Biology sl Study guides, Class notes & Summaries

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 ...

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...

This Biology IA looks researches "Pupillary light reflex under 5 levels of light intensity exposure". It has scored full marks in 2021 year's IB session

What is the cell theory? 1. cells are the basic unit of life 2. All living things are made up of cells 3. all cells come from pre--existing cells. What is the difference between the structure of all prokaryotes and all eukaryotes? prokaryotes has a nuclei and eukaryotes has nuclear envelope A cell has cytoplasm, a cell wall, naked DNA and ribosomes. Based on this information, what type of cell could this be? A bacterium Which pair of features is correct for both a human l...

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...

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

Revision notes for IB Biology exams on Chapter 2, Molecular Biology. Color coded, with drawings, diagrams and straightforward explanations. 2.1 Molecules to metabolism 2.2 Water 2.3 Carbohydrates and Lipids 2.4 Proteins 2.5 Enzymes 2.6 DNA and RNA structure 2.7 DNA replication, transcription, translation 2.8 Cell respiration 2.9 Photosynthesis

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 ...