Tissue culture can be used to grow new tissues in the laboratory - Leaving Cert Biology - Question e - 2012
Question e
Tissue culture can be used to grow new tissues in the laboratory.
(i) What is a tissue?
(ii) Name a gas that would be needed for the growth of tissue in the labora... show full transcript
Worked Solution & Example Answer:Tissue culture can be used to grow new tissues in the laboratory - Leaving Cert Biology - Question e - 2012
Step 1
What is a tissue?
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Answer
A tissue is a group of cells that work together to perform a specific function.
Step 2
Name a gas that would be needed for the growth of tissue in the laboratory.
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Answer
Oxygen is essential for the growth of tissue in the laboratory.
Step 3
Why are sterile conditions needed to grow the tissue?
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Sterile conditions are crucial to avoid contamination, which can introduce unwanted microorganisms that might harm the tissue culture.
Step 4
What type of cell division, mitosis or meiosis, is involved in tissue culture?
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Mitosis is the type of cell division involved in tissue culture.
Step 5
What medical term is used to describe the disease caused by uncontrolled mitosis in human cells?
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The medical term for this condition is cancer.
Step 6
Give two causes of this uncontrolled cell division.
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Two causes of uncontrolled cell division include radiation exposure and smoking.
Step 7
Draw a labelled diagram to show the normal cell cycle.
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The diagram should include various phases of the cell cycle: Interphase (G1, S, G2) and M Phase (Mitosis). Ensure to label the cycle and proportionally represent the phases.
Step 8
What is the function of meiosis?
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The function of meiosis is the reduction (halving) of chromosome numbers to produce gametes, allowing reduction division.
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