Biology a paper 4 qp - Study guides, Class notes & Summaries

OCR GCSE (9–1) Biology A (Gateway Science) J247/04 Paper 4 QP Higher Tier2024

OCR GCSE (9–1) Biology A (Gateway Science) J247/04 Paper 4 QP Higher Tier2024

AQA-7402-3-QP-BIOLOGY QUESTION PAPER 3-A LEVEL-19Jun24. A-level BIOLOGY Paper 3 0 1 . 1 In the following passage, each numbered space can be filled with a biological term. Each type of cell has specific molecules on its (1) that identify it. An antibody is a (2) with two (3) binding sites. Antibodies are made and released by (4) cells. Vaccines can provide protection for individuals and populations against disease. The response to a vaccine is an example of (5) immunity. (6) immunity ...

AQA A LEVEL BIOLOGY PAPER 2 JUNE 2023 QUESTION PAPER (7402/2) 2023/8/31 Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature A-level BIOLOGY Paper 1 I declare this is my own work. Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • An...

AQA Biology A-Level Paper 2 Specimen QP A-level BIOLOGY (7402/2) Paper 2 Specimen 2014 Session Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the bottom of this page. • Answer all questions. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 91. ...

OCR GCSE (9–1) Biology A (Gateway Science) J247/04 Paper 4 QP Higher Tier2024

June 2017 QP (v1) Paper 1 AQA Biology AS-level. 0 1 Figure 1 shows part of a DNA molecule 0 1 . 1 How many nucleotides are shown in Figure 1? [1 mark] 0 1 . 2 Name the type of bond labelled X in Figure 1 0 1 . 3 The enzymes DNA helicase and DNA polymerase are involved in DNA replication. Describe the function of each of these enzymes. [2 marks] DNA helicase DNA polymerase 0 1 . 4 Adenosine triphosphate (ATP) is a nucleotide derivative. Contrast the structures of ATP and a nucleoti...

AQA Biology A-Level Paper 2 Specimen QP A-level BIOLOGY (7402/2) Paper 2 Specimen 2014 Session Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the bottom of this page. • Answer all questions. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 91. ...

AQA A LEVDefine diffusion. The net movement of molecules or ions from an area of higher concentration to an area of lower concentration until evenly distributed.Define osmosis.The movement of water from a region of higher water potential to a region of lower water potential across a partially permeable membrane. Define active transport. The movement of molecules from an area of lower concentration to an area of higher concentration using ATP and carrier proteins. State factors which ...