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

Question 1

Which of the following structures is present in all cells and is responsible for containing the genetic material?

Accepted Answer

Cytosol

Question 2

Which statement best describes the difference in organelles between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotes have membrane-bound organelles; prokaryotes do not.

Question 3

A scientist discovers a cell with a double membrane, its own DNA, and ribosomes. Which organelle is most likely being observed?

Accepted Answer

Mitochondrion

Question 4

Which of the following best describes the function of ribosomes?

Accepted Answer

Protein synthesis

Question 5

A mutation prevents the formation of microtubules in a cell. Which cellular process would be most directly affected?

Accepted Answer

Cell division (mitosis)

Question 6

Which equation correctly represents the process of ATP production in mitochondria?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{ATP}$$

Question 7

Which organelle is primarily responsible for modifying, sorting, and packaging proteins for secretion?

Accepted Answer

Golgi apparatus

Question 8

A cell is observed to have abundant rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Secretion of proteins

Question 9

Which of the following is NOT a component of the cytoskeleton?

Accepted Answer

Ribosomes

Question 10

A cell is unable to produce ribosomes. Which process will be directly impaired?

Accepted Answer

Protein synthesis

Question 11

Which structure is continuous with the nuclear envelope and is involved in lipid synthesis?

Accepted Answer

Smooth endoplasmic reticulum

Question 12

Which of the following best explains why chloroplasts and mitochondria are considered semi-autonomous organelles?

Accepted Answer

They contain their own DNA and ribosomes.

Question 13

A cell is observed to have a large number of lysosomes. Which function is this cell most likely specialized for?

Accepted Answer

Intracellular digestion

Question 14

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

Accepted Answer

Chloroplast: Photosynthesis

Question 15

Which of the following is a major difference between the smooth and rough endoplasmic reticulum?

Accepted Answer

Rough ER has ribosomes; smooth ER does not.

Question 16

Which of the following best describes the path of a protein destined for secretion from a eukaryotic cell?

Accepted Answer

Rough ER → Golgi apparatus → plasma membrane

Question 17

Which of the following structures is NOT found in prokaryotic cells?

Accepted Answer

Nucleus

Question 18

A cell is observed to have thylakoids and stroma. Which organelle is being described?

Accepted Answer

Chloroplast

Question 19

Which of the following is the correct order of the three types of cytoskeletal structures from largest to smallest diameter?

Accepted Answer

Microtubules \u003e intermediate filaments \u003e microfilaments

Question 20

Which of the following best explains the role of the cytoskeleton in a cell?

Accepted Answer

It provides structural support and facilitates movement.

Tour of the Cell: Structure and Function of Cellular Components

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