Treatment of burns has been improved by the use of 'spray on skin' - VCE - SSCE Biology - Question 7 - 2005 - Paper 1
Question 7
Treatment of burns has been improved by the use of 'spray on skin'. Spray on skin consists of a suspension of individual skin cells from the patient that is sprayed ... show full transcript
Worked Solution & Example Answer:Treatment of burns has been improved by the use of 'spray on skin' - VCE - SSCE Biology - Question 7 - 2005 - Paper 1
Step 1
Describe one way in which intact skin contributes to homeostasis.
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Answer
Intact skin helps maintain homeostasis by acting as a barrier that prevents water loss from the body. This reduces dehydration and helps regulate body temperature.
Step 2
Suggest a reason for more rapid cell growth and division with the spray on skin technology.
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Answer
The spray on skin technique uses the patient's own bodily fluids, which provide necessary nutrients and a suitable environment for the skin cells. This promotes younger, more active cells that divide faster than older cells.
Step 3
Explain how the process of facilitated diffusion enables the uptake of glucose.
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Facilitated diffusion allows glucose to pass through lipid cell membranes via specific transport proteins. These proteins act as carriers, enabling glucose to enter cells without using energy, maintaining normal blood glucose levels.
Step 4
What is the target organ for this hormone?
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The target organ for the hormone released by the pancreas is the liver.
Step 5
How does this hormone cause an increase in blood glucose concentration?
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The hormone stimulates the liver to convert stored glycogen into glucose, which is then released into the bloodstream, thereby increasing blood glucose levels.
Step 6
State one advantage of form C.
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One advantage of form C is its extended duration of action, which allows less frequent administration while maintaining stable blood glucose levels.
Step 7
Describe one situation when it would be advantageous to use form A.
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Form A would be advantageous for rapid control of blood glucose levels in emergencies, such as during hypoglycemic episodes, as it acts quickly with a peak effect within 30 to 90 minutes.
