Q: Which equation best represents the process of cellular respiration occurring in mitochondria?

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

Question 1

Which of the following structures is found in both prokaryotic and eukaryotic cells and is directly responsible for synthesizing proteins?

Accepted Answer

Ribosomes

Question 2

A scientist is studying a cell that lacks a nucleus and other membrane-bound organelles. The cell also has a peptidoglycan cell wall. Which domain does this cell most likely belong to?

Accepted Answer

Bacteria

Question 3

Which organelle is responsible for modifying, sorting, and packaging proteins received from the endoplasmic reticulum?

Accepted Answer

Golgi apparatus

Question 4

A mutation disrupts the nuclear lamina in a eukaryotic cell. Which cellular function would be most directly affected?

Accepted Answer

Maintenance of nuclear shape

Question 5

Which of the following is NOT a component of the endomembrane system?

Accepted Answer

Nucleus

Question 6

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

Accepted Answer

Plant cell

Question 7

Which organelle contains its own DNA and ribosomes and is responsible for ATP production through cellular respiration?

Accepted Answer

Mitochondrion

Question 8

If a cell's plasma membrane is damaged, which of the following processes would be most directly impaired?

Accepted Answer

Regulation of chemical composition

Question 9

Which cytoskeletal element is primarily responsible for bearing tension and maintaining cell shape, and is made up of several strands of fibrous proteins?

Accepted Answer

Intermediate filaments

Question 10

A researcher isolates a cell with the following features: a nucleoid region, flagella, and a cell wall containing peptidoglycan. Which of the following is most likely true about this cell?

Accepted Answer

It is a prokaryotic cell

Question 11

Which of the following best describes the function of the nucleolus?

Accepted Answer

Site of ribosomal RNA synthesis and ribosome subunit assembly

Question 12

A cell is exposed to a toxin that inhibits the function of peroxisomes. Which process would be most directly affected?

Accepted Answer

Breakdown of fatty acids via oxidation reactions

Question 13

Which of the following is a function of the smooth endoplasmic reticulum (ER)?

Accepted Answer

Synthesis of carbohydrates and lipids

Question 14

Which of the following cell junctions prevents leakage of material between animal cells?

Accepted Answer

Tight junctions

Question 15

A plant cell stores poisonous compounds to deter herbivores. Which organelle is most likely responsible for this function?

Accepted Answer

Central vacuole

Question 16

Which of the following is true about the plasma membrane?

Accepted Answer

It is a phospholipid bilayer with embedded proteins

Question 17

Which organelle is the 'garbage disposal' of animal cells, containing hydrolytic enzymes for digestion?

Accepted Answer

Lysosome

Question 18

A cell is observed to have a high number of mitochondria. What can you infer about this cell's function?

Accepted Answer

It has a high energy demand

Question 19

Which of the following best explains why eukaryotic cells can compartmentalize different metabolic reactions?

Accepted Answer

They contain membrane-bound organelles

Question 20

Which equation best represents the process of cellular respiration occurring in mitochondria?

Accepted Answer

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

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