Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
Describe the mechanism of action of non-steroid hormones at their target cells.
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State 3 ways non-steroid and steroid hormones differ in their mechanism of action.
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Which of the following correctly describes steroid hormones?
transcription factors made from amino acids
lipid-soluble signals that diffuse across cell membranes
water-soluble signals that bind cell-surface receptors
peptide hormones that enter the cell nucleus
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Which of the following is NOT an endocrine gland that secretes hormones directly into the bloodstream?
pancreas
pituitary gland
hypothalamus
adrenal glands
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Which feature makes the nervous system able to bring about faster effects than the endocrine system?
storage of neurotransmitters in synaptic vesicles
direct connections with target tissues
use of electrical signals instead of chemical signals
reuptake of neurotransmitters after release
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Give 3 differences between endocrine and neuronal communication.
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How do hormones act as chemical messengers between cells?
they travel via the bloodstream
they break down in the blood
they detach from receptors on target cells
they are produced by neuron cells
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Which feature applies to hormonal but NOT neuronal communication?
signals are transmitted by neurones
transmission is widespread
signals are nerve impulses
effects last a short duration
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What causes a target cell to respond after a hormone binds to its receptors?
the receptor changes shape
the cell metabolism increases
the hormone enters the cell nucleus
the hormone breaks down
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What system works with the endocrine system to maintain homeostasis in the body?
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