Question 1

Which of the following correctly lists the levels of biological organization in order from simplest to most complex?

Accepted Answer

Atom, molecule, macromolecule, organelle, cell, tissue, organ, organ system, organism

Question 2

Which statement best describes the relationship between tissues and organs?

Accepted Answer

Organs are made up of tissues that work together to perform a function.

Question 3

A scientist is studying the mitochondria within a cardiac muscle cell. At which level of biological organization is the scientist primarily working?

Accepted Answer

Cellular level

Question 4

Which of the following is NOT considered an organelle?

Accepted Answer

Heart

Question 5

If a mutation affects the structure of a protein in the plasma membrane of a cell, which level(s) of organization could potentially be affected?

Accepted Answer

Cellular, tissue, organ, organ system, and organism levels

Question 6

Which of the following best explains why cells are considered the smallest living units in the body?

Accepted Answer

Cells can carry out all the processes necessary for life.

Question 7

A group of cardiac muscle cells working together to contract the heart is an example of which level of organization?

Accepted Answer

Tissue level

Question 8

Which of the following is a correct example of an organ system and its primary function?

Accepted Answer

Cardiovascular system – transports nutrients and oxygen throughout the body

Question 9

Which of the following statements about organelles is TRUE?

Accepted Answer

Organelles are specialized structures within cells that perform specific functions.

Question 10

A patient has a genetic disorder that affects the structure of their cardiac muscle cells, leading to heart dysfunction. Which levels of organization are directly affected?

Accepted Answer

Cellular, tissue, organ, and organ system levels

Question 11

Which of the following best describes the difference between the chemical and cellular levels of organization?

Accepted Answer

The chemical level involves atoms and molecules, while the cellular level involves living cells composed of organelles.

Question 12

Which of the following is the correct sequence of organization for the heart, starting from the smallest component?

Accepted Answer

Cell → tissue → organ → organ system

Question 13

Which of the following is an example of an organ system working to maintain homeostasis?

Accepted Answer

The kidneys regulating blood pH by excreting hydrogen ions

Question 14

Which of the following is NOT a function of organelles within a cell?

Accepted Answer

Contracting to move the entire organism

Question 15

If a toxin disrupts the function of mitochondria in muscle cells, which process would be most directly affected?

Accepted Answer

ATP production

Question 16

Which of the following best describes the role of organ systems in an organism?

Accepted Answer

Organ systems work together to carry out the various processes of life in an individual.

Levels of Organization and Organ Systems: Foundations of Anatomy & Physiology

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