Ocr as biology - Study guides, Class notes & Summaries

OCR AS Level Biology A H020/02: Depth in Biology 2022 MarkScheme

This is the final mark scheme

This is the final mark scheme

This is the official question paper

1 a) amino acids form part of the structure of proteins. i) state the name given to the sequence of amino acids in a protein molecule [1] Correct Answer primary structure ; ii) draw the general structure of an amino acid molecule in the space below [3] Correct Answer NH2 at one end ; COOH at opposite end ; C in centre (of a single amino acid) bonded (separately) to one R and one H b) collagen is an important fibrous protein which forms part of the wall of blood vessels. i) state one prop...

QUESTIONS AND ANSWERS

AS OCR Biology A UPDATED Exam Questions and CORRECT Answers Describe the process of protein production. - Ans 1) Proteins synthesized on ribosomes bound to ER 2) Pass into cisternae 3) Packaged in transport vesicles 4) Move to Golgi via cytoskeleton 5) Fuse with cis face 6) Modified 7) Leave through trans face