The diagram shows the apparatus used in an investigation on seed germination - Leaving Cert Agricultural Science - Question 5 - 2017
Question 5
The diagram shows the apparatus used in an investigation on seed germination.
(a) What aspect of seed germination is being investigated?
(b) What change, if any, w... show full transcript
Worked Solution & Example Answer:The diagram shows the apparatus used in an investigation on seed germination - Leaving Cert Agricultural Science - Question 5 - 2017
Step 1
What aspect of seed germination is being investigated?
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Answer
The investigation examines the heat released from germinating seeds, highlighting that living organisms, like seeds during respiration, release heat.
Step 2
What change, if any, would you expect to find in the temperature inside each flask after 5 days?
Flask A.
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Answer
In Flask A, the temperature will rise due to the heat produced by the active respiration of the germinating peas.
Step 3
What change, if any, would you expect to find in the temperature inside each flask after 5 days?
Flask B.
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In Flask B, the temperature will remain the same as it contains boiled peas that are inactive and do not respire.
Step 4
Why was the inside of each flask sterilised at the beginning of the investigation?
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The inside of each flask was sterilised to kill microorganisms or to prevent contamination, which could affect the results and prevent the peas from rotting.
Step 5
State the three conditions necessary for seed germination.
(i)
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Water (or moisture)
Step 6
State the three conditions necessary for seed germination.
(ii)
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Suitable temperature (or warmth)
Step 7
State the three conditions necessary for seed germination.
(iii)
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Oxygen (or air)
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