Which of the following is NOT typically found in primary plant cell walls?
a. lignin
b. hemicelluloses
c. pectin
d. cellulose
e. chitin
A
Biology & Microbiology
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What is similar about G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs)?
A. Both are directly bound to G proteins B. Both can activate phospholipase C C. Both are enzymes D. Both are activated by autophosphorylation
Biology & Microbiology
Most antipsychotic medications act by blocking _________ receptors.
A) serotonergic B) dopaminergic C) cholinergic D) muscarinic
Biology & Microbiology
what leads to rickets in children
What will be an ideal response?
Biology & Microbiology
Which of the following describes flash pasteurization?
A) heating at 63°C for 30 minutes B) heating at 72°C for 15 seconds C) heating at 72°C for 15 minutes D) heating at 134°C for one second E) passing liquid through steam at 140°C
Biology & Microbiology