1- PKCs
are membrane-bound
are Ser/Thr kinases
vary in activation profile
all of the above

2- Not a type of PKC
classic
novel
typical
mue

3- The regulatory domain of PKC
is in the same polypeptide as the catalytic domain
binds phosphatidic acid
is a dimer
all of the above

4- May activate some PKC isozymes
phospholipids
phosphorylation
autophosphorylation
all of the above

5- PLD may be activated by
PKC
small G-proteins
heterotrimeric G-proteins
the first two are correct

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Answers:

1- PKCs
Answer: all of the above ( are membrane-bound AND are Ser/Thr kinases AND vary in activation profile)

2- Not a type of PKC
Answer: typical

3- The regulatory domain of PKC
Answer: is in the same polypeptide as the catalytic domain

4- May activate some PKC isozymes
Answer: all of the above (phospholipids AND phosphorylation)

5- PLD may be activated by
Answer: the first two are correct (PKC AND small G-proteins)