MI Unit 1 Review

_____________ have surface _________ where __________ attach.

• a. Pathogens, antibodies, antigens

• b. Antibodies, antigens, pathogens

• c. Pathogens, antigens, antibodies

• d. Antibodies, pathogens, antigens

• e. Antigens, pathogens, antibodies

Dr. Eliert is trying to find the path of infection for a highly contagious virus ravaging his small town. In doing so, she performs an ELISA with the antibody. The first tube has a 400ng/ml sample of antibody and the dilution rate is ¼. What is the final concentration of the 4th tube?

• 6.25 ng/mL

• 1.56 ng/mL

• 25 ng/mL

• 100 ng/mL

Gram positive bacteria have a thicker cell wall......

• True

• False

The whiplike tail on some bacteria that help them move

• Nucleoid

• Pili

• Flagella

• Cilia

Match the Fluoroquinolone antibiotics to their mode of action

• Competitively inhibit enzymes required for folic acid synthesis

• Prevent DNA replication by inhibiting enzymes required for DNA uncoiling

• Inhibit enzymes required for the production cell wall material

• Inhibit tRNA binding on ribosomes and preventing protein synthesis

Match the Sulphonamide antibiotics to their mode of action

• Competitively inhibit enzymes required for folic acid synthesis

• Prevent DNA replication by inhibiting enzymes required for DNA uncoiling

• Inhibit enzymes required for the production cell wall material

• Inhibit tRNA binding on ribosomes and preventing protein synthesis

Beta-Lactam (Penicillins) work by

• inhibiting enzymes involved in the final steps of cell wall synthesis

• inhibiting the replication of DNA within the bacterial cells

• inhibiting the folic acid synthesis pathway in bacterial cells

• prevents the continuation of protein synthesis

Select the correct definition for antibiotics.

• Chemicals which destroy bacteria.

• Chemicals which destroy fungi.

• Chemicals which destroy viruses.

• Chemicals which destroy parasites.

The transfer of genetic material from one organism to another by a genetic vector, such as a bacteriophage is the process of transduction

• true

• false

What is genetic transformation?

• A prokaryotic cell turning into a eukaryotic cell

• Foreign DNA being inserted into a plasmid

• A host organism taking in foreign DNA

• A gene being mutated