2.7 Elements in carbohydrates, proteins and lipids
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Which element is found in proteins but not in carbohydrates?
(1)Total for this question: 1 mark
2(c) BIOLOGICAL MOLECULES · EXAM QUESTIONS
2.7 Elements in carbohydrates, proteins and lipids
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2.7 Elements in carbohydrates, proteins and lipids
Exam question
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Which elements make up a lipid?
(1)Total for this question: 1 mark
2.7 Elements in carbohydrates, proteins and lipids
Exam question
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Which molecule contains nitrogen?
(1)Total for this question: 1 mark
2.7 Elements in carbohydrates, proteins and lipids
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Name the three chemical elements found in all carbohydrates.
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Total for this question: 3 marks
2.7 Elements in carbohydrates, proteins and lipids
Exam question
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Give the element present in proteins that is not present in lipids.
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Total for this question: 1 mark
2.7 Elements in carbohydrates, proteins and lipids
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Explain why plants need nitrate ions to make proteins but not to make starch.
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Total for this question: 2 marks
2.7 Elements in carbohydrates, proteins and lipids
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Complete the sentences. Carbohydrates contain carbon, hydrogen and ___. Proteins also contain ___. Lipids contain the same elements as ___.
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Total for this question: 3 marks
2.7 Elements in carbohydrates, proteins and lipids
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A substance contains carbon, hydrogen, oxygen and nitrogen. Suggest which type of biological molecule it is.
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Total for this question: 1 mark
2.7 Elements in carbohydrates, proteins and lipids
Exam question
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Compare the elements in carbohydrates and proteins.
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Total for this question: 2 marks