxygen in the blood

To break down proteins into amino acids

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is ATP produced in the body?

By absorbing sunlight

By breaking down glucose during cellular respiration

Through the process of osmosis

Through photosynthesis

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is creatine phosphate important for muscle cells?

It stores oxygen for muscle cells

It breaks down fats into fatty acids

It converts ADP to ATP, replenishing energy for muscle contraction

It helps in the digestion of food

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What additional effects does creatine have on muscles besides ATP replenishment?

It reduces muscle strength

It causes muscle fatigue

It increases water retention and affects hormones related to muscle growth

It decreases muscle size