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 illustrated in the study material?

Accepted Answer

Virus

Question 3

Which of the following structures is present in both prokaryotic and eukaryotic cells?

Accepted Answer

Plasma membrane

Question 4

A scientist observes a cell with a defined nucleus and several membrane-bound organelles. According to the material, this cell is most likely:

Accepted Answer

An eukaryotic cell

Question 5

Which organelle is responsible for energy production in both plant and animal 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 lacks a nucleus and membrane-bound organelles, it is classified as:

Accepted Answer

Prokaryotic

Question 8

Which of the following best describes the function of ribosomes?

Accepted Answer

Protein synthesis

Question 9

A cell is observed to have chloroplasts, a large central vacuole, and a cell wall. This cell is most likely from:

Accepted Answer

A plant

Question 10

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

Accepted Answer

Golgi complex – modification and packaging of proteins

Question 11

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 12

Which of the following statements about viruses is supported by the study material?

Accepted Answer

Viruses are acellular and do not fit the cell theory.

Question 13

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

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 the synthesis of lipids and detoxification of drugs?

Accepted Answer

Smooth endoplasmic reticulum

Question 16

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

Accepted Answer

They lack cellular structure and cannot carry out metabolism independently.

Question 17

Which of the following is a function of the central vacuole in plant cells?

Accepted Answer

Storage of water and maintenance of turgor pressure

Question 18

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

Accepted Answer

Eukaryotic cells have a nucleus, while prokaryotic cells do not.

Question 19

Which of the following is a correct sequence of the flow of genetic information in a cell?

Accepted Answer

$$DNA \rightarrow RNA \rightarrow Protein$$

Question 20

A cell is observed to have a large number of mitochondria. This cell is most likely specialized for which of the following functions?

Accepted Answer

Active transport and high energy demand

Overview of Cell Structure and Cell Theory

Study Guide - Practice Questions