Question 1

Which of the following best describes the difference between innate and adaptive immunity?

Accepted Answer

Innate immunity provides immediate, non-specific defense, while adaptive immunity develops more slowly and is highly specific to particular antigens.

Question 2

A patient is bitten by a venomous snake and is immediately given antivenom. Which type of immunity is this an example of?

Accepted Answer

Artificially acquired passive immunity

Question 3

Which of the following white blood cells is primarily responsible for targeting parasitic worms and is classified as a granulocyte?

Accepted Answer

Eosinophil

Question 4

During the process of phagocytosis, which stage involves the movement of phagocytes toward the site of infection in response to chemical signals?

Accepted Answer

Chemotaxis

Question 5

A laboratory test detects the presence of antibodies in a patient's serum by causing visible clumping when mixed with a specific antigen. What is this test called?

Accepted Answer

Agglutination

Question 6

Which of the following best describes the function of perforin released by cytotoxic T cells?

Accepted Answer

It forms pores in the target cell membrane, leading to cell lysis.

Question 7

Which of the following is a correct statement about MHC molecules?

Accepted Answer

MHC I molecules are found on all nucleated cells, while MHC II molecules are found only on antigen-presenting cells.

Question 8

A patient develops an infection after a surgical procedure in a hospital. This infection is best described as:

Accepted Answer

Nosocomial infection

Question 9

Which of the following best describes the difference between sterilization and disinfection?

Accepted Answer

Sterilization removes all forms of microbial life, including endospores, while disinfection reduces the number of pathogens but may not eliminate endospores.

Question 10

Which of the following is an example of a physical barrier in the first line of innate defense?

Accepted Answer

Skin

Question 11

Which of the following best describes the process of crossing over during meiosis?

Accepted Answer

It occurs during prophase I and results in the exchange of genetic material between homologous chromosomes.

Question 12

Which of the following is NOT a function of the normal microbiota?

Accepted Answer

Directly causing disease in healthy individuals

Question 13

Which of the following best describes the difference between a sign and a symptom of disease?

Accepted Answer

A sign is an objective measurement observed by others, while a symptom is a subjective experience reported by the patient.

Question 14

Which of the following best describes the arrangement of diplococci?

Accepted Answer

Pairs of cocci

Question 15

A virus with a helical capsid and an envelope would be classified as which shape?

Accepted Answer

Enveloped helical

Question 16

Which of the following best describes the process of schizogony?

Accepted Answer

A type of asexual reproduction in protozoa involving multiple rounds of nuclear division before cytokinesis.

Question 17

Which of the following is a correct statement about the genome of viruses?

Accepted Answer

Viral genomes can be composed of either DNA or RNA, which may be single-stranded or double-stranded.

Question 18

Which of the following best describes the function of the red pulp in the spleen?

Accepted Answer

It filters blood and removes old or damaged red blood cells.

Question 19

Which of the following is a characteristic of high G+C Gram-positive bacteria?

Accepted Answer

They are classified in the phylum Actinobacteria.

Question 20

A patient receives a live attenuated vaccine. Which of the following best describes this type of vaccine?

Accepted Answer

It contains live microorganisms that have been weakened so they cannot cause disease.

Comprehensive Microbiology Final Exam Review Guidance

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