Question 1

Which of the following best describes the relationship between anatomy and physiology?

Accepted Answer

Anatomy is the study of body structure, while physiology is the study of body function; both are intertwined because structure determines function.

Question 2

A patient presents with symptoms of fainting and muscle tremors. Blood tests reveal a blood pH of 7.0. Which of the following best explains the physiological basis for these symptoms?

Accepted Answer

The patient's blood is too acidic, disrupting enzyme function and nervous system activity.

Question 3

Which imaging technique is best suited for visualizing soft tissues, such as the brain, without exposing the patient to ionizing radiation?

Accepted Answer

Magnetic resonance imaging (MRI)

Question 4

Which of the following is an example of a negative feedback mechanism in the human body?

Accepted Answer

Regulation of blood glucose levels by insulin and glucagon

Question 5

A person consumes a large amount of aspirin, which is acidic. What is the expected effect on their blood pH, and what physiological consequences might result?

Accepted Answer

Blood pH will decrease, potentially causing tremors, fainting, or paralysis.

Question 6

Which of the following best describes the structure of a phospholipid and its role in the cell membrane?

Accepted Answer

A phospholipid has a hydrophilic head and two hydrophobic tails, forming the structural foundation of cell membranes.

Question 7

Which of the following statements about enzymes is correct?

Accepted Answer

Enzymes lower the activation energy of chemical reactions and are specific to their substrates.

Question 8

A patient is found to have a genetic mutation that changes the sequence of amino acids in a protein. Which of the following is the most likely consequence?

Accepted Answer

The protein may fold incorrectly, resulting in loss of function.

Question 9

Which of the following best explains why trans fats are considered more harmful than unsaturated fats?

Accepted Answer

Trans fats pack tightly and remain in circulation longer, increasing the risk of coronary heart disease.

Question 10

Which of the following best describes the role of ATP in cellular metabolism?

Accepted Answer

ATP stores energy from glucose oxidation and releases it for cellular work when a phosphate group is removed.

Question 11

A researcher is studying a molecule with the formula $$C_6H_{12}O_6$. Which class of biomolecule does this represent, and what is its primary function?

Accepted Answer

Monosaccharide; provides quick energy for cells.

Question 12

Which of the following is a correct example of complementary base pairing in DNA?

Accepted Answer

Adenine (A) pairs with Thymine (T)

Question 13

A patient is unable to digest lactose. Which enzyme is most likely deficient, and what is the consequence?

Accepted Answer

Lactase; lactose is not broken down into glucose and galactose.

Question 14

Which of the following best describes the difference between saturated and unsaturated fatty acids?

Accepted Answer

Saturated fatty acids have no double bonds and are solid at room temperature; unsaturated fatty acids have one or more double bonds and are liquid at room temperature.

Question 15

Which of the following is a function of proteins in the human body?

Accepted Answer

Catalyzing chemical reactions as enzymes

Question 16

A person is exposed to extreme heat, causing their body temperature to rise. Which component of a negative feedback loop first detects this change?

Accepted Answer

Receptor

Question 17

Which of the following best explains why proteins denature at high temperatures?

Accepted Answer

High temperatures disrupt the hydrogen bonds and other interactions that maintain protein shape, causing loss of function.

Question 18

Which of the following best describes the difference between DNA and RNA?

Accepted Answer

DNA contains deoxyribose and thymine, while RNA contains ribose and uracil.

Question 19

A person has a genetic mutation that prevents the production of ATP. Which of the following processes would be most directly affected?

Accepted Answer

Muscle contraction

Major Themes and Foundations of Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards