Organic Compounds: Proteins and Nucleic Acids (Grade 10 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which elements are ALWAYS found in proteins?
Which elements are ALWAYS found in proteins?
C, H, O, N
What makes an amino acid 'essential'?
What makes an amino acid 'essential'?
The body cannot make it
What does the primary structure of a protein refer to?
What does the primary structure of a protein refer to?
The order of amino acids in the chain
What is a biological catalyst?
What is a biological catalyst?
Speeds up reactions without being used up
What is the specially shaped region on an enzyme where reactions occur?
What is the specially shaped region on an enzyme where reactions occur?
Active site
What is the optimal temperature for human enzymes?
What is the optimal temperature for human enzymes?
37°C
What happens when an enzyme denatures?
What happens when an enzyme denatures?
It loses its shape and stops working
How do enzymes make reactions happen faster?
How do enzymes make reactions happen faster?
They lower the activation energy needed
What colour indicates a positive result in the Biuret test for proteins?
What colour indicates a positive result in the Biuret test for proteins?
Purple or violet
What is the main structural difference between DNA and RNA?
What is the main structural difference between DNA and RNA?
DNA is double-stranded, RNA is single