Ib bio Study guides, Class notes & Summaries

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 ...

Contains answers to all LAQs from IB Biology HL past papers from May 2016 to November 2022 for topic 6: human physiology. All checked with respective markschemes and written out as marked bullet points.

What are the characteristics common to all forms of life? - correct answer reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy What are the levels of biological organization from simple to most complex? - correct answer Molecules, cell, tissue, organ, organism, population, community, ecosystem, biosphere What are the 4 most common types of biological molecules? - correct answer Proteins, nucleic acids, carbohydrates, and lipids ...

How do you calculate the magnification of a drawing/image? - correct answer Magnification=Image size(with ruler) / Actual size(according to scale bar) How do you calculate the actual size of a magnified specimen? - correct answer Actual size=Image size(with ruler) / magnification By which process do potassium ions move through potassium channels in axons? - correct answer Facilitated diffusion -at rest, the Na-K+ pump expels Na+ ions out of cell, while K+ are put within -when the n...

Outline the cell theory. - correct answer Living organisms are composed of cells. Cells are the smallest unit of life. Cells come from pre-existing cells. Discuss the evidence for the cell theory. - correct answer The nature of scientific theories could be introduced here: the accumulation of evidence that allows a hypothesis to become a theory; whether a theory should be abandoned when there is evidence that it does not offer a full explanation; and what evidence is needed for a theory...

QUESTIONS AND ANSWERS

IB Biology HL Questions And Answers 2023 Update A+ What are the characteristics common to all forms of life? - Answer-reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy What are the levels of biological organization from simple to most complex? - AnswerMolecules, cell, tissue, organ, organism, population, community, ecosystem, biosphere What are the 4 most common types of biological molecules? - Answer-Proteins, nucleic acids, carb...

Prokaryote or Eukaryote in paramecium? - correct answer Compartments in the cell indicates that it's a eukaryote Property of water which makes it suitable for living? - correct answer Thermal Watson and Crick discovery about DNA - correct answer DNA is double helix What occurs in meiosis but not in mitosis? - correct answer Homologous chromosomes pair up Variation within a population - correct answer Fertilization and mutation properties of stem cells - correct answer ...

What are the characteristics common to all forms of life? - correct answer reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy What are the levels of biological organization from simple to most complex? - correct answer Molecules, cell, tissue, organ, organism, population, community, ecosystem, biosphere What are the 4 most common types of biological molecules? - correct answer Proteins, nucleic acids, carbohydrates, and lipids Organ...

What are the three main parts of the cell theory? What are some possible exceptions? Practice Question - correct answer 1. All living things are composed of cells. 2. Cells are the smallest unit of life 3. Cells come from pre-existing cells Exceptions: Viruses: living or not? and amoeba What are the basic functions of life? What organisms carry out these functions? - correct answer Metabolism, response, homeostasis, growth, reproduction and nutrition. Unicellular organisms W...

Ecology The science of the relationships between organisms and their environments. Organism an individual living thing that uses energy, reproduces, responds, grows, and develops Species a group of similar organisms that can breed and produce fertile offspring Population group of individuals of the same species that live in the same area at same time Community a number of different populations living and interacting in the same area (all the living things in an area) Ecosystem a comm...