Q: Which equation best represents the process by which cells arise according to cell theory?

$\text{Cell}_{n+1} = \text{Division}(\text{Cell}_n)$

Question 1

Which statement best describes the cell theory as presented in the study materials?

Accepted Answer

Cells are the structural and functional unit of all organisms, and all cells arise by division of pre-existing cells.

Question 2

Which of the following features is unique to prokaryotic cells compared to eukaryotic cells?

Accepted Answer

Circular DNA located in a nucleoid region

Question 3

A scientist discovers a cell with a capsule, plasmids, and a nucleoid. Which type of cell is this most likely to be?

Accepted Answer

Prokaryotic cell

Question 4

Which of the following is a function of the plasma membrane in both prokaryotic and eukaryotic cells?

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 5

Which of the following best explains why eukaryotic cells can perform more complex functions than prokaryotic cells?

Accepted Answer

Eukaryotic cells have internal membranes that compartmentalize their functions.

Question 6

Which of the following structures is found in all cells, both prokaryotic and eukaryotic?

Accepted Answer

Ribosomes

Question 7

A bacterium is exposed to streptomycin, which inhibits protein synthesis. Which cellular structure is most directly affected?

Accepted Answer

Ribosomes

Question 8

Which of the following is a correct comparison between Archaea and Bacteria?

Accepted Answer

Archaea have lipids with branched hydrocarbons in their membranes, while Bacteria do not.

Question 9

Which of the following best describes the genetic material in prokaryotic cells?

Accepted Answer

Circular DNA located in the nucleoid and plasmids

Question 10

A cell is observed to have a large central vacuole, a cell wall, and chloroplasts. What type of cell is this?

Accepted Answer

Plant cell

Question 11

Which equation best represents the process by which cells arise according to cell theory?

Accepted Answer

$	ext{Cell}_{n+1} = 	ext{Division}(	ext{Cell}_n)$

Question 12

Which of the following is a real-world example of cell differentiation in multicellular organisms?

Accepted Answer

A neuron expressing genes that allow it to transmit electrical signals, while a muscle cell expresses genes for contraction

Question 13

Which of the following is NOT a function of the capsule in prokaryotic cells?

Accepted Answer

Synthesizing proteins

Question 14

Which structure is responsible for the whip-like motion that allows some prokaryotes to move?

Accepted Answer

Flagellum

Question 15

Which of the following best explains why antibiotics like streptomycin are effective against bacteria but not human cells?

Accepted Answer

Bacterial ribosomes are structurally different from eukaryotic ribosomes, allowing selective inhibition.

Question 16

Which of the following is a correct statement about plasmids in prokaryotic cells?

Accepted Answer

Plasmids are small, circular DNA molecules that often carry genes for antibiotic resistance.

Question 17

Which of the following cell types is most likely to have a cell wall made of peptidoglycan?

Accepted Answer

Bacterial cell

Question 18

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

Accepted Answer

Ribosomes are involved in protein synthesis by translating mRNA.

Question 19

A cell is observed to have internal membranes, a nucleus, and mitochondria. Which type of cell is this?

Accepted Answer

Eukaryotic cell

Question 20

Which of the following equations best represents the relationship between surface area and volume in a cell, affecting its ability to exchange materials?

Accepted Answer

$	ext{Surface~Area} / 	ext{Volume} \propto 1/r$

Cell Theory and Cell Types: Prokaryotic vs. Eukaryotic Cells

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