Ocr a level biology exam - Study guides, Class notes & Summaries

OCR Biology A Level EXAM WITH QUESTIONS AND ANSWERS Change in the sequence of bases in DNA - CORRECT ANSW-What is a mutation? Substitution, deletion and insertion - CORRECT ANSWWhat are the three ways the base sequence can be altered? Point mutation - CORRECT ANSW-What is the term for a mutation where only one nucleotide is affected? degenerate code new amino acid is similar amino acid not involved with proteins function - CORRECT ANSW-What are the causes of a silent mutatio...

OCR Biology A Level EXAM WITH QUESTIONS AND ANSWERS Change in the sequence of bases in DNA - CORRECT ANSW-What is a mutation? Substitution, deletion and insertion - CORRECT ANSWWhat are the three ways the base sequence can be altered? Point mutation - CORRECT ANSW-What is the term for a mutation where only one nucleotide is affected? degenerate code new amino acid is similar amino acid not involved with proteins function - CORRECT ANSW-What are the causes of...

OCR BIOLOGY A LEVEL 2022 NEW EXAM SOLUTION PRACTICE SOLUTION

Which elements do nucleotides contain? - answer-Carbon, hydrogen, nitrogen, oxygen and phosphorous What are the two types of nucleic acid? - answer-DNA and RNA What is a nucleic acid? - answer-A large monomer made up of many nucleotide monomers linked in a chain What are the 3 components of DNA and RNA? - answer-1. Phosphoryl group 2. Pentose monosaccharide (Deoxyribose in DNA, Ribose in RNA) 3. An organic, nitrogenous base (ATGC in DNA, AUGC in RNA) How are the components in a nuc...

OCR A A level biology notes for chapter 14 hormonal communication, taken from the textbook. These detailed notes include everything you need to know about this chapter for the exam and helped me achieve an A grade at A level. (includes diagrams!!) ( download quality much better than preview page quality :) )

The document involves A level Biology questions that are mostly linked to mathematical skills such as standard deviation, chi squared test etc. These questions have been selected very carefully to provide you with a well rounded view on investigational skill in OCR A Level Biology. You will also have the mark scheme attached at the end of the document.

Role of cytokines during inflammation - ANSWER Attract phagocytes to the site then phagocytosis and increase temp, act as cell signalling molecules Structure of neutrophil - ANSWER Nucleus looks like 3 interconnected blobs -multilobed. Cytoplasm is grainy Structure of lymphocyte - ANSWER Smaller than neutrophil. Nucleus takes up most of the cell Structure of a monocyte - ANSWER Biggest white blood cell, type of phagocyte . Kidney bean shaped nucleus and a non-grainy cytoplasm. Agglutin...

In this document you will have the most high demand questions for A-Level Biology Paper 3 OCR A. You have most important topics that come up almost every year with mark schemes at the end. They have been carefully selected for your own benefit. These questions are a good way to prepare yourselves for your incoming exams and mocks.

These are exam questions for Ecosystems in Module 6 A level Biology. These questions can come up in your topic test assessments and are also a great way of preparing yourselves for your mocks and exams at the end of the year. Mark scheme is at the end of the document