Exercise Physiology Questions and Answers

Q: As the right ventricle contracts, the........................ valve closes, preventing blood from back flowing to the atrium.

The valve is the tricuspid valve.The tricuspid valve lies between the right atrium and the right ventricle. When the right ventricle contracts, the rising pressure closes it, so blood cannot flow back into the atrium and is driven instead through the pulmonary valve into the pulmonary artery.The bicuspid (mitral) valve does the same job on the left side, between the left atrium and left ventricle. The pulmonary valve opens, not closes, when the right ventricle contracts, and the vena cava is a vein, not a valve.

Q: In extremely hot weather, the fluid needs of an active person increase by about :

The key gives 6 times normal.In extremely hot weather an active person loses large amounts of water as sweat, so fluid intake must rise well above the ordinary daily need. The keyed multiple is six.I could not confirm the figure of six times normal in any source I could reach; sports-nutrition sources give absolute losses instead (a litre or more of sweat an hour in the heat, and several litres a day), which depend on the person and the conditions and are not stated as a multiple. Nothing found shows the key wrong, so it is kept. A rise of only two or three times looks too small for extreme heat and ten times looks too large.

Q: A calorie is equal to the amount of heat required to raise the temperature of one gram of water 1°C and that difference is precised to...........................

The temperature interval is 14.5°C to 15.5°C.The heat needed to warm water varies slightly with temperature, so the calorie was defined precisely as the heat required to raise one gram of water from 14.5°C to 15.5°C, the '15-degree calorie', equal to about 4.186 joules. The kilocalorie (1,000 calories) is the 'Calorie' used for food energy.Other definitions exist, for example the mean calorie from 0°C to 100°C, but 0°C to 1°C, 20.5°C to 21.5°C and body temperature, 37°C to 38°C, are not the reference interval.

Q: One of the following does not belong to fatty acid........................

The one that is not a fatty acid is ascorbic acid.Ascorbic acid is vitamin C, a water-soluble vitamin with a sugar-like ring structure, needed for collagen formation; its deficiency causes scurvy. It is not a fatty acid.The other three are fatty acids, long hydrocarbon chains with a carboxyl group, found in fats and oils. Stearic acid and palmitic acid are saturated fatty acids, and oleic acid is a monounsaturated fatty acid, the main fatty acid of olive oil.

Q: Laboured breathing is known as..................................

Laboured breathing is called dyspnea.Dyspnoea is difficult or laboured breathing, the feeling of breathlessness. It is normal during hard exercise but abnormal at rest, where it can signal heart or lung disease or poor fitness.VO2 max is the maximum rate of oxygen uptake, a measure of aerobic capacity. Vital capacity is the largest volume of air that can be breathed out after a maximal breath in. Second wind is the sudden relief from breathlessness and fatigue that can come during prolonged exercise, the opposite of laboured breathing.

Q: FTA fibers are..........................

FTa fibres are oxidative-glycolytic.Skeletal muscle fibres are classified as slow-twitch (type I), which are oxidative, and fast-twitch (type II). The fast-twitch type IIa (FTa) fibres are fast oxidative-glycolytic: they contract quickly and can produce energy both aerobically and anaerobically, so they are fairly resistant to fatigue.The fast-twitch type IIx (or IIb) fibres, FTb, are the purely glycolytic ones, powerful but quick to tire. Purely oxidative describes slow-twitch fibres, and FTa fibres are a well-defined type, so 'unclassified' does not fit them.

Q: The BMR is about ............... to ........... % ................. in women than in men.

The BMR is about 5 to 10 percent lower in women than in men.Basal metabolic rate depends largely on the amount of lean, metabolically active tissue. Women on average have a higher proportion of body fat and less muscle mass than men of the same body weight, so their BMR is roughly 5 to 10 percent lower, even when expressed per kilogram of body weight.The options saying 'higher' reverse the direction, and a difference of 40 to 60 percent is far larger than the real gap between the sexes.

Q: Pangamic acid is ...........................

Pangamic acid is called Vitamin B-15.Pangamic acid was promoted from the 1950s, especially in the Soviet Union, as 'vitamin B15' and claimed to improve oxygen use and endurance in athletes. It is not a true vitamin: no deficiency disease is known and its composition varies between products, but in sports nutrition texts it is listed under that name.Vitamin B-1 is thiamine, Vitamin B-6 is pyridoxine and Vitamin B-12 is cobalamin; none of them is pangamic acid.

Q: A fat like compound found in animal tissues thought to cause atherosclerosis is :

The compound is cholesterol.Cholesterol is a fat-like sterol found in all animal tissues and made by the liver. It is needed for cell membranes and for making steroid hormones and bile acids. High levels of LDL cholesterol in the blood lead to deposits (plaques) in the walls of arteries, the process of atherosclerosis, which narrows them and raises the risk of heart attack and stroke.Glucagon is a pancreatic hormone that raises blood sugar, cortisol is an adrenal stress hormone and glucose is a simple sugar. None of them is fat-like or the substance deposited in atherosclerotic plaques.

31.

As the right ventricle contracts, the........................ valve closes, preventing blood from back flowing to the atrium.

A.Vena cava
B.Tricuspid valve
C.Bicuspid valve
D.Pulmonary valve

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: B

The valve is the tricuspid valve.

The tricuspid valve lies between the right atrium and the right ventricle. When the right ventricle contracts, the rising pressure closes it, so blood cannot flow back into the atrium and is driven instead through the pulmonary valve into the pulmonary artery.

The bicuspid (mitral) valve does the same job on the left side, between the left atrium and left ventricle. The pulmonary valve opens, not closes, when the right ventricle contracts, and the vena cava is a vein, not a valve.

Discuss in Forum

32.

In extremely hot weather, the fluid needs of an active person increase by about :

A.2 times normal
B.3 times normal
C.6 times normal
D.10 times normal

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: C

The key gives 6 times normal.

In extremely hot weather an active person loses large amounts of water as sweat, so fluid intake must rise well above the ordinary daily need. The keyed multiple is six.

I could not confirm the figure of six times normal in any source I could reach; sports-nutrition sources give absolute losses instead (a litre or more of sweat an hour in the heat, and several litres a day), which depend on the person and the conditions and are not stated as a multiple. Nothing found shows the key wrong, so it is kept. A rise of only two or three times looks too small for extreme heat and ten times looks too large.

Discuss in Forum

33.

A calorie is equal to the amount of heat required to raise the temperature of one gram of water 1°C and that difference is precised to...........................

A.14.5°C–15.5°C
B.20.5°C–21.5°C
C.0°C–1°C
D.37°C–38°C

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: A

The temperature interval is 14.5°C to 15.5°C.

The heat needed to warm water varies slightly with temperature, so the calorie was defined precisely as the heat required to raise one gram of water from 14.5°C to 15.5°C, the '15-degree calorie', equal to about 4.186 joules. The kilocalorie (1,000 calories) is the 'Calorie' used for food energy.

Other definitions exist, for example the mean calorie from 0°C to 100°C, but 0°C to 1°C, 20.5°C to 21.5°C and body temperature, 37°C to 38°C, are not the reference interval.

Discuss in Forum

34.

One of the following does not belong to fatty acid........................

A.Stearic acid
B.Oleic acid
C.Ascorbic acid
D.Palmitic acid

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: C

The one that is not a fatty acid is ascorbic acid.

Ascorbic acid is vitamin C, a water-soluble vitamin with a sugar-like ring structure, needed for collagen formation; its deficiency causes scurvy. It is not a fatty acid.

The other three are fatty acids, long hydrocarbon chains with a carboxyl group, found in fats and oils. Stearic acid and palmitic acid are saturated fatty acids, and oleic acid is a monounsaturated fatty acid, the main fatty acid of olive oil.

Discuss in Forum

35.

Laboured breathing is known as..................................

A.VO2 max
B.Dyspnea
C.Vital capacity
D.Second wind

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: B

Laboured breathing is called dyspnea.

Dyspnoea is difficult or laboured breathing, the feeling of breathlessness. It is normal during hard exercise but abnormal at rest, where it can signal heart or lung disease or poor fitness.

VO2 max is the maximum rate of oxygen uptake, a measure of aerobic capacity. Vital capacity is the largest volume of air that can be breathed out after a maximal breath in. Second wind is the sudden relief from breathlessness and fatigue that can come during prolonged exercise, the opposite of laboured breathing.

Discuss in Forum

36.

FTA fibers are..........................

A.Oxidative
B.Glycolytic
C.Oxidative-Glycolytic
D.Unclassified

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: C

FTa fibres are oxidative-glycolytic.

Skeletal muscle fibres are classified as slow-twitch (type I), which are oxidative, and fast-twitch (type II). The fast-twitch type IIa (FTa) fibres are fast oxidative-glycolytic: they contract quickly and can produce energy both aerobically and anaerobically, so they are fairly resistant to fatigue.

The fast-twitch type IIx (or IIb) fibres, FTb, are the purely glycolytic ones, powerful but quick to tire. Purely oxidative describes slow-twitch fibres, and FTa fibres are a well-defined type, so 'unclassified' does not fit them.

Discuss in Forum

37.

The BMR is about ............... to ........... % ................. in women than in men.

A.40, 60, higher
B.5, 10, higher
C.5, 10, lower
D.40, 60, lower

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: C

The BMR is about 5 to 10 percent lower in women than in men.

Basal metabolic rate depends largely on the amount of lean, metabolically active tissue. Women on average have a higher proportion of body fat and less muscle mass than men of the same body weight, so their BMR is roughly 5 to 10 percent lower, even when expressed per kilogram of body weight.

The options saying 'higher' reverse the direction, and a difference of 40 to 60 percent is far larger than the real gap between the sexes.

Discuss in Forum

38.

One of the following is not the effects of anabolic Androgenic steroids :

A.Acne
B.Facial hair
C.Weight loss
D.Scalp hair loss

Exam Year(s)

MH SET - 2021, SET Exam - 2021,

Answer: C

The one that is not an effect of anabolic androgenic steroids is weight loss.

Anabolic androgenic steroids are synthetic derivatives of testosterone. Their anabolic action increases protein synthesis and muscle mass, so they cause weight gain, not weight loss.

Their androgenic side effects include acne from increased sebum production, growth of facial and body hair (especially in women), and male-pattern scalp hair loss. Other effects include liver damage, adverse changes in blood cholesterol, testicular atrophy and mood changes.

Discuss in Forum

39.

Pangamic acid is ...........................

A.Vitamin B-1
B.Vitamin B-6
C.Vitamin B-12
D.Vitamin B-15

Exam Year(s)

MH SET - 2021, SET Exam - 2021,

Answer: D

Pangamic acid is called Vitamin B-15.

Pangamic acid was promoted from the 1950s, especially in the Soviet Union, as 'vitamin B15' and claimed to improve oxygen use and endurance in athletes. It is not a true vitamin: no deficiency disease is known and its composition varies between products, but in sports nutrition texts it is listed under that name.

Vitamin B-1 is thiamine, Vitamin B-6 is pyridoxine and Vitamin B-12 is cobalamin; none of them is pangamic acid.

Discuss in Forum

40.

A fat like compound found in animal tissues thought to cause atherosclerosis is :

A.Glucagon
B.Cholesterol
C.Cortisol
D.Glucose

Exam Year(s)

MH SET - 2021, SET Exam - 2021,

Answer: B

The compound is cholesterol.

Cholesterol is a fat-like sterol found in all animal tissues and made by the liver. It is needed for cell membranes and for making steroid hormones and bile acids. High levels of LDL cholesterol in the blood lead to deposits (plaques) in the walls of arteries, the process of atherosclerosis, which narrows them and raises the risk of heart attack and stroke.

Glucagon is a pancreatic hormone that raises blood sugar, cortisol is an adrenal stress hormone and glucose is a simple sugar. None of them is fat-like or the substance deposited in atherosclerotic plaques.

Exercise Physiology Questions and Answers

Topics

Other Subjects

Tags: Exercise Physiology Questions and Answers

About Us

Exercise Physiology Questions and Answers

Topics

Other Subjects

Tags: Exercise Physiology Questions and Answers

About Us

Stay informed about all important Dates & Notifications