Biology A H020: Biological molecules Topical Past Paper Questions
OCR AS Biology A (H020) past-paper questions on Biological molecules, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
(a) (i) The general structure of an amino acid molecule has one R group and two other groups. Name the two other groups in an amino acid molecule. 1 .....2 [2] (ii) Below is a diagram of a dipeptide. Draw a circle around the peptide bond. Answer on the diagram. (iii) Name the typ…
(a) A group of students was provided with a sample of an unknown liquid and various chemical reagents. It was suggested that the sample of unknown liquid contained protein. Here is the chemical test proposed by one of the students to test this suggestion: • Add 3 cm $ ^{3} $ of u…
The information below is about carbohydrates. • Glucose is a monomer of polysaccharides such as glycogen and starch. • Glucose is an important source of energy in animals and is transported in the circulatory system. • Glycogen is an energy storage molecule found in many animals.…
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