Endocrine System Hormones Quiz

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Questions and Answers

What are steroid hormones primarily derived from?

  • Fatty acids
  • Cholesterol (correct)
  • Amino acids
  • Proteins

Steroid hormones cannot pass through the plasma membranes of target cells.

False (B)

Name one example of an amino acid derivative hormone.

Adrenaline

Amino acid derivative hormones bind with ______ carriers in blood circulation.

<p>protein</p>
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Match the following hormones with their chemical nature:

<p>Testosterone = Steroid Hormone T3 = Amino Acid Derivative Hormone Estrogen = Steroid Hormone Adrenaline = Amino Acid Derivative Hormone</p>
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Which of the following statements about peptide hormones is true?

<p>They are transported in circulation in an unbound state. (D)</p>
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Peptide hormones can pass across the plasma membrane of target cells.

<p>False (B)</p>
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Name two examples of peptide hormones.

<p>Insulin and glucagon</p>
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Insulin is a type of _____ hormone.

<p>peptide</p>
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Match the following peptide hormones with their functions:

<p>Insulin = Regulates blood sugar levels Glucagon = Increases blood sugar levels Calcitonin = Lowers blood calcium levels Pituitary hormones = Regulates various endocrine functions</p>
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Flashcards

Peptide Hormones

Hormones composed of amino acids, water-soluble, and travel freely in blood.

Hydrophilic nature

Water-loving; these hormones cannot pass through cell membranes.

Target Cells

Cells that respond to a specific hormone.

Human Insulin Structure

Complex protein structure made of interconnected chains of amino acids.

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Transport in blood

Peptide hormones travel freely, unbound, in the blood stream.

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Unbound Peptide Hormones

Transport of peptide hormones without carrier proteins.

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Plasma Membrane

The outer boundary of a cell that controls what enters and exits.

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Steroid Hormones

Lipid hormones derived from cholesterol, transported bound to proteins, and cross cell membranes directly.

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Steroid Hormone Transport

Steroid hormones travel in the bloodstream attached to protein carriers.

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Lipid Hormone Nature

Steroid hormones are a type of lipid, soluble in fats.

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Amino Acid Derivative Hormones

Hormones made from tyrosine amino acids.

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Amino Acid Hormones Transport

Amino acid derivative hormones travel in the bloodstream often bound to protein carriers.

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T3 and T4

Thyroid hormones derived from tyrosine, often with protein carriers in the blood.

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Adrenaline/Noradrenaline

Hormones derived from tyrosine that are involved in stress responses.

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