Question 1

Which of the following is a distinguishing feature of eukaryotic cells compared to prokaryotic cells?

Accepted Answer

Presence of membrane-bound organelles such as mitochondria and Golgi apparatus

Question 2

Which organelle is responsible for synthesizing proteins in eukaryotic cells, and what type of ribosome does it contain?

Accepted Answer

Rough endoplasmic reticulum; 80S ribosomes

Question 3

Which protozoan parasite is responsible for causing malaria, and how is it primarily transmitted?

Accepted Answer

Plasmodium spp.; bite of an infected female Anopheles mosquito

Question 4

Which of the following statements about the nucleolus is correct?

Accepted Answer

It is the site of rRNA synthesis and pre-ribosomal assembly

Question 5

Which structure provides structural support and serves as a network for transport of intracellular materials in eukaryotic cells?

Accepted Answer

Cytoskeleton

Question 6

Which of the following is a common method of transmission for protozoal infections?

Accepted Answer

Person to person contact

Question 7

Which phase of the Plasmodium life cycle is targeted by most antimalarial drugs?

Accepted Answer

Asexual erythrocytic phase in humans

Question 8

Which of the following is a distinguishing characteristic of nematode parasites?

Accepted Answer

They are roundworms commonly transmitted through undercooked foods

Question 9

Which fungal structure is targeted by antifungal medications due to its unique composition?

Accepted Answer

Cell membrane containing ergosterols

Question 10

Which of the following fungi is a common cause of vaginal yeast infections and is part of the normal microbiota?

Accepted Answer

Candida albicans

Question 11

A patient presents with cycles of fever, chills, and severe anemia after traveling to sub-Saharan Africa. Which protozoan infection is most likely?

Accepted Answer

Malaria

Question 12

Which of the following is true regarding the function of lysosomes in eukaryotic cells?

Accepted Answer

They contain digestive enzymes that break down particles ingested by endocytosis and phagocytosis

Question 13

Which of the following is a correct statement about the structure of eukaryotic flagella?

Accepted Answer

They are composed of a 9+2 array of microtubules

Question 14

Which of the following is a major ecological role of fungi?

Accepted Answer

Decomposition of organic matter

Question 15

Which of the following protozoan parasites is transmitted primarily through contaminated water and causes persistent diarrhea?

Accepted Answer

Giardia lamblia

Question 16

Which of the following is a common symptom of classic malaria paroxysm?

Accepted Answer

Chills, fever up to 40°C, and diaphoresis

Question 17

Which of the following is a method of control for protozoan parasites?

Accepted Answer

Water filtration and proper sanitation

Question 18

Which of the following statements about Candida albicans is correct?

Accepted Answer

It can result in overgrowth and become systemic, especially in immunocompromised patients

Question 19

Which of the following is a correct description of the function of the Golgi apparatus?

Accepted Answer

It processes proteins and lipids, adding sugar molecules to produce glycoproteins and glycolipids

Question 20

Which of the following is a distinguishing characteristic of cestode parasites?

Accepted Answer

They are flatworms often transmitted through undercooked meat

Eukaryotes of Microbiology: Structure, Function, and Pathogenic Protozoa

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