Question
Q3. The graph shows the rate of blood flow through different organs at rest and during exercise. (a) Determine the total volume of blood that flows through the brain in 1 hour. __ Volume=cm^3 (b) Look at the blood flow through the skeletal muscle. Calculate how many times the blood flow increases by during exercise compared to at rest. __ (c) Explain why the blood flow to the skeletal muscles increases during exercise. __
Answer
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Delyth
Elite · Tutor for 8 years
Answer
This question cannot truly be answered without specific numeric data from the graph that is mentioned, but it seems to be missing from the question. Similarly, numeric data from this graph would be necessary to provide an explanation or conclusion for part c). However, in general, blood flow to the skeletal muscles will increase during exercise because of increased oxygen and nutrient requirement by the muscle cells and to remove waste products more effectively.
Explanation
## Step1:From the given graph, identify the rate of blood flow through the brain.## Step2:Multiply the rate by 60 to find the total volume in one minute, since the rate is given in cubic centimeters per minute (
).### Formula:
## Step3:Multiply again by 60 to find the total volume in an hour, since there are 60 minutes in one hour.## Step4:Identify the blood flow rate through the skeletal muscle at rest and during exercise.## Step5:Calculate the fold increase of blood flow by dividing the rate during exercise by the rate at rest.### Formula:
## Step6:The blood flow to skeletal muscles significantly increases during exercise due to increased oxygen demand in cells because of the muscular contraction and metabolic reactions for ATP synthesis, which is used as energy.