Ib sl biology - Study guides, Class notes & Summaries

2010 TZ1 2. (a) Glucose and galactose are examples of monosaccharides. State one other example of a monosaccharide. (b) The equation below shows the production of glucose and galactose from lactose. (i) There are several different types of carbohydrates. State which type of carbohydrate lactose is. (ii) State the type of chemical reaction that occurs when lactose is digested into glucose and galactose. (c) Lactase is widely used in food processing. Explain three reasons for converting lac...

This document is the complete summary required to pass the IB Biology Standard Level exams. It includes a detailed and comprehensive (yet concise) summary of Chapters 1-6 of the new textbook by Andrew Allott, as well as case studies you can mention during the exam, drawings and diagrams of relevant biological processes (such as mitosis / meiosis), tables, and class notes from a leading IB school. These notes have been used exclusively in order to achieve a 7 in the course, and have therefore ...

IB Biology SL — Topic 1 • Cell Biology with Complete Solutions Cell theory 1. All living things are composed of cells 2. Cells are the smallest unit of life 3. Cells only arise from pre-existing cells Striated muscle cell Exception to cell theory! → Muscle cells fuse to form fibres that may be very long (>300mm) → Consequently, they have multiple nuclei despite being surrounded by a single, continuous plasma membrane → Challenges the idea that cells always funct...

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 ...

IB Biology - Molecular Biology (Topic 2 SL) Rated A+ Carbon Element of life able to form four particularly stable covalent bonds Organic compound A compound that contains carbon and is found in living things Carbohydrates Class of molecules with the general formula - CH2O Glycogen Form in which glucose is stored in humans and fungi. Starch Form in which glucose is stored in plants. Proteins Building blocks of cells, enzymes and structural molecules and carry out functions w...

IB Biology Unit 1 (Cell Biology - SL) Latest Update Graded A+ Cell Theory all living things are made up of cells, all cells come from previous cells, the cell is the basic fundamental unit of life Functions of life that the cell must carry out -Nutrition: obtaining food, to provide energy and the materials needed for growth - Metabolism: chemical reactions inside the cell, including cell respiration to release energy -Growth: an irreversible increase in size -Response: the ability ...

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 cell produces large amount of viruses based on the genetic material in the cell • The cell bursts releasing copied viruses Experimental methodology: • Amino acid containing radioactive isotopes ...

IB Biology SL Latest Update Graded A+ Organic compound A compound that contains carbon found in living organisms, excluding carbonates and oxides Enzyme Biological catalysts made of protein that speed up the rate of a reaction Active site The region of an enzyme where the substrate binds Denaturation A structural change in the 3-D shape of a protein causing the loss of its chemical properties Cell respiration The controlled release of enrgy from organic compiunds in cells to for...

IB BIOLOGY IB QUESTIONS REVIEW – SL QUESTIONS AND ANSWERS WITH SOLUTIONS 2024