Question 1

Which of the following statements best describes the function of the plasma membrane in eukaryotic cells?

Accepted Answer

It regulates the movement of substances into and out of the cell, maintaining homeostasis.

Question 2

A scientist observes a cell with a large central vacuole, a cell wall, and chloroplasts. Which type of cell is being observed?

Accepted Answer

Plant cell

Question 3

Which organelle is primarily responsible for the production of ATP through cellular respiration?

Accepted Answer

Mitochondrion

Question 4

During osmosis, water moves across a semipermeable membrane from an area of:

Accepted Answer

Low solute concentration to high solute concentration

Question 5

Which equation correctly represents the process of photosynthesis?

Accepted Answer

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

Question 6

A mutation causes a cell to lack functional ribosomes. Which cellular process would be most directly affected?

Accepted Answer

Protein synthesis

Question 7

Which of the following best explains why mitochondria are often called the 'powerhouse' of the cell?

Accepted Answer

They generate ATP through oxidative phosphorylation.

Question 8

A red blood cell placed in a hypotonic solution will:

Accepted Answer

Burst due to water influx

Question 9

Which structure is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 10

Which of the following is a correct description of the fluid mosaic model of the plasma membrane?

Accepted Answer

A dynamic structure with proteins embedded in or attached to a bilayer of phospholipids.

Question 11

Which process is described by the equation $$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + energy$$?

Accepted Answer

Cellular respiration

Question 12

A cell is observed to have a large number of lysosomes. What is the most likely function of this cell?

Accepted Answer

Intracellular digestion and recycling of cellular components

Question 13

Which of the following best describes the role of the endoplasmic reticulum (ER) in eukaryotic cells?

Accepted Answer

It is involved in the synthesis and transport of proteins and lipids.

Question 14

A patient is diagnosed with a genetic disorder that affects the function of peroxisomes. Which cellular process is most likely impaired?

Accepted Answer

Breakdown of hydrogen peroxide and fatty acid metabolism

Question 15

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

Accepted Answer

Synthesizing proteins

Question 16

A cell is placed in a solution with a higher concentration of solutes than the cytoplasm. What will happen to the cell?

Accepted Answer

It will shrink as water leaves the cell.

Question 17

Which organelle contains its own DNA and is believed to have originated from an ancestral symbiotic relationship?

Accepted Answer

Mitochondrion

Question 18

Which of the following best explains the difference between passive and active transport across the plasma membrane?

Accepted Answer

Active transport moves substances against their concentration gradient using energy, while passive transport moves substances down their concentration gradient without energy.

Question 19

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

Accepted Answer

Secretion of large amounts of proteins

Question 20

Which of the following is a correct sequence of events in the endomembrane system for a secreted protein?

Accepted Answer

Ribosome → Rough ER → Golgi apparatus → Plasma membrane

Cell Biology: Cell Division and Meiosis Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard