Which of the listing molecules participate in all of the 3 pathways of complement activation?
A. C1
B. C2
C3
D. C4
E. C5
F. C6-9
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Which molecules are expressed on the surface of immune cells?
A. TCR
B. Pattern recognition receptors (PRRs)
C. Pathogen-associated molecular patterns( PAMPs)
D. Interferons
Which of the followings are usually innate immune responses?
A. Inflammation
B. Phagocytosis
C. Humoral response
D. Complement response
E. Physical barriers
Which enzymes are needed in bacterial DNA replication?
A. Primase
B. DNA polymerases
C. DNA ligase
D. Helicase
E. DNA gyrase
Which cell structure is usually present in bacterial but not eukaryotic cells?
A. Cell wall
B. Sex pili
C. Ribosome
D. Nucleus
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