(a) First messenger
(b) The Second messenger
(c) Both (a) and (b)
(d) None of the above
Biology MCQs
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(a) In multicellular organisms, cell communicate using hormones
(b) In unicellular organisms, cell communicate using extracellular signaling molecules
(c) In multicellular organisms, cell communicate using intracellular signaling molecules
(d) None of the above
March 31, 2024
(a) Enzyme-linked receptors
(b) G protein-linked receptors
(c) Ion-channel linked receptors
(d) All of the above
March 31, 2024
(a) G proteins are involved in signal cascades
(b) G proteins become activated when bound to GDP
(c) Guanine nucleotides regulate G proteins
(d) None of the above
March 31, 2024
(a) Proteases
(b) Nitric oxides
(c) G proteins
(d) Neurotransmitters
March 31, 2024
(a) Hormones
(b) Chemicals
(c) Cholesterol
(d) Carbohydrates
March 31, 2024
(a) Two
(b) Four
(c) Five
(d) Seven
March 31, 2024
(a) Steroids
(b) Corticoids
(c) Terpenoids
(d) Eicosanoids
March 31, 2024
(a) The messenger molecules are large
(b) The messenger molecules are short
(c) The messenger molecules are stable
(d) The messenger molecules are unstable
March 31, 2024
(a) Four
(b) Five
(c) Seven
(d) Eight
March 31, 2024