The biological activity that is exclusively associated with IgA is its ability t

Question

The biological activity that is exclusively associated with IgA is its ability to a. cross the placenta b. react with specific antigen c. resist digestion on mucosal surfaces d. fix complement The first immunoglobulin class seen in an immune response is a. IgA b. IgM c. IgG d. IgE All of the following are involved in transcription, except a. RMA polymerase b. primer c. promoter d. uracil A lactic acid fermentation starts with a molecule of _____, produces _____ mole(s) of _____, and generates _____mole(s) of ATP a. glucose: 1: carbon dioxide: 2 b. lactic acid: 2: carbon dioxide: 1 c. glucose: 2: lactic acid: 2 d. pyruvate: 1: lactic acid: 1 The source of the electrons transferred during fermentation is a. an inorganic intermediate b. the electron transport chain c. NADH produced in the Krebs cycle d. NADH produced during glycolysis The ATP molecules generated during fermentations come from a. substrate-level phosphorylation b. glycolysis c. the exclusion of oxygen from the process d. a and b A plasmid that car. replicate in E. coli and Pseudomonas is most likely a/an a. broad host range plasmid b. self-transmissable plasmid c. high-copy-number plasmid d. essential plasmid The person with the most protection against a particular infectious disease is the one who can give a _____ immune response to the agent that is responsible for that disease a. primary b. secondary c. anamnestic d. b and c "Booster' shots are given to make sure that an immune system retains its _____ for a particular _____. a. primary response: disease b. antigen: antibody c. antibody: biochemical d. memory: antigen

Explanation / Answer

Answers: -

62.option "c"-resist digestion on mucosal surfaces.

Explanation: -Immunoglobulin A (IgA, also referred to as sIgA) is an antibody that plays a crucial role in the immune function of mucous membranes.

63.option "b"-Ig M.

Explanation: -IgM is produced in primary immune response.

64.option "b"-primer.

Explanation: -primer involved in DNA replication.

65.option "c"-glucose, 2,lactic acid, 2.

66.Option "-d"NADH produced by glycolysis.

67.Option "d"-a and b

Explanation: -substrate level phosphorylation in glycolysis.

68.Option "a"-broad host range plasmid.

69.option "d"-b and c.

Explanation-:-secondary immune response is also called as anamnestic immune response.

70.Option "d"-memory and antigen.

Explanation: -

Primary immune response memory will be retained.

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