Ib sl biology Study guides, Class notes & Summaries

IB biology past essay questions HL and SL all units and mark scheme 2023 (A+) Outline what is meant by the trophic level of an organism with three examples from one named habitat. (4 max) - Answer-feeding level for an organism in a food chain naming of habitat (1 mark) naming three trophic levels correctly (1 mark) three examples forming a food chain from the named habitat (1 mark) 2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms obtain energy. (6 ma...

IB Biology - Unit 4 - Ecology SL/HL IB biology 11 SL Ecology topic. 2023 (A+) Species - Answer-A group of organisms that can interbreed and produce fertile offspring. Habitat - Answer-The environment in which a species normally lives or the location of a living organism. Population - Answer-A group of organisms of the same species who live in the same area at the same time. Two populations in the same species that are separated from each other may develop differences in character, b...

The Documents provide a good resource for quick revision and will help with IB Biology HL or SL

The document goes in great detail about the ib biology SL and HL topics; Water, Origin of cells, cell structure, virsues, carbohydrates and lipids, organelles and compartementalization, diversity of organisms, membranes, cell specialization, stem cells etc. It's almost 200 pages of the topics descriptions, diagrams, drawings, explanations, resources and videos. The information contains both the old syllabus and the new 2025 ib biology syllabus. The black notes are class notes, while the red not...

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 form A...

IB Bio SL 2, covers: Cell Respiration; Photosynthesis; Species, Communities, and Ecosystems; Energy Flow; Carbon Cycling; Evidence for Evolution; Natural Selection; Classification of Biodiversity; Cladistics; Digestion; The Blood System; Gas Exchange; Nutrition; The Heart

Organic compound - correct answer A compound that contains carbon found in living organisms, excluding carbonates and oxides Enzyme - correct answer Biological catalysts made of protein that speed up the rate of a reaction Active site - correct answer The region of an enzyme where the substrate binds Denaturation - correct answer A structural change in the 3-D shape of a protein causing the loss of its chemical properties Cell respiration - correct answer The controlled release of en...

Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level BIOLOGY Paper 2 Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill within the boxes at the top based on this page. • Answer all questions. • You must answer the questions within the ...

This document explains in proteins in great detail, which may be simple but is a very complicated concept. The document includes class notes in black and syllabus notes in red. There are also links to past papers and practice questions. The SL and HL topics are both there. I recommend reading over the paper before an exam for revising.