Question 1

Which of the following best describes the correct order of levels of structural organization in the human body, from simplest to most complex?

Accepted Answer

Chemical, Cellular, Tissue, Organ, Organ system, Organism

Question 2

A sodium atom loses one electron to become a sodium ion. What is the charge of this ion, and what is it called?

Accepted Answer

Positive; Cation

Question 3

Which of the following best explains why water is considered a polar molecule?

Accepted Answer

It has a partial positive charge on hydrogen and a partial negative charge on oxygen.

Question 4

A patient presents with a blood pH of 7.2. Which of the following best describes their condition?

Accepted Answer

Acidosis

Question 5

Which of the following is a function of the plasma membrane in human cells?

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 6

During mitosis, which phase is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 7

Which tissue type is primarily responsible for contraction and movement in the human body?

Accepted Answer

Muscle tissue

Question 8

A long bone contains both compact and spongy bone. Which of the following best describes the function of spongy bone?

Accepted Answer

Contains red bone marrow for hematopoiesis

Question 9

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone

Question 10

Which of the following best describes the role of ATP in muscle contraction?

Accepted Answer

ATP is required for myosin head detachment from actin

Question 11

Which of the following is the correct sequence of muscle structure from largest to smallest?

Accepted Answer

Muscle \u003e Fascicle \u003e Fiber \u003e Myofibril \u003e Sarcomere \u003e Myofilament

Question 12

Which of the following best describes the function of mitochondria in a cell?

Accepted Answer

Energy production through aerobic respiration

Question 13

Which of the following is a major function of the integumentary system?

Accepted Answer

Protection against environmental hazards

Question 14

Which of the following best explains the difference between covalent and ionic bonds?

Accepted Answer

Covalent bonds involve sharing electrons; ionic bonds involve transfer of electrons.

Question 15

Which of the following is a catabolic reaction?

Accepted Answer

Breakdown of glycogen into glucose

Question 16

A solution has a pH of 9. Which of the following statements is true?

Accepted Answer

It is basic and has a higher concentration of hydroxyl ions than hydrogen ions.

Question 17

Which of the following best describes the process of cytokinesis?

Accepted Answer

Division of the cytoplasm

Question 18

Which of the following is a general function of carbohydrates in the human body?

Accepted Answer

Providing energy for cellular processes

Question 19

During bone remodeling, which law states that bone grows and remodels in response to the forces placed upon it?

Accepted Answer

Wolff's law

Question 20

Which of the following best describes what happens to myofilaments during muscle contraction?

Accepted Answer

Myofilaments slide past each other, causing sarcomere shortening

Comprehensive Study Notes: Exam 4 Cumulative Material (Anatomy & Physiology)

Study Guide - Practice Questions