MCQs Mock Test for Lab Technicians and Technologists: Chapter 39

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

The MAIN host defense against bacterial exotoxins is

The effect of endotoxin include each of the following EXCEPT:

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

In the bone marrow, RBC precursors are located:

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

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

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

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

Which of the following activates more than 100 different enzymes?

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

An immunoglobulin is a

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

Normal Adult Hb A contains the following polypeptide chains:

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

In the Iron cycle, the transferrin receptor carries:

Mitochondria are missing in

A multilineage cytokine among the ILs is

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

Individuals of blood group type AB:

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

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

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?

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

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

Usually, bacteria form more endospores in response to:

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

The hexose monophosphate pathway activity increases the RBC source of

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

Lipid exchange between the RBC membrane and the plasma occurs:

Strand of RNA is made of

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

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

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

Each of the following statements concerning exotoxins are correct EXCEPT:

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

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

The lipids of the RBC membrane are arranged:

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

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

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

Each of the following statements concerning endotoxin is correct EXCEPT:

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

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

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

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

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

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

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