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 of the following structures is found 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 a unique feature of plant cells compared to animal cells?

Accepted Answer

Presence of a cell wall

Question 7

If a cell contains a large central vacuole, chloroplasts, and a cell wall, it is most likely:

Accepted Answer

A plant cell

Question 8

Which of the following best describes the function of ribosomes?

Accepted Answer

Protein synthesis

Question 9

A cell is observed to have a nucleus, mitochondria, and endoplasmic reticulum. According to the diagram, this cell is:

Accepted Answer

A eukaryotic cell

Question 10

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

Accepted Answer

Mitochondria – energy production

Question 11

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

Accepted Answer

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

Question 12

Which of the following statements about viruses is supported by the diagram?

Accepted Answer

Viruses are exceptions to the cell theory.

Question 13

Which of the following is NOT considered a basic part of all cells according to the diagram?

Accepted Answer

Chloroplast

Question 14

A student observes a cell with a plasma membrane, cytoplasm, and genetic material, but no nucleus. This cell is most likely:

Accepted Answer

A prokaryotic cell

Question 15

Which of the following organelles is responsible for photosynthesis in plant cells?

Accepted Answer

Chloroplast

Question 16

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 17

Which of the following is a function of the endoplasmic reticulum?

Accepted Answer

Protein and lipid synthesis

Question 18

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

Accepted Answer

They lack a plasma membrane and cytoplasm.

Question 19

Which of the following is a correct sequence of increasing complexity in biological organization, starting from the simplest?

Accepted Answer

Cell → Tissue → Organ

Question 20

Which of the following best describes the role of the Golgi apparatus in a cell?

Accepted Answer

Modifying, sorting, and packaging proteins and lipids

Introduction to Cells: Structure, Types, and Organelles

Study Guide - Practice Questions