Bio 442 Lecture 3 Quiz PDF

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Lecture 3 Quiz...

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BIO442 Lecture 3 quiz, 9/21/2020

I. Please fill in the blanks and multiple choice: 1.. Basophils, eosinophils, and neutrophils all belong to the category of granulocytes. Basophils specialize in dealing with a type of pathogen called parasite, eosinophils for viruses, and neutrophils for bacteria.

2. Mast cells express cell-surface receptors that can be bound to by a type of immunoglobulin called Histamin.

3. Three types of antigen presentation cells include dendritic cells, macrophages, and B cells.

4. A substance called prostaglandins increases blood flow to sites of infection.

5.. Histamine has two functions: To dilate blood vessels and to increase cell permeability.

6.. Upon activation and degranulation, eosinophils release several types of cytokines including TGF-beta, TNF-alpha, interleukin-1, and interleukin-6.

7.. Pro-monocytes are found in bone marrow, mature monocytes are found in blood, and macrophages which are differentiated monocytes are found in tissues.

8.. Eosinophilia is defined as having more than _________ cells/μL in Blood. A. 100 B. 200

C. 500 D. 1,000

9.. RNase is an enzyme that degrades ________. A. DNA B. mRNA C. Polypeptides D. Proteins

10.. Lysozymes degrade the cell wall of _________. A. Prokaryotes B. Eukaryotes C. Bacteria

D. Plasmodium

11.. The main immunoglobulin secrets as an immune response to new antigen is ________. A. IgG B. IgA

C. IgM D. IgE

12.. _______ is secreted in large amounts as a secondary immune response. A. IgG B. IgA C. IgM D. IgE

13... Primary immune organs include A. Thymus

B. Spleen C. Bone marrow D. Lymph nodes

14.. The appendix is not useless as conventionally believed. It stores a small amount of _________. A. Enzymes B. Probiotics C. Antibodies D. Immunoglobulins 15.. The binding site on antigen is called _________ whereas the binding site on antibody is called _________. A. Epitope ... paratope B. Disulfide bond ... hydrogen bonds C. Monomer ... pentameter

D. Fab ... Fc

III. BIO442 Lecture 2 Additional quiz relevant to the current pandemic: True or false. If false, please provide an explanation as to why the statement is false.

1. Herd immunity typically refers to 50% of the population of the community showing immunity. False the classical herd immunity level is 60% which is obtained via immunization. 2. Herd immunity can be achieved through natural infection. True, it can be achieved via vaccination or natural infection. 3. mRNA-based vaccines are useless because RNA is unstable. False they aren’t useful they just haven't yet to have findings which show substantial evidence to be useful for a large percentage of people. It does have potential and many advantages like a potential for a universal vaccine, and that they don’t require...