Ib sl biology - Study guides, Class notes & Summaries

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...

Chapter 1-10 detailed summarized notes for IB Biology Final exams

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 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 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...

Enzyme - AnsGlobular proteins that act as catalysts of chemical reactions Active Site - AnsRegion on the surface of an enzyme to which substrates bind and which catalyzes a chemical reaction involving substrates Enzyme-substrate specificity - AnsThe active sites of enzymes are specific to their substrates because it has a very specific shape, which means enzymes can catalyze only certain reactions as only a small number of substrates fit in the active site Effect of temperature on enzym...

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...

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...

IB Biology diagrams SL&HL (received 6 HL biology)