$$\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6 \mathrm{O}_2 \rightarrow 6 \mathrm{CO}_2 + 6 \mathrm{H}_2\mathrm{O} + \text{energy}$$

Question 1

Which of the following best describes the difference between cytology and histology?

Accepted Answer

Cytology focuses on the structure and function of cells, while histology examines the organization and structure of tissues.

Question 2

Homeostasis is crucial for maintaining internal stability. Which of the following is an example of a negative feedback loop in the human body?

Accepted Answer

Regulation of blood glucose by insulin

Question 3

Which equation correctly represents the metabolism equation for cellular respiration?

Accepted Answer

$$\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6 \mathrm{O}_2 ightarrow 6 \mathrm{CO}_2 + 6 \mathrm{H}_2\mathrm{O} + 	ext{energy}$$

Question 4

A patient is experiencing muscle weakness due to a malfunction in the sodium-potassium pump. Which process is most directly affected?

Accepted Answer

Active transport of ions across the cell membrane

Question 5

Which of the following best explains why water is considered a universal solvent?

Accepted Answer

Water is polar, allowing it to dissolve many ionic and polar substances.

Question 6

Which type of chemical bond is least likely to dissolve in water?

Accepted Answer

Covalent bond

Question 7

Which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 8

Which of the following is NOT a major function of membrane proteins?

Accepted Answer

Synthesizing DNA

Question 9

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 10

Which of the following best describes the role of enzymes in chemical reactions?

Accepted Answer

Enzymes lower the activation energy, increasing the rate of reactions.

Question 11

Which of the following is an example of a dehydration synthesis reaction?

Accepted Answer

Forming a peptide bond between two amino acids

Question 12

A cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink

Question 13

Which of the following is a correct hierarchy of structural levels in the human body, from smallest to largest?

Accepted Answer

Cell, tissue, organ, organ system, organism

Question 14

Which of the following statements about the Central Dogma of Biology is correct?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 15

Which of the following best describes the function of ribosomes?

Accepted Answer

Synthesize proteins

Question 16

Which of the following is a property of hydrophobic molecules?

Accepted Answer

They repel water and aggregate together.

Question 17

Which of the following is true about the structure of DNA?

Accepted Answer

DNA consists of two antiparallel strands held together by hydrogen bonds between complementary bases.

Question 18

Which of the following is a function of the cytoskeleton?

Accepted Answer

Providing structural support and facilitating cell movement

Question 19

Which of the following best describes the process of osmosis?

Accepted Answer

Movement of water from low to high solute concentration across a semipermeable membrane

Comprehensive Study Guide: Foundations of Anatomy & Physiology

Study Guide - Practice Questions