Question 1

Which of the following statements correctly describes a major difference between fungi and protozoa?

Accepted Answer

Fungi have cell walls composed of chitin, while protozoa lack cell walls.

Question 2

Yeasts are unique among fungi because they:

Accepted Answer

Are unicellular and reproduce asexually by budding or fission.

Question 3

Which of the following best explains why fungi are important in the food chain?

Accepted Answer

They decompose dead plants and animals, recycling nutrients.

Question 4

A fungal thallus is primarily composed of which structure?

Accepted Answer

Mycelium, which is a mass of hyphae.

Question 5

Which adaptation allows fungi to thrive in environments with high osmotic pressure?

Accepted Answer

Ability to grow in high sugar and salt concentrations.

Question 6

Which of the following is TRUE regarding the sexual reproduction of fungi?

Accepted Answer

It involves plasmogamy, karyogamy, and meiosis.

Question 7

A patient presents with a fungal infection affecting their hair and nails. Which type of mycosis is this?

Accepted Answer

Cutaneous mycosis

Question 8

Which of the following best describes the cell wall composition of algae?

Accepted Answer

Cellulose

Question 9

Which phylum of algae is harvested for agar and carrageenan?

Accepted Answer

Rhodophyta (red algae)

Question 10

Which of the following is a harmful effect of algal blooms?

Accepted Answer

Release of toxins and depletion of oxygen in water

Question 11

Protozoa are classified based on their:

Accepted Answer

Mode of motility

Question 12

Which protozoan disease is transmitted by Anopheles mosquitoes and involves schizogony in the liver?

Accepted Answer

Malaria

Question 13

Which of the following is a characteristic feature of helminths that distinguishes them from protozoa?

Accepted Answer

They are multicellular and may lack digestive systems.

Question 14

Which structure in tapeworms contains both male and female reproductive organs?

Accepted Answer

Proglottid

Question 15

Which of the following equations best represents the process of photosynthesis in algae?

Accepted Answer

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

Question 16

Which of the following is a correct description of a mechanical vector?

Accepted Answer

A vector that merely transports the pathogen without being infected.

Question 17

Which of the following is TRUE about dimorphic fungi?

Accepted Answer

They can exist as yeastlike at 37$$^\circC $$and moldlike at 25$$^\circC.$$

Question 18

Which of the following is a medically important protozoan that moves by flagella and causes sleeping sickness?

Accepted Answer

Trypanosoma sp.

Question 19

Which of the following best describes the role of symbiotic fungi in plant roots?

Accepted Answer

They aid in the absorption of minerals and water.

Question 20

Which of the following is NOT a characteristic of protozoa?

Accepted Answer

They have cell walls composed of cellulose.

Eukaryotic Microorganisms: Fungi, Algae, and Protozoa

Study Guide - Practice Questions