Page 87 - Teknik Menjawab Soalan PSPM Biologi

Differences between cAMP and gene

activation

cAMP activation Gene activation cAMP activation Gene activation

mechanism mechanism mechanism mechanism

Involve non-steroid Involve steroid hormones Transcription and Transcription and

hormones translation do not translation do occurs

Hormones are Hormones are lipid occur

insoluble in lipid and soluble and can enter Produce faster Produce relatively slower
cannot enter the cell into target cell response response

Hormones bind to the Hormones bind to the Effects of hormones is Effects of hormones is

receptor found on cell receptor in cytoplasm or short term (ranging long term (ranging from a

membrane nucleus from a few minutes to few hours to a few days)

Hormones do not Hormones activate a a few hours)

activate the gene specific gene Involve a second No second messenger is

messenger (cAMP) in involved because

the cell hormones can enter

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