Biology Ib Hl Paper - 2206 Words

N10/4/BIOLO/HPM/ENG/TZ0/XX 88106001 Biology HigHer level PaPer 1 Tuesday 2 November 2010 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES †¢ Do not open this examination paper until instructed to do so. †¢ Answer all the questions. †¢ For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8810-6001 17 pages  © International Baccalaureate Organization 2010 – 2 – 1. N10/4/BIOLO/HPM/ENG/TZ0/XX [Question and image removed for copyright reasons] 2. What is the sequence of stages during the cell cycle? A. B. C. D. G1 mitosis G1 G1 ï  ´ ï  ´ ï  ´ ï  ´ S G1 G2 G2 ï  ´ ï  ´ ï  ´ G2 G2 S ï  ´ mitosis ï  ´ cytokinesis S ï  ´ cytokinesis ï  ´ ï  ´ mitosis ï  ´ cytokinesis S ï  ´ mitosis ï  ´Ã¢â‚¬ ¦show more content†¦Varieties of bacteria resistant to antibiotics reproduce faster than non-resistant varieties. Bacteria showing resistance to antibiotics survive after antibiotics are used. 17. Which taxa do Zerynthia rumina and Zerynthia polyxena share? A. B. C. D. They share the same class but not the same family. They share the same species but not the same class. They share the same class but not the same genus. They share the same family but not the same species. 18. What features distinguish Platyhelminthes from Annelida? Platyhelminthes A. B. C. D. segmented body non-segmented body bilateral symmetry no bilateral symmetry Annelida non-segmented body segmented body no bilateral symmetry bilateral symmetry 8810-6001 Turn over – 10 – N10/4/BIOLO/HPM/ENG/TZ0/XX 19. What are the names of the organs labelled I and II in the diagram below? I II I A. B. C. D. pancreas small intestine gall bladder esophagus liver II large intestine pancreas stomach 20. Where in a cell are antigens found? A. B. C. D. In the nucleus In the cytoplasm In the plasma membrane On the surface of the Golgi apparatus 8810-6001 – 11 – N10/4/BIOLO/HPM/ENG/TZ0/XX 21. Which feature maintains a high concentration gradient of gases in the ventilation system? A. B. C. D. Thin-walled alveoli Thin-walled capillaries A moist lining of the alveoli Blood flowing in theShow MoreRelatedPractice Biology Ia: Diffusion2410 Words   |  10 PagesPractice Internal Assessment Report Christine Zhu St Pauls Grammar School 00296648 Biology HL Trial 1 amp; 2: 8/4/13 Trial 3 amp; 4: 10/4/13 Photo credits: Smarties by Andrew Dean, copyright Rebecca Douglas, retrieved 9/4/13 http://rebeccadouglas.photoshelter.com/image/I0000WDNZi_s2W4A Smarties Diffusion Experiment RESEARCH QUESTION How does changing the colour of smarties affect the extent of its passive diffusion? INTRODUCTION Passive diffusion, also known as simple diffusion, is used toRead MoreThe Effect of the Cold War on Stem Education3949 Words   |  16 PagesThe Effect of the Cold War Arm’s Race on STEM Occupations during the Cold War Ketib Oldiais Mr. Kelley IB Asian and European History HL 00450- A. Plan of Investigation 5 marks During the Cold War, the struggle for power between the communists of Soviet Russia and the pro-democracy politicians of the United States escalated in numerous proxy wars, acts of espionage, and potential nuclear warfare. Behind it all however, the Cold War was a breeding ground for competition in the fields of science,Read MoreHigh School Fruit Fly Lab3600 Words   |  15 PagesFruit Fly Lab Alycia Fletcher Biology IB HL March 25th 2010 Fruit Fly Lab Introduction Genes can either be sex-linked or autosomal. If a gene appears mostly in one sex chances are the gene is sex-linked and if it appears frequently in both sexes it is most likely autosomal. Using Drosophila melanogaster, also known as the fruit fly, we will determine whether the gene is sex-linked or autosomal. Drosophila melanogasters have a relatively short life span and are an excellent organism