IB SL BIOLOGY TOPIC 1 UPTO 9 SUMMARISED STUDY GUIDES 2023 UPDATED

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 Io...

IB BIOLOGY TOPIC 4 ECOLOGY COMPLETE STUDY GUIDE 2023 Topic 4.1: Ecology – Species, communities and ecosystem The continued survival of living organisms including humans depends on sustainable communities. • Understanding: Species are groups of organisms that can potentially interbreed to p...

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,...

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 whic...

Hershey & Chase experiment Experiment target: T2 Bacteriophage (a kind of virus, containing DNA and a protein coat) & E.Coli bacteria How does virus work? • Virus injects their genetic material into cell • Non-genetic part of the virus (protein coat) remains outside the cell • Infected c...

Water properties: • Cohesion: like molecules attract to each other • Water is a polar molecule that forms a hydrogen bond with other water molecules. • The negatively charged oxygen atom of one water molecule forms a hydrogen bond with a positively • charged hydrogen atom of another wate...