Zusammenfassung der Ressource
Frage 1
Frage
Which of these is not a function of the endocrine system?
Antworten
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Regulation of the internal environment
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Control of energy metabolism
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Control of growth
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Control of reproduction and development
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Control of blood circulation
Frage 2
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Hormones are [blank_start]chemical messengers[blank_end] carried in the [blank_start]blood[blank_end], secreted by [blank_start]endocrine gland cells[blank_end]. They travel to all parts of the body but only affect [blank_start]target cells[blank_end].
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chemical messengers
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blood
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endocrine gland cells
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target cells
Frage 3
Frage
Peptides are chains of amino acids which are soluble in water.
Frage 4
Frage
Choose the correct statements about water-soluble hormones.
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Peptides are the most common kind of water soluble hormones.
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Catecholamines like noradrenaline and adrenaline are the less common type of water soluble hormones.
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Water-soluble hormones are made and released immediately via exocytosis.
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They travel in the blood dissolved.
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Their receptors are intracellular.
Frage 5
Frage
Choose the incorrect statement about lipid-soluble hormones.
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They are insoluble in water.
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Steroids and thyroid hormones are lipid-soluble hormones.
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They are transported bound to a carrier protein in the blood.
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Their receptors are intracellular.
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Thyroid hormones are not stored, but steroids are stored.
Frage 6
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Steroids are made from modifying the base steroid cholesterol.
Frage 7
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In the cellular response to receptor activation by water soluble hormones, the [blank_start]binding[blank_end] of the hormone to the membrane receptor activates an [blank_start]associated protein[blank_end]. There is typically an [blank_start]enzyme[blank_end] next in the transfer of information which then produces a [blank_start]secondary messenger[blank_end]. [blank_start]Secondary messengers[blank_end] can go on to activate more proteins and/or enzymes in a chain until the [blank_start]cell response[blank_end] is produced, which can take anywhere from [blank_start]milliseconds to minutes[blank_end].
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binding
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associated protein
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enzyme
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secondary messenger
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Secondary messengers
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cell response
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milliseconds to minutes
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minutes to hours
Frage 8
Frage
Label the steps of cellular responses to lipid-soluble hormones from first (1) to last (7).
[blank_start]3[blank_end]. Hormone binds to intracellular receptor.
[blank_start]7[blank_end]. New protein mediates cell's specific response (hours - days)
[blank_start]4[blank_end]. Hormone-receptor complex acts as a specific transcription factor.
[blank_start]2[blank_end]. Hormone diffuses across membrane.
[blank_start]5[blank_end]. New mRNA is generated.
[blank_start]1[blank_end]. Lipid soluble hormone dissociates from carrier protein.
[blank_start]6[blank_end]. New protein is generated by translation of mRNA
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