Question 1

Which of the following best describes the function of the Golgi apparatus in a eukaryotic cell?

Accepted Answer

It stores, alters, and packages secretory products and lysosomal enzymes.

Question 2

A patient is experiencing muscle weakness due to a defect in the organelle responsible for producing most of the cell's ATP. Which organelle is most likely affected?

Accepted Answer

Mitochondria

Question 3

During which phase of the cell cycle does DNA replication occur, and what is the main purpose of this phase?

Accepted Answer

S phase; to duplicate the chromosomes

Question 4

Which of the following best explains why water is considered a 'universal solvent' in biological systems?

Accepted Answer

Water can dissolve many substances, making it crucial for chemical reactions in the body.

Question 5

A cell is placed in a solution and water moves into the cell by osmosis. Which of the following best describes the process of osmosis?

Accepted Answer

Movement of water through a semi-permeable membrane from an area of low solute concentration to high solute concentration.

Question 6

Which of the following best distinguishes between DNA and RNA?

Accepted Answer

DNA is double-stranded and contains deoxyribose; RNA is single-stranded and contains ribose.

Question 7

A scientist observes a cell using a sodium-potassium pump to move sodium ions out of the cell and potassium ions into the cell. Which type of membrane transport is being used?

Accepted Answer

Primary active transport

Question 8

Which of the following is an example of negative feedback in homeostasis?

Accepted Answer

Body temperature rises, triggering sweating to cool the body back to normal.

Question 9

Which of the following best describes the function of the skeletal system?

Accepted Answer

Provides support and protection for other tissues, stores minerals, and forms blood cells.

Question 10

A cell engulfs a large particle by wrapping its membrane around it and forming a vesicle. What is this process called?

Accepted Answer

Endocytosis

Question 11

Which of the following best explains why sweating cools the body?

Accepted Answer

Sweat absorbs heat as it evaporates, removing heat from the skin.

Question 12

Which of the following is a characteristic of facilitated diffusion?

Accepted Answer

It uses carrier proteins to move substances down their concentration gradient without energy input.

Question 13

A patient has a genetic disorder affecting the structure of their connective tissue. Which of the following is NOT a function of connective tissue?

Accepted Answer

Coordinating voluntary muscle contraction

Question 14

Which of the following best describes the difference between histology and pathological physiology?

Accepted Answer

Histology studies tissues and their functions, while pathological physiology studies how diseases affect organ or system function.

Question 15

Which of the following best describes the role of the nervous system in homeostatic regulation?

Accepted Answer

It provides rapid, short-term responses to environmental changes.

Question 16

Which of the following best describes a covalent bond?

Accepted Answer

It involves the sharing of electrons between atoms, creating a stable molecule.

Question 17

A person is unable to properly digest and remove damaged organelles from their cells. Which organelle is most likely malfunctioning?

Accepted Answer

Lysosome

Question 18

Which of the following best describes the function of the cardiovascular system?

Accepted Answer

Distributes blood, nutrients, gases, and helps control body temperature.

Question 19

Which of the following is a correct sequence of events during mitosis?

Accepted Answer

Prophase, Metaphase, Anaphase, Telophase

Question 20

A cell is using secondary active transport to move glucose into the cell. Which of the following best describes this process?

Accepted Answer

It uses the energy stored in an ion gradient, often created by primary active transport, to move glucose.

Foundations of Anatomy & Physiology: Cells, Systems, and Homeostasis

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