Question 1

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

Accepted Answer

Plasma membrane

Question 2

A scientist discovers a new organism with cells that lack a nucleus but contain ribosomes and a plasma membrane. To which domain does this organism most likely belong?

Accepted Answer

Bacteria

Question 3

Which of the following best explains why cells are considered the structural and functional units of life?

Accepted Answer

Cells are the smallest living things that can perform all physiological, biochemical, genetic, and metabolic functions.

Question 4

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells contain their genetic material within a nucleus, while prokaryotic cells do not.

Question 5

A plant cell is placed in a solution and begins to swell. Which organelle is primarily responsible for storing the excess water?

Accepted Answer

Central vacuole

Question 6

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

Accepted Answer

Chloroplast

Question 7

If a mutation prevents the formation of ribosomes in a cell, which process would be most directly affected?

Accepted Answer

Protein synthesis

Question 8

Which of the following best describes the function of the plasma membrane?

Accepted Answer

It acts as a boundary, controlling the movement of substances in and out of the cell.

Question 9

A bacterial cell is observed under a microscope. Which of the following features would you expect to find?

Accepted Answer

A nucleoid region containing DNA

Question 10

Which of the following is a function of the cytosol in a cell?

Accepted Answer

It is the fluid in which all internal structures are suspended.

Question 11

Which of the following correctly matches the cell type with its typical complexity and size?

Accepted Answer

Eukaryotic cells are larger and more complex than prokaryotic cells.

Question 12

A student is comparing animal and plant cells. Which structure is found in both cell types?

Accepted Answer

Nucleus

Question 13

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

Accepted Answer

It is a single, circular chromosome located in the nucleoid region.

Question 14

Which of the following is a common misconception about the differences between prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotic cells do not have ribosomes.

Question 15

A mutation in a plant cell prevents the formation of a cell wall. Which of the following would most likely occur as a result?

Accepted Answer

The cell would lose structural support and be more susceptible to bursting in hypotonic environments.

Question 16

Which of the following is a function of the mitochondria in eukaryotic cells?

Accepted Answer

ATP production through cellular respiration

Question 17

Which of the following best describes the role of chromosomes in a cell?

Accepted Answer

They carry genetic information.

Question 18

A researcher is studying a cell that contains a large permanent vacuole, chloroplasts, and a cell wall. Which type of cell is this most likely to be?

Accepted Answer

Plant cell

Question 19

Which of the following is true about ribosomes?

Accepted Answer

They are responsible for building proteins in both prokaryotic and eukaryotic cells.

Question 20

A cell is observed to have a plasma membrane, cytoplasm, ribosomes, and a single circular chromosome, but no membrane-bound organelles. Which of the following equations best represents the minimum number of structures present in this cell?

Accepted Answer

$n = 4$

Cell Structure and Function: Prokaryotic, Eukaryotic, Animal, and Plant Cells

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