H420 2 - Study guides, Class notes & Summaries

OCR GCE A LEVEL BIOLOGY A -MARK SCHEME JUNE 2003 (H420-2)Biological diversity

A Level Biology A H420/02 Biological diversitySECTION A You should spend a maximum of 20 minutes on this section. Write your answer for each question in the box provided. Answer all the questions. 1 Which of the following best describes a microscope with high resolution? A The microscope can distinguish structures that are very close together. B The microscope can view structures that are very small. C The microscope is capable of high magnification. D The microscope has an in-built eye...

OCR A LEVEL BIOLOGY JUNE 2022 BIOLOGY A H420 PAPER 2 ACTUAL QUESTION PAPER

Contents Introducing…A Level Biology A ii Teaching and learning resources iii Professional development iv 1 Why choose an OCR A Level in Biology A? 1 1a. Why choose an OCR qualification? 1 1b. Why choose an OCR A Level in Biology A? 2 1c. What are the key features of this specification? 3 1d. How do I find out more information? 4 2 The specification overview 5 2a. Overview of A Level in Biology A (H420) 5 2b. Content of A Level in Biology A (H420) 6 2c. Content of modules 1 to 6 8 ...

OCR: OXFORD CAMBRIDGE: A LEVEL BIOLOGY A-2021: H420/02 BIOLOGICAL DIVERSITY ACTUAL QUESTION PAPER MERGED WITH MARK SCHEME SECTION A You should spend a maximum of 20 minutes on this section. Answer all the questions. 1 If a person is bitten by a venomous snake, the immediate treatment is normally to inject the person with the appropriate antibodies. This is an example of which type of immunity? A artificial active immunity B artificial passive immunity C natural active immu...

OCR A_Level Biology Paper 1 Marking Scheme. Question Answer Marks AO element 1 D 1 1.2 2 B 1 1.1 3 A 1 1.1 4 A 1 1.1 5 B 1 1.1 6 B 1 1.1 7 B 1 1.1 8 B 1 1.1 9 A 1 2.6 10 A 1 2.6 11 C 1 2.3 12 C 1 2.4 13 B 1 1.1 14 C 1 1.2 15 B 1 2.5 Total 15 H420/01 Mark Scheme Question Answer Marks AO element 16 (a) (i) adenine 1 2.1 DO NOT ALLOW adenosine IGNORE nitrogenous base / purine (a) (ii) hydrolysis 1 2.1 IGNORE dephosphorylation (a) (ii...

A Level Biology A H420/02 Biological diversity Sample Question Paper Date – Morning/Afternoon Version 2.2 Time allowed: 2 hours 15 minutes You may use: • a scientific or graphical calculator * 0 0 0 0 0 0 * First name Last name Centre number Candidate number INSTRUCTIONS • Use black ink. You may use an HB pencil for graphs and diagrams. • Complete the boxes above with your name, centre number and candidate number. • Answer all the questions. • Where appropriate, you...

OCR GCE A LEVEL BIOLOGY A MARK SCHEME (H420-2)Biological diversity

ALevel and AS Level Biology OCRA Biology Module 2 (2.6) Cell division. Revision notes and summary notes. H020 and H420. OCR Specification. Breadth and depth of biology. Paper 1,2,3