Question 1

According to the cell theory, which of the following statements is NOT correct?

Accepted Answer

Cells can arise spontaneously from non-living matter.

Question 2

Which of the following is an exception to the cell theory as indicated in the study material?

Accepted Answer

Viruses

Question 3

Which structure is present in both prokaryotic and eukaryotic cells?

Accepted Answer

Plasma membrane

Question 4

A scientist observes a cell with no defined nucleus and no membrane-bound organelles. According to the diagram, this cell is most likely:

Accepted Answer

A prokaryotic cell

Question 5

Which organelle is responsible for energy production in eukaryotic cells?

Accepted Answer

Mitochondria

Question 6

Which of the following is found only in plant cells and not in animal cells?

Accepted Answer

Chloroplast

Question 7

If a cell contains a large central vacuole, which type of cell is it most likely to be?

Accepted Answer

Plant cell

Question 8

Which of the following best describes the function of ribosomes?

Accepted Answer

Synthesize proteins

Question 9

A cell is observed to have a nucleus, mitochondria, and a plasma membrane. Which classification does it belong to?

Accepted Answer

Eukaryote

Question 10

Which of the following equations best represents the process of cellular respiration occurring in mitochondria?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP$$

Question 11

Which of the following statements about viruses is correct based on the diagram?

Accepted Answer

Viruses are exceptions to the cell theory.

Question 12

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 13

A cell is observed to have both mitochondria and chloroplasts. Which process can this cell perform that an animal cell cannot?

Accepted Answer

Photosynthesis

Question 14

Which of the following best describes the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

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

Question 15

Which of the following is NOT considered an organelle?

Accepted Answer

Plasma membrane

Question 16

If a mutation prevents the formation of centrioles, which cellular process would be most directly affected?

Accepted Answer

Cell division

Question 17

Which of the following best explains why viruses are not classified as living organisms?

Accepted Answer

They cannot reproduce independently.

Question 18

Which of the following is a function of the cytoplasm?

Accepted Answer

Provides a medium for chemical reactions

Question 19

Which of the following structures is found in animal cells but not in plant cells?

Accepted Answer

Centrioles

Question 20

A scientist is studying a cell that contains a plasma membrane, cytoplasm, and genetic material, but no nucleus. Which type of cell is this?

Accepted Answer

Prokaryotic cell

Overview of Cells: Structure, Types, and Organelles

Study Guide - Practice Questions