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A student plants some seeds to investigate germination - Leaving Cert Agricultural Science - Question 7 - 2022
Question 7
A student plants some seeds to investigate germination. During the investigation they also discover that a plant root structure is an important feature for the absor... show full transcript
Worked Solution & Example Answer:A student plants some seeds to investigate germination - Leaving Cert Agricultural Science - Question 7 - 2022
Step 1
(i) Identify one feature of the root which allows it to absorb nutrients.
Answer
One feature of the root that allows it to absorb nutrients is the presence of root hairs. These are tiny extensions of root cells that increase the surface area, facilitating greater absorption of water and minerals from the soil.
Step 2
Step 3
(iii) A farmer discovers his crop is deficient in the nutrient named in (ii) above. Describe (1) a symptom and (2) the treatment for this deficiency.
Answer
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A symptom of nitrogen deficiency in crops includes spindly yellow plants or yellowing leaves, often leading to stunted growth and premature leaf death.
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The treatment for this deficiency is to add a nitrogen-rich fertilizer, such as Urea or poultry manure, to the soil to promote healthy growth.