Question 1

Which of the following structures is found in both prokaryotic and eukaryotic cells?

Accepted Answer

Ribosomes

Question 2

A scientist observes a cell with a cell wall made of chitin, no chlorophyll, and both unicellular and multicellular forms. To which group does this organism most likely belong?

Accepted Answer

Fungi

Question 3

Which of the following best describes the genetic material in prokaryotic cells?

Accepted Answer

Located in the nucleoid region

Question 4

A student observes a chain of green cells with specialized heterocysts under the microscope. Which organism is most likely being observed?

Accepted Answer

Anabaena

Question 5

Which of the following is a correct statement about cyanobacteria?

Accepted Answer

They are prokaryotic and perform photosynthesis using thylakoids.

Question 6

Which of the following best explains why antibiotics that target peptidoglycan synthesis are effective against bacteria but not human cells?

Accepted Answer

Bacterial cells have a cell wall containing peptidoglycan, which human cells lack.

Question 7

Which of the following cell types would you expect to find 80S ribosomes?

Accepted Answer

Plant cells

Question 8

A wet mount of yogurt reveals rod-shaped bacteria. Which genus is most likely present?

Accepted Answer

Lactobacillus

Question 9

Which of the following is a distinguishing feature of plant cells compared to animal cells?

Accepted Answer

Presence of a central vacuole

Question 10

Which of the following equations correctly represents the process of photosynthesis that occurs in plant cells and cyanobacteria?

Accepted Answer

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

Question 11

Which of the following best describes the function of heterocysts in Anabaena?

Accepted Answer

Nitrogen fixation

Question 12

A cell is observed to have a nucleus, mitochondria, and a cell wall made of cellulose. Which type of organism is this cell most likely from?

Accepted Answer

Plant

Question 13

Which of the following statements about protists is correct?

Accepted Answer

Protists can be plant-like, fungus-like, or animal-like.

Question 14

Which of the following is a real-world application of fungi?

Accepted Answer

Production of antibiotics such as penicillin

Question 15

Which of the following best explains why animal cells burst in pure water while plant cells do not?

Accepted Answer

Plant cells have a cell wall that provides structural support.

Question 16

Which of the following is a correct pairing of cell type and its characteristic?

Accepted Answer

Plant cell – central vacuole present

Question 17

Which of the following best describes the arrangement and shape of Lactobacillus bacteria as seen in a yogurt wet mount?

Accepted Answer

Rod-shaped chains

Question 18

Which of the following is a function of the plasma membrane in both prokaryotic and eukaryotic cells?

Accepted Answer

Regulation of material transport into and out of the cell

Question 19

Which of the following is a unique feature of fungal cell walls compared to plant cell walls?

Accepted Answer

Presence of chitin

Question 20

A researcher is studying a unicellular organism with 80S ribosomes, a nucleus, and no cell wall. Which group does this organism most likely belong to?

Accepted Answer

Animal-like protists

Understanding Cell Structure and Function: Prokaryotes, Eukaryotes, and Their Diversity

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