peptide and steroid hormones

An organ that produces secretions called hormones is known as a :

• chemical
• gland
• hormone
• duct

Water soluble hormones

• Peptide hormones

• Lipid hormones

• Steroid hormones

Epinephrine and norepinephrine are produced in what structure?

• adrenal medulla

• adrenal cortex

• pineal gland

• thyroid gland

Lipid soluble hormones

• peptide hormones

• protein based hormones

• steroid hormones

Signal transduction is best defined as

• carrying a signal from outside a cell to the inside of that cell

• a detectable change in a cell's environment

• transmission of an electrical signal across a synapse

• gene expression in response to active transcription factors in the nucleus

cAMP is a

• hormone

• sugar

• lipid

• second messenger

Peptide hormone action is

• generally fast

• generally slow

• unpredictable

• all of these

Membrane receptors are needed for

• steroid hormones

• peptide hormones

• all hormones

• no hormones

These hormones always involve transcription of DNA and the creation of new proteins in the target cell.

• steroid hormones

• protein hormones

• all hormones

If mitochondria are affected by the action of a hormone, it will alter

• mitosis rates

• metabolic rates

• cell permeability

• muscle contraction rates