32: Hormones Basic Structure and Function

1

Which of these is not a function of the endocrine system?

1

Hormones are ❌ carried in the ❌, secreted by ❌. They travel to all parts of the body but only affect ❌.

chemical messengers

blood

endocrine gland cells

target cells

1

Peptides are chains of amino acids which are soluble in water.

1

Choose the correct statements about water-soluble hormones.

1

Choose the incorrect statement about lipid-soluble hormones.

1

Steroids are made from modifying the base steroid cholesterol.

1

In the cellular response to receptor activation by water soluble hormones, the ❌ of the hormone to the membrane receptor activates an ❌. There is typically an ❌ next in the transfer of information which then produces a ❌. ❌ can go on to activate more proteins and/or enzymes in a chain until the ❌ is produced, which can take anywhere from ❌.

binding

associated protein

enzyme

secondary messenger

Secondary messengers

cell response

milliseconds to minutes

minutes to hours

1

Label the steps of cellular responses to lipid-soluble hormones from first (1) to last (7).
( 1, 2, 3, 4, 5, 6, 7 ). Hormone binds to intracellular receptor.
( 1, 2, 3, 4, 5, 6, 7 ). New protein mediates cell's specific response (hours - days)
( 1, 2, 3, 4, 5, 6, 7 ). Hormone-receptor complex acts as a specific transcription factor.
( 1, 2, 3, 4, 5, 6, 7 ). Hormone diffuses across membrane.
( 1, 2, 3, 4, 5, 6, 7 ). New mRNA is generated.
( 1, 2, 3, 4, 5, 6, 7 ). Lipid soluble hormone dissociates from carrier protein.
( 1, 2, 3, 4, 5, 6, 7 ). New protein is generated by translation of mRNA