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

$$6CO_2 + 6H_2O + \text{light energy} \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 1

Which of the following statements best describes a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have their genetic material enclosed within a nucleus, whereas prokaryotic cells do not.

Question 2

Which process is responsible for the uptake of large particles by a eukaryotic cell?

Accepted Answer

Phagocytosis

Question 3

What is the main function of the mitochondrion in eukaryotic cells?

Accepted Answer

Aerobic respiration and ATP production

Question 4

Which of the following equations correctly represents aerobic respiration in mitochondria?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Question 5

Which organelle is primarily responsible for sorting and packaging proteins for export from the cell?

Accepted Answer

Golgi apparatus

Question 6

A mutation disrupts the function of dynein in a eukaryotic cell. Which cellular process would be most directly affected?

Accepted Answer

Vesicle transport along microtubules

Question 7

Which of the following best explains why transcription and translation are spatially separated in eukaryotic cells?

Accepted Answer

The nuclear envelope separates DNA replication and transcription from translation.

Question 8

Which structure is found in plant cells but not in animal cells?

Accepted Answer

Chloroplast

Question 9

A vesicle containing digestive enzymes fuses with a phagosome. What is the resulting structure called?

Accepted Answer

Phagolysosome

Question 10

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

Accepted Answer

Synthesizing ATP

Question 11

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

Accepted Answer

It cages vesicles for transport and sorting.

Question 12

Which of the following is a correct description of the function of the nuclear pore complex?

Accepted Answer

It regulates the transport of macromolecules between the nucleus and cytoplasm.

Question 13

Which of the following is a unique feature of eukaryotic flagella compared to prokaryotic flagella?

Accepted Answer

They have a 9+2 arrangement of microtubules.

Question 14

Which process is responsible for the export of proteins from the cell via fusion of vesicles with the plasma membrane?

Accepted Answer

Exocytosis

Question 15

Which of the following best describes the function of the Golgi apparatus in protein processing?

Accepted Answer

It modifies, sorts, and targets proteins to their correct destinations.

Question 16

Which of the following is a correct equation for photosynthetic energy fixation in chloroplasts?

Accepted Answer

$$6CO_2 + 6H_2O + 	ext{light energy} ightarrow C_6H_{12}O_6$ + 6O_2$$

Question 17

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

Accepted Answer

Thylakoids

Question 18

Which of the following best explains why the inside and outside faces of the eukaryotic cell membrane never invert or mix?

Accepted Answer

Vesicle trafficking maintains the orientation of membrane faces during fusion and fission.

Question 19

Which of the following is a function of the extracellular matrix in animal cells?

Accepted Answer

It provides structural support and mediates cell signaling.

Question 20

Which of the following best describes the role of the endoplasmic reticulum (ER) in protein synthesis?

Accepted Answer

It provides a surface for ribosomes to translate mRNA into proteins and modifies these proteins.

Introduction to the Cell: Structure, Compartments, and Organelles

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