Question 1

Which of the following is a distinguishing feature of organisms in the Kingdom Animalia compared to those in Kingdom Mycetae?

Accepted Answer

Animalia organisms are multicellular and lack cell walls.

Question 2

Which domain includes organisms with peptidoglycan in their cell walls?

Accepted Answer

Domain Bacteria

Question 3

A microbiologist isolates a unicellular, motile organism lacking a cell wall but possessing a pellicle. It is capable of both chemoheterotrophy and photoheterotrophy. To which group does this organism most likely belong?

Accepted Answer

Protozoa

Question 4

Which of the following statements about fungi (Kingdom Mycetae) is correct?

Accepted Answer

Fungi are chemoheterotrophs with cell walls made of cellulose and chitin.

Question 5

Which of the following best describes the energy and carbon source for most bacteria?

Accepted Answer

Chemoheterotroph, photoautotroph, and chemoautotroph

Question 6

A scientist discovers a unicellular organism living in a hot spring with a cell wall made of unusual materials, not peptidoglycan. It is motile and obtains energy from inorganic chemicals. Which domain does this organism most likely belong to?

Accepted Answer

Domain Archaea

Question 7

Which of the following is NOT a characteristic of viruses?

Accepted Answer

They are classified as living organisms.

Question 8

Which representative organism is correctly matched with its biological division?

Accepted Answer

Amoeba – Protozoa

Question 9

Which of the following statements about prions is true?

Accepted Answer

Prions are infectious agents composed only of protein.

Question 10

Which of the following equations correctly represents the general formula for calculating the number of possible protozoan kingdoms if the number increases by $$n$$ each year, starting from 12?

Accepted Answer

$$K = 12 + n$$

Question 11

A patient is diagnosed with an intestinal roundworm infection. Which biological division does the causative organism belong to?

Accepted Answer

Kingdom Animalia

Question 12

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles.

Question 13

Which of the following groups contains organisms that can be chemoautotrophs?

Accepted Answer

Domain Archaea

Question 14

Which of the following is true about the motility of organisms in Kingdom Mycetae?

Accepted Answer

Most are non-motile.

Question 15

Which of the following is a correct statement about the cell wall composition of yeast?

Accepted Answer

Yeast cell walls are made of cellulose and chitin.

Question 16

Which of the following is NOT a representative organism of Domain Bacteria?

Accepted Answer

Saccharomyces

Question 17

A researcher is studying a group of organisms that are unicellular, have cell walls made of peptidoglycan, and are motile. Which domain do these organisms belong to?

Accepted Answer

Domain Bacteria

Question 18

Which of the following best describes the nutritional mode of helminths?

Accepted Answer

Chemoheterotroph

Question 19

Which of the following is a correct statement about cellular infectious agents?

Accepted Answer

Prions are composed only of protein.

Question 20

Which of the following equations represents the relationship between the number of protozoan kingdoms ($$K) $$and the number of new kingdoms discovered per year ($$n$$), if the number started at 12?

Accepted Answer

$$K = 12 + n$$

Biological Divisions and Microbial Groups: Structure, Classification, and Key Features

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