Plant cells and fungal cells are similar in structure - AQA - GCSE Biology - Question 2 - 2022 - Paper 1
Question 2
Plant cells and fungal cells are similar in structure.
Figure 2 shows a fungal cell.
Name one structure in Figure 2 which is present in both plant cells and fungal... show full transcript
Worked Solution & Example Answer:Plant cells and fungal cells are similar in structure - AQA - GCSE Biology - Question 2 - 2022 - Paper 1
Step 1
Name one structure in Figure 2 which is present in both plant cells and fungal cells but not in animal cells.
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Answer
The structure present in both plant cells and fungal cells, but not in animal cells, is the cell wall.
Step 2
Which disease is caused by a fungus?
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Answer
The disease caused by a fungus is 'Rose black spot.'
Step 3
How many times would this fungal cell divide in 24 hours?
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Answer
In 24 hours, the fungal cell divides 16 times. This is calculated as follows:
24 hours = 1440 minutes
Number of divisions = 1440 minutes / 90 minutes = 16.
Step 4
Where is protein digested in the human digestive system?
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Answer
Protein is primarily digested in the stomach.
Step 5
Which chemical could be used to test if the burgers contain protein?
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Answer
The chemical used to test for protein in the burgers is 'Biuret reagent.'
Step 6
Evaluate the use of burgers made from meat compared with meat-free burgers in providing humans with a healthy, balanced diet.
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Answer
Burgers made from meat and meat-free burgers each have their own nutritional benefits.
Nutritional Comparison
Meat Burgers:
Contain more protein, which is essential for bodily growth and repair.
High fat content (16.0 g), which may contribute to heart-related health issues if consumed excessively.
Higher cholesterol content (120 mg), which can increase the risk of cardiovascular diseases.
Meat-Free Burgers:
Higher fiber content (5.5 g), which aids digestion and can prevent constipation.
Lower fat (5.2 g) and cholesterol (0.0 mg), making them a better option for heart health.
Overall Assessment
Meat-free burgers are generally viewed as healthier options due to their lower fat and cholesterol levels, along with higher fiber contents, which aid digestion.
Conversely, meat burgers provide more protein but come with health risks associated with high fat and cholesterol.
Consideration should also be given to ethical and environmental concerns associated with meat production.
In summary, a balanced diet can be achieved through either option, but meat-free burgers may be preferable for those concerned about health risks associated with excessive fat and cholesterol intake.
