Cell Requirements (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What distinguishes organic substances from inorganic nutrients in cells?
What distinguishes organic substances from inorganic nutrients in cells?
Organic have C-H bonds; inorganic lack them
Approximately what percentage of protoplasm does water form?
Approximately what percentage of protoplasm does water form?
90%
Which ions enable proper functioning of cell membranes, nerve cells and muscle cells?
Which ions enable proper functioning of cell membranes, nerve cells and muscle cells?
and
Which gas is used during photosynthesis and released during aerobic respiration?
Which gas is used during photosynthesis and released during aerobic respiration?
Carbon dioxide
What is the ratio of carbon to hydrogen to oxygen atoms in carbohydrates?
What is the ratio of carbon to hydrogen to oxygen atoms in carbohydrates?
Which monosaccharides combine to form lactose?
Which monosaccharides combine to form lactose?
Glucose and galactose
Compared to carbohydrates, how much energy do lipids store?
Compared to carbohydrates, how much energy do lipids store?
Approximately twice the amount
What are the building blocks of proteins?
What are the building blocks of proteins?
Amino acids
Which base is found in RNA but not in DNA?
Which base is found in RNA but not in DNA?
Uracil
What are the three components of a nucleotide?
What are the three components of a nucleotide?
Sugar, base and phosphate group