WorksheetsVCE PE - Acute Responses (U3 AOS 2 O2 DP5)
Total questions: 44
Worksheet time: 22mins
During exercise, skeletal muscle capillaries dilate in order to
Increase their surface area to enable greater diffusion to occur
Decrease the removal of metabolic by-products
Decrease the use of intramuscular substrates
Increase ventilation and stroke volume
During exercise, an individual's heart rate and the force of their heart's contractions are increased. As a result, there is:
no change in systolic blood pressure
a decrease in systolic blood pressure
an increase in systolic blood pressure
a large decrease in diastolic blood pressure
The estimated maximum heart rate of a 50-year-old athlete would be:
150 bpm
170 bpm
190 bpm
220 bpm
During exercise, blood flow is redirected to the working muscles. A direct result of this is:
An increase in oxygen to the working muscles
A decrease in the a-VO2 difference
Vasoconstriction of coronary arteries
An increase in blood volume
Acute responses to exercise include:
A decrease in blood volume, increase in oxygen consumption and increase in intramuscular energy substrates
A decrease in oxygen consumption, decrease in blood volume and decrease in intramuscular energy substrates
An increase in the a-VO2 diff, increase in oxygen consumption and increase in blood flow to working muscles
An increase in oxygen consumption, decrease in intramuscular energy substrates and increase in blood volume
Following two minutes of high-intensity activity, which of the following conditions would exist in the exercising muscle?
Some reduction in glycogen stores and build up of lactic acid
Reduced lactic acid and the same amount of glycogen as prior to the exercise
Little lactic acid and a substantial amount of glycogen
No glycogen and much lactic acid
An increase in cardiac output from rest to steady state is associated with:
An increase in stroke volume and an increase in heart rate
An increase in stroke volume and an decrease in heart rate
A decrease in stroke volume and an increase in heart rate
A decrease in stroke volume and an decrease in heart rate
Which two major muscles are used to enlarge the thoracic cavity during inspiration?
Pectorals and abdominals
Pectorals and the diaphragm
Intercostals and the diaphragm
Intercostals and pectorals
Blood flow must be increased during exercise to allow the working muscles to receive larger quantities of oxygen. This is achieved by:
The red blood cells increasing their rate of haemoglobin production to allow for more oxygen to be carried through the blood to the muscles.
Redistributing some of the blood flow from the skin to the muscles
Redistributing some of the blood flow from non-essential organ function to the muscles
Decreasing the stroke volume of the heart
Which of the following is NOT an acute respiratory response to exercise?
Increased stroke volume
Increased arteriovenous oxygen difference
Decreased pulmonary diffusion
Increased tidal volume
Ventilation
Depends on body size and gender
Is the product of tidal volume and respiratory rate
Can vary between 4 and 15 litres at rest
All answers are correct
The process by which O2 and CO2 are exchanged between the capillaries and alveoli is known as:
Breathing
Respiration
Ventilation
Diffusion
Venoconstriction is a characteristic of veins that assists with:
Venous return
Atrial pressure
Vena Cava Retention
Pulmonary return
An acute muscular response to exercise would include:
Recruitment and activation of additional muscle fibres
Increased blood flow to the working muscles
Immediate utilisation of stored ATP
All answers are correct
During extended maximum intensity exercise
The lactate inflection point will be reached
Lactate will cease to have an impact
Ventilation will supply enough O2 to break down lactate
No answer is correct
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.
Heart rate ....
Stays constant from rest to exercise.
Slightly decreases during exercise, because stroke volume increases.
Increases during exercise
Always goes straight to maximum during any exercise = 220 minus age.
REDISTRIBUTION OF BLOOD FLOW...
During exercise, blood flow is redirected away from the spleen, kidneys, guts and inactive muscles so that working muscles receive a greater % of Q.
Is pressure in the arteries following contraction of ventricles as blood is pumped out of the heart.
During exercise does not change. All organs continue to receive a consistent percentage of cardiac output
BLOOD VOLUME...
During aerobic exercise, blood volume increases. Plasma volume increases rapidly in the first 5 minutes of exercise then stabilises.
Is the number of breaths taken in one minute.
Is the blood returning to the heart via the inferior and superior vena cava.
During aerobic exercise, blood volume decreases. Plasma volume decreases rapidly in the first 5 minutes of exercise then stabilises.
VENOUS RETURN IS...
The blood returning to the heart via the inferior and superior vena cava.
The number of breaths taken in one minute.
The blood returning to the heart via the inferior and superior vena cava.
During aerobic exercise, blood volume decreases. Plasma volume decreases rapidly in the first 5 minutes of exercise then stabilises.
DIASTOLIC BLOOD PRESSURE IS...
Pressure in the arteries following contraction of ventricles as blood is pumped out of the heart.
The blood returning to the heart via the inferior and superior vena cava.
Pressure in the arteries when the heart relaxes and ventricles fill with blood.
VASOCONSTRICTION IS.
A increase in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.
A increase in the diameter of a blood vessel, resulting in a increase in blood flow to the area supplied by the blood vessel.
A decrease in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.
A decrease in the diameter of a blood vessel, resulting in no change in blood flow to the area supplied by the blood vessel.
VASODIALATION IS...
A increase in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.
A increase in the diameter of a blood vessel, resulting in a increase in blood flow to the area supplied by the blood vessel.
A decrease in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.
A decrease in the diameter of a blood vessel, resulting in no change in blood flow to the area supplied by the blood vessel.
DIFFUSION IS...
How much air is inspired or expired in one breath.
The number of breaths taken in one minute.
(VO2 )The volume of oxygen that can be taken up and used by the body per minute.
The movement of molecules from an area of higher pressure to one of lower concentration.
VENTILATION IS...
How much air is inspired or expired in one breath.
How much air is breathed in or out in one minute.
The number of breaths taken in one minute.
(VO2 )The volume of oxygen that can be taken up and used by the body per minute.
TIDAL VOLUME IS...
How much air is inspired or expired in one breath.
The number of breaths taken in one minute.
How much air is breathed in or out in one minute.
(VO2 )The volume of oxygen that can be taken up and used by the body per minute.
RESPIRATORY RATE...
Is how much air is inspired or expired in one breath.
Is how much air is breathed in or out in one minute.
Is the number of breaths taken in one minute
Is (VO2 ) the volume of oxygen that is be taken up and used by the body per minute.
OXYGEN CONSUMPTION IS...
The difference in oxygen concentration in the arterioles compared to the venules
During aerobic exercise, blood volume decreases. Plasma volume decreases rapidly in the first 5 minutes of exercise then stabilises.
The number of breaths taken in one minute.
(VO2 )The volume of oxygen that is taken up and used by the body per minute.
Arterio - Venous Oxygen Difference...
Decreases during exercise, because there is less oxygen in the veins compared to the arteries
Stays the same during exercise, because the muscles are always extracting maximum amounts of oxygen from the blood.
Increases during exercise, because the muscles extract less oxygen from the blood
Increases during exercise, because the muscles extract more oxygen from the blood.
Which is the correct formula for Q
TVxRR
HRxSV
220-Age
VO2 X a-VO2 diff
Which of the following is an acute respiratory response to exercise?
Increased Tidal Volume (TV
Increased Heart Rate (HR)
Increase in oxygen consumption
Increased Oxygen Uptake
Which of the following is an acute cardiovascular response to exercise?
Increased Ventilation
Increased Body Temperature
Increased Venous Return
Increased lactate production
Which of the following is an acute muscular response to exercise?
Increased Pulmonary Diffusion
Increased Motor Unit Recruitment
Redistribution of blood flow to working muscles and skin
Increased Blood Pressure
State the major body systems that respond immediately to the transition from rest to exercise.
Cardiovascular, skeletal and muscular
Respiratory, skeletal and muscular
Cardiovascular, respiratory and muscular
Cardiovascular, digestive and nervous
State which two factors, when multiplied, result in cardiac output.
Heart rate and stroke volume
Blood volume and heart rate
Tidal volume and heart rate
Stroke volume and blood volume
Cardiac output at rest and during maximal exercise would be approximately
1 to 2 L/min and 4 to 5 L/min respectively.
1 to 2 L/min and 40 to 45 L/min respectively
11 to 12 L/min and 24 to 35 L/min respectively
5 to 6 L/min and 20 to 25 L/min respectively
What is stroke volume typically measured in (thick about the volume of the left ventricle)?
mmHg/min
L/min
ml/min
mm/min
Which two factors, when multiplied, result in ventilation?
Tidal volume and maximal oxygen uptake
Respiratory frequency and total lung capacity
Respiratory frequency and tidal volume
Residual volume and respiratory volume
The relationship between exercise intensity and oxygen uptake is
Exponential until maximal uptake is obtained
Linear until maximal uptake is obtained
non-linear
non-linear until maximal uptake is obtained
From rest to submaximal exercise, the arteriovenous difference
increases
remains the same
decreases
is close to zero
At the start of exercise, the body's oxygen transport systems do not immediately supply the required quantity of oxygen to the active muscles. This is known as
steady state
oxygen debt
oxygen deficit
EPOC
During exercise, capillaries and arterioles
vasoconstrict to increase oxygen to the working muscles.
vasodilate to decrease oxygen to the non-essential organs.
remain the same to increase oxygen to the non-essential organs.
vasodilate to increase oxygen to the working muscles.
An elite female alpine skier would have a VO2 max of approximately
65 to 70 mL/kg/min.
50 to 55 mL/kg/min.
50 to 55 L/min.
50 to 55 mL/min.
An acute muscular response during high intensity exercise could be
decreased stores of ATP and creatine phosphate.
increased tidal volume.
tidal volume will plateau
decreased muscle enzyme activity.
