Q: Which formula correctly represents the hydrolysis of ATP to ADP?

$$\mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P}_i + \text{energy}$$

Q: Which equation represents the formation of a peptide bond between two amino acids?

$$\text{Amino acid}_1 + \text{Amino acid}_2 \rightarrow \text{Dipeptide} + \mathrm{H}_2\mathrm{O}$$

Question 1

Which of the following best describes the anatomical position used as a reference in directional and regional terminology?

Accepted Answer

Standing upright, facing forward, arms at sides with palms facing forward

Question 2

Which body plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Question 3

Arrange the following levels of organization from smallest to largest: cell, organ, tissue, organ system.

Accepted Answer

Cell, tissue, organ, organ system

Question 4

A patient is experiencing high blood glucose levels. The pancreas releases insulin, which lowers blood glucose back to normal. What type of feedback loop is this?

Accepted Answer

Negative feedback loop

Question 5

Which of the following is NOT one of the five components of a feedback loop?

Accepted Answer

Stimulus

Question 6

Water is essential for life due to its special properties. Which property allows water to dissolve many substances, making it an excellent solvent?

Accepted Answer

Polarity

Question 7

Which of the following is NOT a major macromolecule found in the human body?

Accepted Answer

Electrolytes

Question 8

ATP is the primary energy molecule of the cell. Which part of the ATP molecule is responsible for storing and releasing energy?

Accepted Answer

The phosphate groups

Question 9

Which formula correctly represents the hydrolysis of ATP to ADP?

Accepted Answer

$$\mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P}_i + 	ext{energy}$$

Question 10

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

Accepted Answer

Storing energy

Question 11

Phospholipids are critical for cell membrane structure. Which part of a phospholipid is hydrophobic?

Accepted Answer

Fatty acid tails

Question 12

Cholesterol is a type of lipid classified as a sterol. What is its primary function in the plasma membrane?

Accepted Answer

Increasing membrane fluidity and stability

Question 13

Which of the following correctly matches a tissue type with its primary function?

Accepted Answer

Connective tissue: support and protection

Question 14

A patient has damage to their desmosomes. Which function would be most affected?

Accepted Answer

Cell-to-cell adhesion under mechanical stress

Question 15

Which intercellular junction allows ions and small molecules to pass directly between adjacent cells?

Accepted Answer

Gap junction

Question 16

Which of the following best explains why water has a high specific heat?

Accepted Answer

Hydrogen bonding between water molecules

Question 17

Which equation represents the formation of a peptide bond between two amino acids?

Accepted Answer

$$	ext{Amino acid}_1 + 	ext{Amino acid}_2 ightarrow 	ext{Dipeptide} + \mathrm{H}_2\mathrm{O}$$

Question 18

A patient is unable to maintain homeostasis due to a malfunction in the control center of a feedback loop. Which component is most likely failing?

Accepted Answer

Control center

Question 19

Which of the following best describes the difference between positive and negative feedback loops?

Accepted Answer

Positive feedback amplifies the original stimulus, while negative feedback reduces it

Question 20

Which tissue type is primarily responsible for rapid communication and control in the body?

Accepted Answer

Nervous tissue

Foundations of Anatomy & Physiology: Study Guide on Body Organization, Homeostasis, and Biomolecules

Study Guide - Practice Questions

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