with correct answers Latest Update
2025/2026 GRADED A+
Which molecule is the energy currency of the cell? - correct answeradenosine
triphosphate (ATP)
Which digestive organ has both endocrine and exocrine functions? - correct
answerpancreas
What calculation estimates the primary macronutrient the body uses for energy at a
given point in time? - correct answerrespiratory quotient
Which branch of the nervous system is responsible for "fight-or-flight"? - correct
answersympathetic nervous system
Which type of bone protects internal organs and provides a large surface area for
muscles to attach? - correct answerflat bone
Which of the following is included in the axial skeleton? - correct answerskull
According to the size principle of motor recruitment, in what order will muscle fibers be
recruited during activity? - correct answersmallest and slowest firing rate to largest and
fastest firing rate
Which type of muscle is the most common in the human body? - correct answerskeletal
muscle
Which division of the peripheral nervous system controls voluntary movement like
exercise? - correct answersomatic nervous system
What is the central nervous system (CNS) responsible for? - correct answerreceiving
sensory input and organizing, analyzing, and processing neural information
What is the term for blood circulation within the heart and lungs? - correct
answerpulmonary circulation
Which heart structure is known as the pacemaker of the heart and initiates contraction
of the right atrium? - correct answersinoatrial (SA) node
, In which anatomical plane does the internal and external rotation of the shoulder occur?
- correct answertransverse plane
According to the American Heart Association, what is considered a 'normal' blood
pressure? - correct answer120/80 mm Hg
Which energy pathway produces the greatest amount of ATP? - correct answeroxidative
energy pathway
Which organ is the largest lymphatic organ in the body? - correct answerthe spleen
Which endocrine hormone promotes the uptake of glucose from the blood by target
tissues? - correct answerinsulin
What neural function is processed directly by the spinal cord and not the brain? - correct
answera reflex
What class of hormones is released by the adrenal glands during times of stress? -
correct answercatecholamines
Which digestive organ is responsible for the storage of fat-soluble vitamins and blood
filtration and detoxification? - correct answerliver
The process of glycolysis is the breakdown of what molecule in the body? - correct
answerglucose
Which energy pathway is dominant when the body is at rest or during low-intensity,
long-duration activity? - correct answeroxidative energy pathway
What is the process of breaking triglycerides down into fatty acids to be converted to
acetyl-CoA during aerobic metabolism called? - correct answerbeta-oxidation
What is the primary muscle involved in pulmonary ventilation? - correct
answerdiaphragm
Which two macronutrients are the most preferred sources of energy in the body? -
correct answercarbohydrate and fat
What is the name of the heart valves located between the atria and ventricles that keep
blood moving in only one direction? - correct answeratrioventricular (AV) valves
Which glands of the endocrine system produce and release substances through ducts
or openings on the body's surfaces? - correct answerexocrine glands
Where in the cell do the Krebs cycle and electron transport chain occur? - correct
answermitochondria