About this Study Set
This study set covers Sports Science through
18 practice questions.
A collection of multiple-choice questions covering physiology, biomechanics, and nutrition in sports. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Sports Science Fundamentals study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which molecule is the primary source of chemical energy for muscle contraction?
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A
Glucose
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B
Adenosine triphosphate (ATP)
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C
Lactic acid
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D
Hemoglobin
2
What is the primary function of red blood cells during strenuous physical activity?
-
A
To produce hormones
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B
To repair muscle tissue
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C
To transport oxygen to muscles
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D
To regulate body temperature
3
Which type of muscle fiber is best suited for endurance activities like long-distance running?
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A
Type I (slow-twitch)
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B
Type IIa (fast-twitch oxidative)
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C
Type IIx (fast-twitch glycolytic)
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D
Smooth muscle
4
What is the term for the physiological process of building new muscle tissue through resistance training?
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A
Atrophy
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B
Hypertrophy
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C
Homeostasis
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D
Vasodilation
5
Which nutrient is considered the primary fuel source for high-intensity, short-duration exercise?
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A
Protein
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B
Fat
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C
Fiber
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D
Carbohydrates
6
Where in the human body is the primary site of aerobic energy production?
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A
Nucleus
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B
Ribosomes
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C
Mitochondria
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D
Cell membrane
7
Which organ is responsible for filtering metabolic waste, such as urea, from the blood during exercise?
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A
Liver
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B
Kidneys
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C
Pancreas
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D
Gallbladder
8
What is the main role of tendons in the human musculoskeletal system?
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A
Connecting bone to bone
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B
Connecting muscle to bone
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C
Lubricating joints
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D
Producing white blood cells
9
Which heart chamber is responsible for pumping oxygenated blood to the rest of the body?
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A
Right atrium
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B
Left atrium
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C
Right ventricle
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D
Left ventricle
10
What physical law explains why athletes lean into a curve while running to maintain balance?
-
A
Newton's First Law
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B
Centripetal force
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C
Law of Reflection
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D
Thermodynamics
11
Which vitamin is essential for the absorption of calcium to maintain bone density in athletes?
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A
Vitamin A
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B
Vitamin C
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C
Vitamin D
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D
Vitamin K
12
What is the primary component of muscle tissue?
-
A
Fat
-
B
Protein
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C
Carbohydrate
-
D
Water
13
What does VO2 max measure?
-
A
Maximum heart rate
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B
Maximum oxygen consumption
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C
Muscle mass percentage
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D
Recovery time
14
Which bodily system is most responsible for the immediate 'fight or flight' response during a sports match?
-
A
Digestive system
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B
Endocrine system
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C
Sympathetic nervous system
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D
Lymphatic system
15
Which substance builds up in muscles during intense anaerobic exercise, contributing to fatigue?
-
A
Lactic acid
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B
Creatine
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C
Glycogen
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D
Dopamine
16
Which joint type allows for the greatest range of motion in the human body?
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A
Hinge joint
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B
Ball-and-socket joint
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C
Pivot joint
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D
Saddle joint
17
What is the primary function of electrolytes like sodium and potassium in athletes?
-
A
Building muscle mass
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B
Regulating nerve impulses and fluid balance
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C
Increasing red blood cell count
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D
Storing energy for later use
18
What is the main role of the alveoli in the respiratory system?
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A
Humidifying inhaled air
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B
Filtering dust particles
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C
Gas exchange between air and blood
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D
Protecting the lungs from infection
