Edexcel igcse biology - Study guides, Class notes & Summaries

Active Transport - When a substance moves against/up a concentration gradient, from a region where they are of lower concentration to a region where they are of higher concentration. Adaption - Any characteristic of an organism that improves its chances of surviving in its environment. Aerobic respiration - Respiration with oxygen. Anaerobic respiration - Respiration without oxygen. It releases less energy than aerobic respiration. Alleles - Different forms of a gene which occupy the...

iGCSE Biology Pearson Edexcel Topic 2 Structure and Function of Living Organisms Complete Notes

Ace your IGCSE Pearson Edexcel Biology exams with these summary notes! This complete learning package covers the entire syllabus in an easy-to-understand format, ensuring you're well-equipped to tackle your exams with confidence. What's Included: Detailed Notes: Comprehensive coverage of all key topics as per the latest IGCSE Pearson Edexcel Biology syllabus, organized for easy review. Syllabus Statements: Streamlined notes that hit all the syllabus statements, saving you time and eff...

Pathogens - Ans (an organism that) causes disease Describe how a non-resistant Staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin (3) - Ans1. mutation; 2. (involves) gene / DNA / allele / genetic material 3. random / chance / rare/spontaneous Explain how a vaccination will protect a human from having an infection. - Ans1. antigen OR dead/weakened / attenuated/inactive pathogen bacterium/virus; 2. memory cells/memory lymphocytes; 3. antibody; 4. ...

iGCSE Biology Pearson Edexcel Topic 5 Biological Resources (excluding genetic modification) Complete Notes

Fully inclusive notes of the igcse Biology edexcel syllabus. Includes questions and mark schemes from prepares up to January 2022. Guaranteed 9 :)

iGCSE Biology Pearson Edexcel Topic 4 Ecology and the Environment Complete Notes

Pearson Edexcel GCSE/iGCSE Triple Science Biology Notes covering every specification point.

IGCSE Edexcel Biology – Reproduction question and answer| graded A+ Asexual reproduction Process of reproduction that forms genetically identical offspring from 1 parent Sexual reproduction Process of reproduction that forms non identical offspring from 2 parents Features of asexual reproduction Cells divide by mitosis No gamete fusion Offspring are clones Only 1 parent Features of sexual reproduction Gametes formed by meiosis Male and female gametes fuse together...