4.3 Heart Rate and Fitness (Mr Chow)

Heart rate is usually measured in...

• beats per month (bpm)

• beetles per minute (bpm)

• beats per minute (bpm)

• bezels per month (bpm)

A trained athlete who is fit usually... (2 answers)

• has a high resting heart rate

• has a low resting heart rate

• has a heart rate that increases a lot during exercise

• can return to a resting heart rate very quickly after exercise

What is the average heart rate of a normal person?

• 30 - 70 bpm

• 50 - 60 bpm

• 60 - 100 bpm

• 100 - 200 bpm

Why does a lower resting heart rate generally indicates that a person is fitter?

• The heart needs to work hard to pump the blood around the body.

• The heart of a fitter person is always resting.

• The heart does not need to pump many times to get the blood around the body.

• The heart pumps blood out of the body.

Why does the heart rate of a person increase when he/she exercises?

• to provide more carbon dioxide for respiration.

• to provide more blood for photosynthesis.

• to provide more oxygen and glucose to the cells to generate energy.

• to provide more nutrients to the vena cava.

Bill and Jim jumped rope for 4 minutes and rested.

Based on the graph, who is fitter?

• Bill

• Jim

• They have the same fitness

Bill and Jim jumped rope for 4 minutes and rested.

Based on the graph, why is Bill considered fitter? (3 answers)

• Bill has a lower resting heart rate.

• Jim has a faster recovery than Bill.

• Bill has a higher maximum heart rate than Jim.

• Jim's heart rate increased more than Bill.

• Bill returned to his resting heart rate faster than Jim.

The name of the process done by the cells in our body to generate energy is......

• photosynthesis

• excretion

• respiration

• digestion

Respiration is a process carried out by the cells in our body to generate energy. Respiration needs... (2 answers)

• carbon dioxide

• oxygen

• water

• glucose

When a person exercises... (3 answers)

• his heart rate increases.

• his muscles need less oxygen and glucose.

• his cells need more oxygen and glucose.

• more blood is pumped around his body.