Question 1

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

Accepted Answer

Anatomy is the study of structure, and physiology is the study of function; structure and function are inseparable.

Question 2

A patient is experiencing muscle cramps due to an electrolyte imbalance. Which inorganic ion is most likely involved in muscle contraction and nerve conduction?

Accepted Answer

Ca$$^{2+}$$

Question 3

Which of the following best illustrates a negative feedback mechanism in homeostasis?

Accepted Answer

Sweating to cool the body when body temperature rises above normal.

Question 4

A cell is placed in a hypotonic solution. What will most likely happen to the cell, and why?

Accepted Answer

The cell will swell because water moves in.

Question 5

Which of the following is a correct example of a decomposition (catabolic) reaction?

Accepted Answer

$$AB \rightarrow A + B$$

Question 6

A patient with a blood pH of 7.1 is experiencing which condition, and what is the normal blood pH range?

Accepted Answer

Acidosis; normal range is $$7.35-7.45$$

Question 7

Which organelle is responsible for ATP production and is often referred to as the 'powerhouse' of the cell?

Accepted Answer

Mitochondrion

Question 8

A mutation causes a cell to lose its ability to synthesize proteins. Which organelle is most likely malfunctioning?

Accepted Answer

Ribosome

Question 9

Which of the following best describes the function of buffers in the human body?

Accepted Answer

Buffers maintain a stable pH by neutralizing acids and bases.

Question 10

A person is unable to absorb nutrients efficiently due to a loss of surface area in the small intestine. Which structure is most likely damaged?

Accepted Answer

Microvilli

Question 11

Which of the following best explains why water is essential for life?

Accepted Answer

It acts as a solvent, regulates temperature, and is involved in chemical reactions.

Question 12

A scientist is studying a molecule with a hydrophilic head and two hydrophobic tails. This molecule is most likely:

Accepted Answer

A phospholipid

Question 13

Which of the following best describes the function of the rough endoplasmic reticulum (RER)?

Accepted Answer

Protein synthesis and transport

Question 14

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 15

A patient is diagnosed with a genetic disorder affecting collagen, a major protein in connective tissue. Which level of structural organization is primarily affected?

Accepted Answer

Tissue

Question 16

Which of the following best describes the difference between passive and active membrane transport?

Accepted Answer

Passive transport moves substances down their concentration gradient without ATP; active transport moves substances against their gradient using ATP.

Question 17

A cell is observed to engulf a bacterium by wrapping its membrane around it and internalizing it. This process is best described as:

Accepted Answer

Phagocytosis

Question 18

Which of the following best describes the function of lysosomes?

Accepted Answer

Digest and break down cellular waste and foreign material

Question 19

A patient has a mutation that prevents the formation of hydrogen bonds between DNA strands. Which property of hydrogen bonds is most relevant to this scenario?

Accepted Answer

Hydrogen bonds are weak attractions between polar molecules, crucial for DNA structure.

Question 20

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, facing forward, arms at sides, palms facing forward

Introduction to Human Anatomy & Physiology: Foundational Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard