Mer Scott
Quiz by , created more than 1 year ago

• Describe the function of the endocrine system in maintaining homeostasis and provide examples • Define the terms endocrine gland, hormone, receptor and target cell. • Describe the mechanism of hormone action for peptide hormones and catecholamines (water-soluble hormones). • Describe the mechanism of hormone action for steroid hormones and thyroid hormones (lipid-soluble hormones). •Be able to provide examples of hormonal feedback control.

20
1
0
Mer Scott
Created by Mer Scott almost 7 years ago
Close

32: Hormones Basic Structure and Function

Question 1 of 8

1

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

Select one of the following:

  • Regulation of the internal environment

  • Control of energy metabolism

  • Control of growth

  • Control of reproduction and development

  • Control of blood circulation

Explanation

Question 2 of 8

1

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

Drag and drop to complete the text.

    chemical messengers
    blood
    endocrine gland cells
    target cells

Explanation

Question 3 of 8

1

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

Select one of the following:

  • True
  • False

Explanation

Question 4 of 8

1

Choose the correct statements about water-soluble hormones.

Select one or more of the following:

  • Peptides are the most common kind of water soluble hormones.

  • Catecholamines like noradrenaline and adrenaline are the less common type of water soluble hormones.

  • Water-soluble hormones are made and released immediately via exocytosis.

  • They travel in the blood dissolved.

  • Their receptors are intracellular.

Explanation

Question 5 of 8

1

Choose the incorrect statement about lipid-soluble hormones.

Select one of the following:

  • They are insoluble in water.

  • Steroids and thyroid hormones are lipid-soluble hormones.

  • They are transported bound to a carrier protein in the blood.

  • Their receptors are intracellular.

  • Thyroid hormones are not stored, but steroids are stored.

Explanation

Question 6 of 8

1

Steroids are made from modifying the base steroid cholesterol.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 8

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 .

Drag and drop to complete the text.

    binding
    associated protein
    enzyme
    secondary messenger
    Secondary messengers
    cell response
    milliseconds to minutes
    minutes to hours

Explanation

Question 8 of 8

1

Select from the dropdown lists to complete the text.

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

Explanation

Previous
Next