CLEP Biology Organismal Biology & Physiology

Question 1

What is the primary function of the circulatory system?

Accepted Answer

To transport substances throughout the body

Answer

The circulatory system, comprising the heart, blood vessels, and blood, is primarily responsible for transporting vital substances throughout the body. This includes oxygen and nutrients to cells, and waste products like carbon dioxide and metabolic wastes away from cells for excretion.

Question 2

Which organ system is primarily responsible for gas exchange?

Accepted Answer

Respiratory system

Answer

The respiratory system, which includes the lungs, trachea, and bronchi, is primarily responsible for gas exchange. It facilitates the intake of oxygen from the atmosphere into the bloodstream and the removal of carbon dioxide from the blood into the atmosphere.

Question 3

Which structure is responsible for filtering blood in the human body?

Accepted Answer

Kidney

Answer

The kidneys are vital organs in the human body responsible for filtering blood. They remove waste products, excess water, and toxins to produce urine, playing a crucial role in maintaining fluid and electrolyte balance, as well as blood pressure regulation.

Question 4

Which part of the nervous system is responsible for involuntary actions?

Accepted Answer

Autonomic nervous system

Answer

The autonomic nervous system (ANS) is a division of the peripheral nervous system that controls involuntary bodily functions. These include heart rate, digestion, respiration, pupillary response, and urination, operating without conscious thought.

Question 5

Which of the following is NOT part of the digestive system?

Accepted Answer

Kidneys

Answer

The kidneys are part of the excretory system, responsible for filtering blood and producing urine, not the digestive system. The stomach, small intestine, and liver are all integral components of the digestive system, involved in breaking down food and absorbing nutrients.

CLEP Practice Test

CLEP Practice Test

CLEP Biology Organismal Biology & Physiology