$$\text{Cytoplasmic membrane} = \text{Phospholipids} + \text{Proteins} + \text{Steroid lipids}$$

Question 1

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

Accepted Answer

Eukaryotic cells have paired linear chromosomes in a nucleus, while prokaryotic cells have one or two circular chromosomes in a nucleoid.

Question 2

Which of the following eukaryotic structures is responsible for anchoring organelles and maintaining cell shape?

Accepted Answer

Cytoskeleton

Question 3

A scientist observes a eukaryotic cell with a thick, rigid outer layer composed of chitin. This cell most likely belongs to which group?

Accepted Answer

Fungi

Question 4

Which process involves the engulfment of solid particles by a eukaryotic cell using pseudopods?

Accepted Answer

Phagocytosis

Question 5

What is the primary function of the Golgi body in eukaryotic cells?

Accepted Answer

Receiving, processing, and packaging large molecules for export

Question 6

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

Accepted Answer

They contain their own DNA and 70S ribosomes, similar to prokaryotes.

Question 7

A mutation disrupts the function of the 60S ribosomal subunit in a eukaryotic cell. Which process will be directly affected?

Accepted Answer

Protein synthesis

Question 8

Which of the following is NOT a function of the eukaryotic glycocalyx?

Accepted Answer

Providing a rigid structure to prevent osmotic lysis

Question 9

Which organelle is responsible for degrading hydrogen peroxide and other toxic substances in eukaryotic cells?

Accepted Answer

Peroxisome

Question 10

A cell is observed to have numerous short, motile projections on its surface that beat rhythmically. These structures are most likely:

Accepted Answer

Cilia

Question 11

Which of the following equations best represents the fluid mosaic model of the eukaryotic cytoplasmic membrane?

Accepted Answer

$$	ext{Cytoplasmic membrane} = 	ext{Phospholipids} + 	ext{Proteins} + 	ext{Steroid lipids}$$

Question 12

Which of the following statements about eukaryotic cell division is correct?

Accepted Answer

Eukaryotic cells divide by mitosis.

Question 13

A researcher is studying a eukaryotic cell that lacks centrioles. Which process is most likely to be impaired?

Accepted Answer

Formation of flagella and cilia

Question 14

Which of the following best describes the composition of a typical fungal cell wall?

Accepted Answer

Cellulose, chitin, and/or glucomannan

Question 15

Which of the following is a correct comparison of ribosomes in prokaryotes and eukaryotes?

Accepted Answer

Eukaryotic ribosomes are 80S, prokaryotic ribosomes are 70S.

Question 16

Which of the following best explains why animal cells are more susceptible to osmotic lysis than plant cells?

Accepted Answer

Animal cells lack a cell wall, while plant cells have a rigid polysaccharide cell wall.

Question 17

Which of the following is a function of the eukaryotic cytoplasmic membrane?

Accepted Answer

Controlling movement of molecules in and out of the cell

Question 18

A cell is observed to have a large central vacuole, a cell wall, and chloroplasts. This cell is most likely from:

Accepted Answer

A plant

Question 19

Which of the following best describes the role of lysosomes in eukaryotic cells?

Accepted Answer

Containing catabolic enzymes for intracellular digestion

Question 20

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

Accepted Answer

Eukaryotic flagella are composed of tubulin microtubules arranged in a '9+2' pattern.

Eukaryotic Cell Structure and Function: A Microbiology Study Guide

Study Guide - Practice Questions