NASM CPT 7th Edition (Chapter 5)
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
What is the primary function of the cell membrane in human cells?
✔✔To regulate what enters and leaves the cell while maintaining structural integrity.
Which organelle is responsible for producing ATP?
✔✔The mitochondrion.
What role do ribosomes play inside the cell?
✔✔They synthesize proteins from amino acids.
Why is the nucleus considered the control center of the cell?
✔✔It stores DNA and directs cellular activities.
What type of tissue lines body cavities and organs?
✔✔Epithelial tissue.
What is the main function of connective tissue?
✔✔To support, bind, and protect other tissues.
Which tissue type is responsible for voluntary movement?
1
,✔✔Skeletal muscle tissue.
What distinguishes smooth muscle from skeletal muscle?
✔✔Smooth muscle contracts involuntarily and lacks striations.
What is the primary role of nervous tissue?
✔✔To transmit electrical signals for communication and control.
What is homeostasis in human biology?
✔✔The maintenance of stable internal conditions within the body.
Why is water essential for cellular function?
✔✔It serves as a solvent, temperature regulator, and medium for chemical reactions.
What does DNA primarily contain?
✔✔Genetic instructions for growth, repair, and function.
Which level of structural organization comes directly after cells?
✔✔Tissues.
What is the function of enzymes in the body?
✔✔To speed up chemical reactions without being consumed.
2
,What type of joint allows movement in one primary direction?
✔✔Hinge joint.
What is the main function of the skeletal system?
✔✔To provide structure, protection, and leverage for movement.
Why are bones considered living tissue?
✔✔They remodel, repair, and respond to stress.
What is the primary role of the muscular system?
✔✔To produce movement and maintain posture.
What does the cardiovascular system transport?
✔✔Oxygen, nutrients, hormones, and waste products.
What is the primary function of red blood cells?
✔✔To carry oxygen throughout the body.
Why is the respiratory system critical during exercise?
✔✔It supplies oxygen and removes carbon dioxide.
3
, What role does the digestive system play in human biology?
✔✔It breaks down food into absorbable nutrients.
What is the primary purpose of the endocrine system?
✔✔To regulate body functions through hormones.
What is a hormone?
✔✔A chemical messenger released into the bloodstream to affect target tissues.
Which system is responsible for filtering blood and producing urine?
✔✔The urinary system.
Why is the integumentary system important?
✔✔It protects the body and helps regulate temperature.
What is the function of the lymphatic system?
✔✔To support immune defense and fluid balance.
What is the primary role of white blood cells?
✔✔To fight infection and foreign invaders.
Why is the nervous system essential for movement?
4
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
What is the primary function of the cell membrane in human cells?
✔✔To regulate what enters and leaves the cell while maintaining structural integrity.
Which organelle is responsible for producing ATP?
✔✔The mitochondrion.
What role do ribosomes play inside the cell?
✔✔They synthesize proteins from amino acids.
Why is the nucleus considered the control center of the cell?
✔✔It stores DNA and directs cellular activities.
What type of tissue lines body cavities and organs?
✔✔Epithelial tissue.
What is the main function of connective tissue?
✔✔To support, bind, and protect other tissues.
Which tissue type is responsible for voluntary movement?
1
,✔✔Skeletal muscle tissue.
What distinguishes smooth muscle from skeletal muscle?
✔✔Smooth muscle contracts involuntarily and lacks striations.
What is the primary role of nervous tissue?
✔✔To transmit electrical signals for communication and control.
What is homeostasis in human biology?
✔✔The maintenance of stable internal conditions within the body.
Why is water essential for cellular function?
✔✔It serves as a solvent, temperature regulator, and medium for chemical reactions.
What does DNA primarily contain?
✔✔Genetic instructions for growth, repair, and function.
Which level of structural organization comes directly after cells?
✔✔Tissues.
What is the function of enzymes in the body?
✔✔To speed up chemical reactions without being consumed.
2
,What type of joint allows movement in one primary direction?
✔✔Hinge joint.
What is the main function of the skeletal system?
✔✔To provide structure, protection, and leverage for movement.
Why are bones considered living tissue?
✔✔They remodel, repair, and respond to stress.
What is the primary role of the muscular system?
✔✔To produce movement and maintain posture.
What does the cardiovascular system transport?
✔✔Oxygen, nutrients, hormones, and waste products.
What is the primary function of red blood cells?
✔✔To carry oxygen throughout the body.
Why is the respiratory system critical during exercise?
✔✔It supplies oxygen and removes carbon dioxide.
3
, What role does the digestive system play in human biology?
✔✔It breaks down food into absorbable nutrients.
What is the primary purpose of the endocrine system?
✔✔To regulate body functions through hormones.
What is a hormone?
✔✔A chemical messenger released into the bloodstream to affect target tissues.
Which system is responsible for filtering blood and producing urine?
✔✔The urinary system.
Why is the integumentary system important?
✔✔It protects the body and helps regulate temperature.
What is the function of the lymphatic system?
✔✔To support immune defense and fluid balance.
What is the primary role of white blood cells?
✔✔To fight infection and foreign invaders.
Why is the nervous system essential for movement?
4
