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The bar chart shows the mass of wheat harvested on a farm each year from 2009 to 2015 - Edexcel - GCSE Biology - Question 5 - 2017 - Paper 1
Question 5
The bar chart shows the mass of wheat harvested on a farm each year from 2009 to 2015. (a) Put a cross (X) in the box next to your answer. Which of the statements ... show full transcript
Worked Solution & Example Answer:The bar chart shows the mass of wheat harvested on a farm each year from 2009 to 2015 - Edexcel - GCSE Biology - Question 5 - 2017 - Paper 1
Step 1
Put a cross (X) in the box next to your answer.
Answer
To determine which statements are true, we analyze the bar chart:
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The mass of wheat harvested did not increase every year (for example, the mass in 2011 decreased compared to 2010).
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In 2012, the bar shows that 100 tonnes of wheat was harvested.
Thus, the correct answer is: B statement 2 only.
Step 2
Describe how wheat plants absorb water from the soil.
Answer
Wheat plants absorb water from the soil primarily through their roots. The process can be described as follows:
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Root Absorption: The roots of wheat plants have specialized cells that transport water from the soil. This occurs through osmosis, where water moves from an area of higher concentration in the soil to an area of lower concentration in the root cells.
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Capillary Action: Water travels through the small spaces in the soil, and when this water reaches the roots, it is drawn up through capillary action along the root hairs into the plant's vascular system, mainly through the xylem.
These processes ensure that the wheat plants obtain sufficient moisture needed for growth and development.