BIOBEYOND UNIT 8 A CHANGE OF HEART EXAM QUESTIONS WELL ANSWERED LATEST 2025
-2026
To learn more about how your body manages physically demanding tasks, select a physical
activity that you would most likely find yourself doing. - Answers Walking to school or work
Now imagine you are knee-deep in that activity. You have exerted yourself for almost an hour.
How would this make you feel?
(Select all that apply) - Answers Sweaty
Tired
Heart Rate beating fast
Predict what you think is going on inside your body during vigorous exercise? (Select all that
apply) - Answers All
But how does blood rich in oxygen and glucose reach the muscle cells that need them? -
Answers Systemic Circulation
Place the dot on the correct location. - Answers left ventricle
Based on the evidence on the right, do you think there is a relationship between cardiac output
and intense physical activity? - Answers Yes, as physical activity gets more intense, cardiac
output increases
Exercise typically increases the demand for oxygen by cells. How would a decrease in cardiac
output affect one's exercise capacity? - Answers Oxygen delivery would decrease and the ability
to do rigorous exercise would decline
If both are full of water, which will have a greater output (ie. deliever more water) upon bursting?
- Answers 1st one
Why do you believe the balloon on the left will have a greater output? - Answers The balloon on
the left is larger and can hold more water
What do you notice about the maximum amount of blood filling the left ventricle of astronauts'
hearts after 12 weeks of spaceflight? - Answers The maximum volume of blood filling the
heart's ventricles is lower after 12 weeks in space
Does the evidence in the graph shown (right) support the idea that blood volume decreases in
microgravity? - Answers yes
In the case of astronauts, less blood fills the heart's left ventricle. Make an inference about how
you think the heart will respond. - Answers The heart will not have to contract as hard. Heart
muscles will atrophy (decrease in mass) as a result
-2026
To learn more about how your body manages physically demanding tasks, select a physical
activity that you would most likely find yourself doing. - Answers Walking to school or work
Now imagine you are knee-deep in that activity. You have exerted yourself for almost an hour.
How would this make you feel?
(Select all that apply) - Answers Sweaty
Tired
Heart Rate beating fast
Predict what you think is going on inside your body during vigorous exercise? (Select all that
apply) - Answers All
But how does blood rich in oxygen and glucose reach the muscle cells that need them? -
Answers Systemic Circulation
Place the dot on the correct location. - Answers left ventricle
Based on the evidence on the right, do you think there is a relationship between cardiac output
and intense physical activity? - Answers Yes, as physical activity gets more intense, cardiac
output increases
Exercise typically increases the demand for oxygen by cells. How would a decrease in cardiac
output affect one's exercise capacity? - Answers Oxygen delivery would decrease and the ability
to do rigorous exercise would decline
If both are full of water, which will have a greater output (ie. deliever more water) upon bursting?
- Answers 1st one
Why do you believe the balloon on the left will have a greater output? - Answers The balloon on
the left is larger and can hold more water
What do you notice about the maximum amount of blood filling the left ventricle of astronauts'
hearts after 12 weeks of spaceflight? - Answers The maximum volume of blood filling the
heart's ventricles is lower after 12 weeks in space
Does the evidence in the graph shown (right) support the idea that blood volume decreases in
microgravity? - Answers yes
In the case of astronauts, less blood fills the heart's left ventricle. Make an inference about how
you think the heart will respond. - Answers The heart will not have to contract as hard. Heart
muscles will atrophy (decrease in mass) as a result
