Muscles and Energy

Exercise trains the large muscles to use oxygen. This allows our muscles to have more....

• hungry

• pain

• fever

• energy

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About how many muscles do you have in your body?

• 600

• 50

• 1,000

• 100

What best describes your heart?

• smooth muscle

• skeletal muscle

• cardiac muscle

• memory muscle

Muscles are working in your body even when you are asleep and still.

• True

• False

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NGSS.MS-LS1-3

What is soft tissue in the human body that allow for movement?

• muscles

• cartilage

• ligament

• tendons

What is the change in a muscle by which it becomes thicker and shorter?

• striated

• smooth

• cardiac

• contraction

Which type of muscle is primarily responsible for voluntary movements in the body?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• Involuntary muscle

What molecule is the primary source of energy for muscle contractions?

• Glucose

• ATP (Adenosine Triphosphate)

• Lactic acid

• Glycogen

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NGSS.HS-LS1-7

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During intense exercise, muscles may switch to anaerobic respiration. What is a byproduct of this process?

• Carbon dioxide

• Water

• Lactic acid

• Oxygen

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NGSS.HS-LS2-3

Which process describes the conversion of glucose into energy in the presence of oxygen?

• Anaerobic respiration

• Photosynthesis

• Aerobic respiration

• Fermentation

Tags

NGSS.HS-LS1-7

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