Question

question 1 (3 points)
(02.02 lc)
how does breathing change during exercise? (3 points)
a rate and depth decrease
b rate and depth increase
c rate increases and depth decreases
d rate decreases and depth increases

question 2 (3 points)
(02.02 lc)
during exercise, stored chemical energy is converted to energy that can be used for (3 points)
a muscle movement
b bone development
c ligament repair
d blood vessel dilation

question 3 (3 points)
(02.02 hc)
how is blood flow related to lung function during exercise? (3 points)
a blood vessels are dilated to increase the amount of oxygen carried in the blood, and the lungs work harder to meet the bodys oxygen demands.
b blood volume increases during exercise, making the body more efficient, so it is not necessary for the lungs to work as hard.
c the lungs determine the speed at which the heart pumps, so blood flows at a level that accommodates oxygen absorption in the muscles.
d the lungs expand and contract, which increases the rate of blood flow so the muscles can convert stored energy to energy for muscle movement.

Explanation:

• For Question 1: During exercise, the body needs more oxygen, so the breathing rate and depth increase to take in more oxygen and expel more carbon - dioxide.
• For Question 2: Stored chemical energy (such as ATP) is converted to energy for muscle movement during exercise.
• For Question 3: During exercise, blood vessels dilate to carry more oxygen - rich blood, and the lungs work harder to meet the body's oxygen demands.

Answer:

Question 1: B. Rate and depth increase
Question 2: A. muscle movement
Question 3: A. Blood vessels are dilated to increase the amount of oxygen carried in the blood, and the lungs work harder to meet the body's oxygen demands.