Ib biology topic 1 - Study guides, Class notes & Summaries

IB Biology - Topic 3 – Genetics Latest 2024 Graded A+ Define gene. A heritable factor that consists of a length of DNA (not an entire chromosome) and influences a specific characteristic Define allele. Various forms of a gene Define locus. The position a gene occupies on one type of chromosome Define genome. The whole genetic information of an organism How do alleles differ from one another? By a few differences in DNA base sequence What is the genome size (million base p...

summary for IB Biology topic 1 cell biology to prepare for the IB exams

IB Biology HL Topic 8 Latest Version Graded A+ Oxidation involves the loss of electrons from an element; frequently involves gaining oxygen or losing hydrogen Reduction involves a gain of electrons; frequently involves losing oxygen or gaining hydrogen Glycolysis first stage of cell respiration; in the cytoplasm, one hexose sugar is converted into 2 3-carbon atom compounds (pyruvate) with a net gain of 2 ATP and 2 NADH + H Phosphorylation 2 phosphate groups are added to a molec...

IB BIOLOGY TOPIC 1 CELL BIOLOGY QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE 2023 IB Biology Topic 1: Cell Biology 1. Cell theory: The theory that cells form the fundamental structural and functional units of all living organisms. 2. Differentiation: The expression of a particular gene(s) and not others in order for cell specialisation. 3. Emergent properties: The idea that the sum of an organism is more than the parts interacting and combining. Living things become more complex as they...

IB BIOLOGY TOPIC 2 MOLECULAR BIOLOGY COMPLETE STUDY GUIDE 2023 Topic 2.1 – Molecules to Metabolism x Atom: It is a single uncharged particle of an element. E.g. H, O, N, S, Na, Fe, etc. x Molecule: A group of two or more atoms held together by covalent bonds. E.g. H2O, N2, CO2, etc. x Ion: Ions are atoms or groups of atoms that are charged E.g. H+ , Na+ , OH- , etc. Metabolism ¾ Metabolism is the web of all the enzyme-catalysed reactions in a cell or organism. Metabolism is m...

IB BIOLOGY TOPIC 6 HUMAN PHYSIOLOGY COMPLETE STUDY GUIDE 2023 HKEXCEL LTD. 1 Topic 6.1 – Digestion and absorption The human digestive system  The parts of the human digestive system are as follows:  Mouth: Ingestion and chewing of food particles. Saliva is secreted in the mouth which contains the enzyme salivary amylase. This enzymes breaks down amylose (starch).  Esophagus: Swallowing the chewed food.  Stomach: Firstly, the stomach secretes pepsin which starts the dige...

IB BIOLOGY TOPIC 3 GENETICS COMPLETE STUDY GUIDE 2023. HKEXCEL LTD. 1 Topic 3.1 – Genes Genetics x It is the study of variation and inheritance. The basic unit of inheritance is a gene. Gene x A gene is defined as a heritable factor that controls a specific characteristic for an organism, or a section of DNA that codes for the formation of a polypeptide. x A gene occupies a specific position on a chromosome. x A typical animal or plant cell nucleus contains thousands of genes. The ...

Complete, clear and concise notes for Topic 1-6 of the IB Biology course by a 44 student (7 for biology), structured according to the syllabus requirements to ensure all necessary information is covered, and including all needed diagrams and possible long answers

The notes for the IB course of Biology - TOPIC 1 CELL BIOLOGY - by an IB student of M22 achieving 45 points (7 for Biology predicted and achieved). Notes are handwritten and organized by subchapter. All you need to achieve a 7 in IB Biology is contained within the note-set for this chapter. Contains only relevant information that gets asked in exams and topic tests - summarized from the Companion Course-books (Pearson and Oxford). Perfect for revision purposes and final IB exams.