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 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 study material, this cell is most likely:

Accepted Answer

A 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 best describes the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

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

Question 7

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

Accepted Answer

Chloroplast

Question 8

A cell is observed to have a cell wall, large central vacuole, and chloroplasts. Which type of cell is this most likely to be?

Accepted Answer

Plant cell

Question 9

Which of the following is NOT considered an organelle?

Accepted Answer

Cytoplasm

Question 10

If a cell lacks mitochondria, which process would be most directly affected?

Accepted Answer

ATP production through cellular respiration

Question 11

Which of the following best explains why viruses are considered exceptions to the cell theory?

Accepted Answer

They lack cellular structure and are acellular.

Question 12

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

Accepted Answer

Golgi apparatus – Protein modification and sorting

Question 13

A mutation prevents a cell from forming a plasma membrane. Which of the following would most likely occur?

Accepted Answer

The cell would lose its ability to regulate the movement of substances in and out.

Question 14

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

Accepted Answer

$$\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6\ \mathrm{O}_2 ightarrow 6\ \mathrm{CO}_2 + 6\ \mathrm{H}_2\mathrm{O} + 	ext{ATP}$$

Question 15

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

Accepted Answer

Protein and lipid synthesis

Question 16

A cell is observed to lack a nucleus and membrane-bound organelles. Which type of cell is this most likely to be?

Accepted Answer

Prokaryotic cell

Question 17

Which of the following best describes the role of ribosomes in the cell?

Accepted Answer

They synthesize proteins.

Question 18

Which of the following is a key difference between plant and animal cells?

Accepted Answer

Plant cells contain chloroplasts, animal cells do not.

Question 19

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

Protein modification and packaging

Question 20

Which of the following statements about cellular organelles is correct?

Accepted Answer

Only eukaryotic cells contain membrane-bound organelles.

Overview of Cell Structure and Cell Theory

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