Practice B1.2 Proteins with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What is true of essential amino acids?
Which statement best explains the infinite variety of polypeptides?
Which of the following processes employs simple diffusion to travel across the membrane?
During peptide bond formation, which two atoms are directly linked by the bond?
Which functional groups are involved in a condensation reaction between two amino acids to form a peptide bond?
What would be a nutritional concern in a diet lacking one or more essential amino acids?
A person consumes large amounts of protein but still shows signs of muscle loss. What is a possible cause related to amino acid intake?
Which of the following changes is least likely to result from denaturation of a protein?
Why is it especially important for vegans to combine different plant protein sources in their diet?
Which of the following occurs during hydrolysis of a polypeptide?