Question 1

Which of the following statements is NOT a part of the Cell Theory?

Accepted Answer

All cells contain a nucleus surrounded by a membrane.

Question 2

Which structure is present in prokaryotic cells but absent in eukaryotic animal cells?

Accepted Answer

Rigid cell wall

Question 3

Why are cells generally small in size? Choose the BEST explanation.

Accepted Answer

Small cells have a higher surface area-to-volume ratio, allowing efficient exchange of materials.

Question 4

A scientist wants to observe the 3-dimensional surface of a cell at very high magnification. Which microscope should they use?

Accepted Answer

Scanning electron microscope

Question 5

Which of the following is a function of the nucleolus?

Accepted Answer

Assembly of ribosomal components

Question 6

A cell is observed to have many mitochondria. What can you infer about this cell?

Accepted Answer

It is likely involved in high levels of energy-consuming activities.

Question 7

Which organelle is responsible for refining, sorting, and packaging proteins and lipids for delivery to their destinations?

Accepted Answer

Golgi apparatus

Question 8

A mutation prevents the formation of microtubules in a cell. Which of the following processes would be most directly affected?

Accepted Answer

Movement of cilia and flagella

Question 9

Which of the following best describes the function of lysosomes?

Accepted Answer

Digest damaged organelles and cellular debris

Question 10

A cell from the human digestive tract has many microvilli. What is the main advantage of this adaptation?

Accepted Answer

Increases the surface area for absorption

Question 11

Which of the following is NOT a function of the plasma membrane?

Accepted Answer

Synthesizes proteins

Question 12

Which of the following correctly matches the organelle with its function?

Accepted Answer

Golgi apparatus – packaging and shipping of macromolecules

Question 13

A cell is exposed to a toxin that inhibits vesicle formation. Which process would be most directly affected?

Accepted Answer

Transport of materials between organelles

Question 14

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, prokaryotic cells do not.

Question 15

Which of the following best explains why muscle cells contain more mitochondria than skin cells?

Accepted Answer

Muscle cells require more energy for contraction.

Question 16

A scientist observes a cell with a large, central nucleus, many small organelles, and a flexible plasma membrane. Which type of cell is this most likely to be?

Accepted Answer

Eukaryotic animal cell

Question 17

Which of the following organelles is directly involved in the synthesis of proteins?

Accepted Answer

Ribosome

Question 18

If a cell's lysosomes are nonfunctional, what would be the most likely consequence?

Accepted Answer

Accumulation of undigested cellular debris

Question 19

Which of the following best describes the role of the cytoskeleton?

Accepted Answer

Provides structural support and anchors organelles

Question 20

A sperm cell is able to move efficiently due to the presence of which structure?

Accepted Answer

Flagellum

Structure and Function of Cells: An Introduction to Cell Biology

Study Guide - Practice Questions

Study Guide - Flashcards