Muscle Fatigue Lab Check Questions

Front

What is the role of ATP in muscle contraction?

Back

ATP is continuously required to sustain muscle contraction.

Front

True or False: Every time a muscle contracts, energy in the form of ATP gets used up.

Back

True

Front

True or False: The only reason our muscles get fatigued is because of the build-up of lactic acid.

Back

False

Front

Which cell organelle provides energy for muscle contraction?

Back

Mitochondria.

Front

What molecule powers the contraction of a muscle?

Back

ATP.

Front

Define muscle fatigue.

Back

Muscle fatigue is the decline in ability of a muscle to generate force.

Front

What causes muscle fatigue besides lactic acid build-up?

Back

Factors include depletion of energy stores, accumulation of metabolites, and changes in ion concentrations.

Front

What is the primary energy source for muscle contraction?

Back

Adenosine triphosphate (ATP).

Front

How does the body replenish ATP during muscle activity?

Back

Through cellular respiration, particularly aerobic and anaerobic pathways.

Front

What is the significance of mitochondria in muscle cells?

Back

Mitochondria are the powerhouse of the cell, producing ATP through aerobic respiration.