Q: Which equation best represents the energy requirement for primary active transport?

Energy required: $$\text{ATP} \rightarrow \text{ADP} + \text{P}$$

Q: Which equation best represents DNA replication?

$$\text{DNA} \rightarrow \text{DNA} + \text{DNA}$$

Question 1

Which of the following best describes the function of the plasma membrane in a typical human cell?

Accepted Answer

It regulates the movement of substances into and out of the cell.

Question 2

A cell is placed in a solution with a higher solute concentration than its cytosol. What will happen to the cell, and which term describes this solution?

Accepted Answer

The cell will shrink; the solution is hypertonic.

Question 3

Which of the following best explains the difference between cytoplasm and cytosol?

Accepted Answer

Cytoplasm includes the cytosol and organelles, while cytosol is the fluid portion within the cytoplasm.

Question 4

According to the fluid mosaic model, which statement about the plasma membrane is correct?

Accepted Answer

Lipids and proteins move freely within the membrane, creating a dynamic structure.

Question 5

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

Accepted Answer

Mitochondrion

Question 6

During facilitated diffusion, which equation best represents the movement of solutes across the plasma membrane?

Accepted Answer

Solute movement: $$\Delta C = C_{out} - C_{in}$$

Question 7

Which of the following best describes the process of osmosis?

Accepted Answer

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

Question 8

Which equation best represents the energy requirement for primary active transport?

Accepted Answer

Energy required: $$	ext{ATP} ightarrow 	ext{ADP} + 	ext{P}$$

Question 9

Which of the following is NOT a function of the Golgi apparatus?

Accepted Answer

Synthesis of ATP

Question 10

Which cytoskeletal component is primarily responsible for resisting tension and maintaining cell shape?

Accepted Answer

Intermediate filaments

Question 11

Which structure is responsible for organizing microtubules during cell division?

Accepted Answer

Centrioles

Question 12

Which of the following best describes the function of the nucleolus?

Accepted Answer

It synthesizes ribosomal RNA.

Question 13

During protein synthesis, which process occurs first?

Accepted Answer

Transcription

Question 14

Which equation best represents DNA replication?

Accepted Answer

$$	ext{DNA} ightarrow 	ext{DNA} + 	ext{DNA}$$

Question 15

Which stage of the cell cycle is characterized by DNA replication?

Accepted Answer

S phase

Question 16

Which term best describes the study of tissues?

Accepted Answer

Histology

Question 17

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

Accepted Answer

Gap junctions

Question 18

Which epithelial tissue type is best suited for absorption and secretion in the intestines?

Accepted Answer

Simple columnar epithelium

Question 19

Which connective tissue type is found in tendons and ligaments, and what is its primary function?

Accepted Answer

Dense regular connective tissue; resists tension in one direction

Question 20

Which membrane lines body cavities that do NOT open to the exterior and secretes a watery fluid?

Accepted Answer

Serous membrane

Cell Structure, Function, and Histology: Study Notes for Anatomy & Physiology

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