Question 1

Which of the following best describes the principle of complementarity of structure and function in human anatomy and physiology?

Accepted Answer

Function always reflects structure; what a structure can do depends on its specific form.

Question 2

A physiologist is most likely to be interested in which of the following research questions?

Accepted Answer

How does the liver regulate blood glucose levels after a meal?

Question 3

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

Accepted Answer

Cell, tissue, organ, organ system, organism

Question 4

Which organelle is primarily responsible for producing ATP, and why is it often called the 'power plant' of the cell?

Accepted Answer

Mitochondrion, because it generates ATP through cellular respiration

Question 5

A patient has a genetic defect that prevents the formation of lysosomes. Which of the following cellular processes would be most directly affected?

Accepted Answer

Digestion of ingested bacteria and worn-out organelles

Question 6

Which of the following best explains why the walls of alveoli in the lungs are extremely thin?

Accepted Answer

To allow efficient gas exchange between air and blood

Question 7

Which of the following is NOT a function of the Golgi apparatus?

Accepted Answer

Synthesizing ATP

Question 8

A scientist is studying the movement of cilia in respiratory tract cells. Which cytoskeletal component and organelle are most directly involved in this process?

Accepted Answer

Microtubules and centrioles

Question 9

Which of the following best describes the role of peroxisomes in the cell?

Accepted Answer

They neutralize free radicals and break down fatty acids.

Question 10

Which of the following is an example of the complementarity of structure and function at the organ level?

Accepted Answer

The heart has valves that prevent backflow, allowing blood to flow in one direction.

Question 11

A cell is observed to have an extensive rough endoplasmic reticulum (RER). Which function is this cell most likely specialized for?

Accepted Answer

Synthesis of large amounts of proteins for export

Question 12

Which of the following best describes the function of the extracellular matrix?

Accepted Answer

It acts as a glue to hold cells together.

Question 13

Which of the following is a correct pairing of a body tissue type and its main function?

Accepted Answer

Connective tissue – support and binding of other tissues

Question 14

A mutation causes a cell to lack functional centrioles. Which process would be most directly impaired?

Accepted Answer

Formation of the mitotic spindle during cell division

Question 15

Which of the following best explains why red blood cells are shaped like biconcave discs?

Accepted Answer

To increase their surface area for gas exchange

Question 16

A patient is diagnosed with a disease that affects the cytoskeleton, specifically the microtubules. Which of the following cellular processes is most likely to be disrupted?

Accepted Answer

Movement of cilia and flagella

Question 17

Which of the following best describes the function of microvilli on the surface of intestinal epithelial cells?

Accepted Answer

To increase surface area for absorption

Question 18

Which of the following is a real-life example of the importance of the plasma membrane's selective permeability?

Accepted Answer

Red blood cells maintain their internal ion concentration despite changes in blood plasma composition.

Question 19

A researcher is studying a cell that is highly active in detoxifying alcohol and other harmful substances. Which organelle is likely to be especially abundant in this cell?

Accepted Answer

Peroxisomes

Question 20

A cell is observed to have a large number of secretory vesicles. Which pathway of the Golgi apparatus is most active in this cell?

Accepted Answer

Pathway A: Secretory vesicles releasing contents by exocytosis

Introduction to Anatomy & Physiology: Cellular and Structural Organization

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