Response to exercise

What increases during exercise? (2 things)

• shivering

• digestion

• muscle contraction

• heart rate

Why does breathing rate increase during exercise?

• To get more energy into the blood

• To get more oxygen into the blood

• To get more glucose into the blood

• To remove more carbon dioxide from the blood

What process increases in muscle cells during exercise?

• Breathing

• Digestion

• Respiration

• Hydrolysis

What can build up in the muscles after prolonged exercise?

• Water

• Amino acids

• Carbon dioxide

• Lactic acid

What is the independent variable in an experiment?

• The variable that you measure

• The variable that you keep the same

• The variable that you don't measure

• The variable that you change

What is our breathing rate?

• the diffusion of gases

• The amount of breaths we take in one minute

• The amount of air we take in, in one breath

• An increase in our tidal volume

What happens to our breathing rate as we exercise?

• It increases
• It decreases
• It stays the same

CARDIAC OUTPUT IS...

• The number of times the heart beats in one minute.
• The amount of blood ejected by the left ventricle per beat. 
• The amount of blood pumped out of the heart in one minute
• Pressure in the arteries following contraction of ventricles as blood is pumped out of the heart. 

What is the definition of oxygen debt?

• Amount of oxygen used for aerobic activity minus amount of oxygen actually used

• Amount of oxygen needed at the end of a physical activity to break down any lactic acid

During oxygen debt, the lactic acid is removed from

• Liver

• Muscles

• Lungs

• Heart

Tags

NGSS.HS-LS2-3