MCQs Mock Test for Lab Technicians and Technologists: Chapter 39

A 12-year-old boy presents to his pediatrician with fever, malaise, and a sore throat. Physical examination reveals a fever of 103°F, cervical lymphadenopathy, and pharyngeal erythema. A swab is taken from some of the tonsillar exudate and cultured on blood agar. Culture reveals beta hemolytic, gram-positive cocci, and a rapid antigen test is positive. What is the major component that protects the causal agent from osmotic damage?

Which of the followong types of microscopy is valuable in the identification of crystals that are able to rotate ight?

Allergic reactions are frequently associated with an increase in the prescence of:

Each of the following statements concerning endotoxin is correct EXCEPT:

Strand of RNA is made of

During midfetal life, the primary source of blood cells is the:

Which of the following antibodies would most likely be found in body secretions such as tears, milk, saliva and mucus?

After the microscope has been adjusted for Kohler illumination, light intensity should never be regulated by using the…

The hexose monophosphate pathway activity increases the RBC source of

Which one of the following statements is the MOST accurate comparison of human, bacterial, and fungal cells?

Normal Adult Hb A contains the following polypeptide chains:

A multilineage cytokine among the ILs is

What structure is most responsible for triggering Gram-negative shock?

Each of the following statements concerning bacterial spores is correct EXCEPT:

Individuals of blood group type AB:

Each of the following statements concerning exotoxins are correct EXCEPT:

Bacterial surface structures that show antigenic diversity include each of the following EXCEPT:

Which of the following activates more than 100 different enzymes?

Which single feature of normal RBC’s is most responsible for limiting their life span?

Which of the following is not included in fat-soluble vitamins?

The lipids of the RBC membrane are arranged:

Usually, bacteria form more endospores in response to:

In the bone marrow, RBC precursors are located:

A cancer chemotherapy patient has to have her intravenous port revised after it becomes blocked and the catheter is found to contain bacterial contaminants. Which of the following attributes is most likely to be a factor in this pathogenesis?

In the Iron cycle, the transferrin receptor carries:

How are the globin chains gene arranged? Note: a means alpha, B means beta

Each of the following statements regarding the selective action of antibiotics on bacteria is correct EXCEPT:

The presence of a capsule around bacterial cells usually indicates their increased disease-causing potential and resistance to disinfection. Capsules are generally viewed by:

Each of the following statements concerning the structure and chemical composition of bacteria is correct EXCEPT:

Each of the following statements concerning the surface structures of bacteria is correct EXCEPT:

The layer of the erythrocyte membrane that is largely responsible for the shape, structure, and deformability of the cell is the

Which one of the following is NOT true of the gene segments that combine to make up a heavy chain gene?

Which of the following BEST describes the mode of action of endotoxin?

During the Medullary Phase of hematopoietic development, which bone is the first to show hematopoietic activity?

An antigen that overstimualtes the immune system by binding nonspecifically to MHC on antigen presenting cells is termed

What is an organism called that respires on the presence of oxygen and ferments in the absence of oxygen?

Lipid exchange between the RBC membrane and the plasma occurs:

The membrane IgM and IgD on the surface of an individual B cell:

Which of the following is used to make rectified spirit by fermentation process?

Mitochondria are missing in

Which of the following gathers, organizes, and directs light through the specimen?

The maximum number of erythrocytes generated by one Multipotential Stem Cell is:

Which of the following are obtained from fruits, vegetables, and cereals?

Given the following values, calculate the RPI Observed reticulocyte count – 6% Hct-30°%

Each of the following statements concerning bacterial spores is correct EXCEPT:

The effect of endotoxin include each of the following EXCEPT:

Which of the following cells may develop in sites other than the bone marrow?

An immunoglobulin is a

The MAIN host defense against bacterial exotoxins is

Which of the following microscopic techniques provide three-dimensional images of a bacterial cell?