Sign in, choose your GCSE subjects and see content that's tailored for you. Eukaryotic cells are larger than prokaryotic cells, and their DNA is contained in a nucleus. questions. The stroma contains enzymes for the light-independent stage of photosynthesis. A single membrane sac filled with fluid containing salts, sugars and amino acids. Cholesterol provides strength and reduces fluidity, proteins are for transport and the glycoproteins and glycolipids are for cell recognition and act as receptors. Contains a fluid centre called the matrix. These questions have been written by Bitesize consultants as suggestions to the types of questions that may appear in an exam paper. If you leave it blank or tick two or more boxes you will get zero marks. They can contain plasmids, which are rings of DNA containing genes linked to survival such as antibiotic resistance. Surname . Eukaryotic cells contain a range of organelles. Past papers: Use this link to access past papers that will help support your answers. AQA GCE Biology AS Unit 1 Cells Unit 1 Biology and Disease Cell structure & function Practice Exam Questions . 80s in size in eukaryotes. Therefore, I've decided compile together every single exam question on A-Level Biology that (I think) exists. Summary notes and past exam questions by topic for AQA Biology AS and A-Level Topic 2 - Cells A Level Biology Revision for AQA, OCR or Edexcel. Made up of a small and large subunit. Should be helpful in the run up to exams. The solution is placed into a centrifuge which spins at high speed to separate organelles depending on their density due to the centrifugal force. Structures viewed under an optical microscope can be measured using the formula: Magnification = size of image size of real object. Knowing the internal structure of cells has been possible due to a range of methods. AQA GCE Biology AS Unit 1 Cells . Centre number Candidate number . A beam of electrons has a very short wavelength and therefore EMs have a high resolution and small organelles can be visualised. HIV is surrounded by a further lipid envelope which has attachment proteins on the outside. Light microscopes have a poor resolution due to the long wavelength of light. It contains 71 pages of exam questions and mark schemes. Find A Level AQA Biology past papers split up by topic as well as A Level Biology practical questions and exam revision. Finally, they can have flagella which used for locomotion. Banner 2. Instead, the electrons are beamed onto the surface and the electrons are scattered in different ways depending on the contours. AS AQA A Level Biology Past Papers We have put together a comprehensive list of past papers for all of the AQA A-Level Biology exams. The DNA is found as a single circular molecule in the cytoplasm and is not associated with histone proteins. AQA GCE Biology AS Unit 1 Cells 3 . A Level Biology AQA Exam Questions By Topic. So if you’re revising Cell Division for OCR (A) A-Level Biology, you can find all of the Cell Division questions that have been ever asked by OCR in one single document - useful, no? 07. a) The main structures found in the human cell are: Cytoplasm. The proteins can then be transported through the RER. A Level Biology exam questions. suitable for measuring the length of a cell? Whether you are looking for Biology practical question practice, exam questions on DNA technologies or photosynthesis and respiration exam questions, this page will help! For this reason only non-living specimens can be examined. This is a very useful revision tool for students in year 10/11 who are studying the AQA Science A course or for those studying for the unit 1 exam for AQA biology. AQA A Level Biology past paper exam questions organised by topic with mark schemes. Test yourself with our 3 step revision - exam style questions, test and revision summary. box. These multiple choice questions will not start with command words like 'Describe...' or 'Explain...'. Find A Level Biology past papers, worksheets and revision materials on Maths Made Easy. Surrounded by a double membrane nuclear envelope with nuclear pores. Site of aerobic respiration and ATP production. I would suggest printing these out as A3 posters so all the text can be read. A Level Biology Past Papers We have put together a comprehensive list of past papers for all of the major UK exam boards A-Level Biology exams. This could range from abnormal body cells such as cancer, toxins produced by pathogens, pathogens and cells from other organisms of the same species. There are two main types of cells, eukaryotic and prokaryotic cells. Mitochondria with well-developed internal membranes, Sample exam questions - cell biology - AQA, Home Economics: Food and Nutrition (CCEA). These have enabled scientists to study the structure and function of all cell components further. As well as AQA of course, exam questions have been collated from exam boards including OCR, Edexcel and WJEC, where there are some overlapping practicals. Mark Scheme. The specimens do not need to be thin, as the electrons are not transmitting through. A-level BIOLOGY (7402/1) Paper 1 Please write clearly, in block capitals, to allow character computer recognition. . Our tips from experts and exam survivors will help you through. The cytoplasm does not contain any membrane-bound organelles and the ribosomes are smaller, 70s in size. • The maximum mark for th is paper is 91. Multiple choice questions are perhaps the easiest to complete - you simply put a cross in a box - however, the questions often have two answers that could, at first glance, be correct. Choose your answers to the questions and click 'Next' to see the next set of questions. Guidance. AS . Tags: A Level - AQA Exam Boards, A Level Biology - AQA, A Level Exams, Entrance Exams Revise with our smart online notecards and get the results that you deserve! Cells are labelled with proteins to allow recognition. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Pupils asked me to make them this style of revision aid. Question types will include multiple choice, structured, mathematical and practical questions. Prokaryotic cells do have cells walls, but they do not contain cellulose or chitin. Formed when the Golgi apparatus contains hydrolytic enzymes. We have worked hard to compile every past paper by topic and exam board! You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. Extremely think specimens are stained and placed in a vacuum. Use these to practice your exam question answers and highlight revision topics you need to work on. An antigen is typically a pro… This is to prevent damage to organelles and enzymes. Stem Cells & Controlling Protein Synthesis. Contains a fluid centre, the stroma. These two techniques are used to separate cell components. Start studying AQA Biology A2: Respiration Exam Questions. RER – site of protein synthesis and glycoprotein synthesis. Consists of polysaccharides, cellulose in plants and chitin in fungi. Instead they are made of a glycoprotein called murein. Information • The marks for questions are shown in brackets. or 'Why...?'. Provides structural strength to cells and prevents cells from bursting when water enters by osmosis. Past Papers. I've been looking for different exam questions for the new specification AQA Biology A-level course, and I can't seem to find anything. SER – create, store and transport lipids and carbohydrates. Finished products are transported in the Golgi vesicles. Created by teachers for Biology revision. Proteins and lipids and modified here. These multiple choice questions will not start with command words like 'Describe...' or 'Explain...'. AQA A-Level Biology Worksheets First Year Biology (AS) Second Year Biology (A2) Recommended Purchases If you’re confused with any question on our AQA A-Level Biology Worksheets, please make a thread about it on the forum and someone will answer your question! Also offering past papers and exam questions by topic for AQA, Edexcel and OCR. An image is created using an electromagnet to focus the beam of negatively charged electrons. During homogenation the cells must be kept in a solution that is cold to reduce enzyme activity to prevent the breakdown of cell components. Forename(s) Candidate signature AQA A-Level Biology Revision For each of the papers below, there are revision notes, summary sheets, questions from past exam papers separated by topic and other worksheets. To provide support to a cell, store amino acids and sugars and can contain pigments to attract pollinators. Containing chromosomes, consisting of protein-bound, linear DNA, and one or more nucleolus. Viruses are non-living and acellular. Most eukaryotic cells are complex multicellular organisms containing a range of specialised cells to perform a variety of functions. Which of these units is most suitable for measuring the length of a cell? A type of Golgi vesicle that releases lysozymes. The site of translation in protein synthesis. Glycolipids and glycoproteins in the surface.