Cells are able to release signalling molecules within the body and outside the body in many different ways - VCE - SSCE Biology - Question 17 - 2019 - Paper 1
Question 17
Cells are able to release signalling molecules within the body and outside the body in many different ways. Consider the table below.
Which row correctly matches th... show full transcript
Worked Solution & Example Answer:Cells are able to release signalling molecules within the body and outside the body in many different ways - VCE - SSCE Biology - Question 17 - 2019 - Paper 1
Step 1
Produces a rapid response
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Answer
Neurotransmitters are known for their ability to produce a rapid response, particularly in the nervous system where they facilitate quick communication between neurons.
Step 2
Can target many cells or organs at once, but are not the most rapid
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Answer
Cytokines are signaling molecules that can affect a wide range of cells and are involved in various immune responses, making them capable of targeting multiple cells simultaneously, though they are not as rapid as neurotransmitters.
Step 3
Can affect another organism at a distance
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Answer
Pheromones, which are excreted substances used for communication between organisms, can affect other organisms at a distance.
Step 4
Targets nearby cells during inflammation
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Answer
Hormones typically circulate throughout the body, but during inflammation, cytokines are the primary signaling molecules that target nearby cells.
