Question 1

A patient is experiencing muscle weakness due to a defect in the organelle responsible for ATP production. Which organelle is most likely affected, and what is its primary function?

Accepted Answer

Mitochondria; produces ATP through cellular respiration

Question 2

Which of the following best describes the difference between anatomy and physiology?

Accepted Answer

Anatomy is concerned with the structure of body parts, while physiology focuses on their function.

Question 3

A scientist is studying the process by which water moves across a cell membrane toward a region of higher solute concentration. Which type of membrane transport is being observed, and does it require ATP?

Accepted Answer

Osmosis; does not require ATP

Question 4

Which of the following best illustrates negative feedback in homeostasis?

Accepted Answer

Shivering to increase body temperature when cold

Question 5

A tissue sample is observed to have cells that contract to produce movement. Which tissue type is this, and what is a key characteristic?

Accepted Answer

Muscle; contracts to produce movement

Question 6

A molecule is formed by the removal of water to join two smaller molecules. What is this process called, and what type of reaction is it?

Accepted Answer

Dehydration synthesis; anabolic

Question 7

Which of the following correctly matches a cytoskeletal component with its function?

Accepted Answer

Intermediate filaments; provide strength

Question 8

A cell is observed to move sodium ions against their concentration gradient. Which type of transport is this, and what is required for the process?

Accepted Answer

Active transport; ATP required

Question 9

Which of the following is the correct sequence for the levels of organization in the human body, from simplest to most complex?

Accepted Answer

Chemical → Cellular → Tissue → Organ → Organ System → Organism

Question 10

A patient has a genetic disorder affecting the number of protons in their atoms. Which property of the atom is directly altered?

Accepted Answer

Atomic number

Question 11

Which of the following best describes the function of the Golgi apparatus in a pancreatic cell that secretes insulin?

Accepted Answer

Packages and ships insulin for secretion

Question 12

A surgeon makes an incision that divides the body into anterior and posterior sections. Which anatomical plane is used?

Accepted Answer

Frontal (Coronal)

Question 13

Which of the following is an example of positive feedback in the human body?

Accepted Answer

Blood clotting after a vessel injury

Question 14

A student is asked to identify the type of chemical bond formed when sodium donates an electron to chlorine. Which bond is this, and what is the result?

Accepted Answer

Ionic bond; atoms transfer electrons

Question 15

Which of the following best describes the process of hydrolysis?

Accepted Answer

Breaks down molecules by adding water

Question 16

A neuron transmits an electrical impulse from the brain to a muscle. Which tissue type is primarily responsible for this function?

Accepted Answer

Nervous

Question 17

Which of the following equations correctly represents the calculation of atomic mass?

Accepted Answer

$	ext{Atomic mass} = 	ext{protons} + 	ext{neutrons}$

Question 18

A cell is observed to have an extensive rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Protein modification and synthesis

Question 19

Which of the following best describes the direction of water movement during osmosis?

Accepted Answer

Water moves toward higher solute concentration

Question 20

A patient is unable to store energy efficiently in their tissues. Which tissue type is most likely malfunctioning, and what is a key feature of this tissue?

Accepted Answer

Connective; stores energy and has a matrix

Introduction to Anatomy & Physiology: Key Concepts and Foundations

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