BiologyGCSE(B2)Questions QuestionAnswer 1DescribethestructureofDNAAdoublehelixwiththetwostrands linkedbyaseriesofpairedbases; ‘twistedladder’ 2Howdothebasespairup?AdeninewithThymine,andGuaninewith Cytosine 3Genescontainthecodeformaking what? Proteins 4Nameausefulproteinthatcanbe producedbytransferringthe...
Answers to questions in the chapters of IGCSE and GCSE Biology by D G Mackean, for the use of teachers and students
Self-Assessment Questions Section 1. Principles of biology 1 Cells and tissues - questions / answers 2 The chemicals of living cells - questions / answers 3 Energy from respiration - questions / answers 4 How substances get in and out of cells - questions / answers 5 Photosynthesis and ...
Cell division-AQA Transport in cells-AQA Sample exam questions-Cell biology-AQA Organisation组织 Animal organisation-gaseous exchange systems-AQA Animal organisation-digestion-AQA Animal organisation-transport systems-AQA Plant organisation-AQA Non-communicable diseases-AQA Sample exam questions-Organisation-AQA...
Cell biology细胞生物学 Cell structure-AQA Cell division-AQA Transport in cells-AQA Sample exam questions-Cell biology-AQA Organisation组织 Animal organisation-gaseous exchange systems-AQA Animal organisation-digestion-AQA Animal organisation-transport systems-AQA ...
Cellbiology细胞生物学 Cellstructure-AQA AQA,Celldivision。 Transportincells-AQA Samplexamquestions-Cellbiology-AQA 组织Organisation。 Animalorganisation-gaseousexchangesystems-AQA。 Animalorganisation-digestion-AQA。 Animalorganisation-transportsystems-AQA。 AQA,Plantorganisation。 Non-communicablediseases-AQA Sample...
Cell biology细胞生物学 Cell structure-AQA Cell division-AQA Transport in cells-AQA Sample exam questions-Cell biology-AQA Organisation组织 Animal organisation-gaseous exchange systems-AQA Animal organisation-digestion-AQA Animal organisation-transport systems-AQA ...
BIOLOGY 0610/11 Paper 1 Multiple Choice May/June 2013 45 minutes Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil.Do not use staples, paper clips, highlighters, glue or ...
Past Papers, Required Practicals, Biology Lessons, The nature and variety of living organisms, Structures and functions in living organisms, Reproduction and inheritance, Ecology and the environment, Use of biological resources, videos and experiments th
This video explores what is meant by a stem cell before comparing embryonic stem cells to adult stem cells and evaluating both. It then describes therapeutic cloning and discusses how plant meristems are a source of stem cells. Key Words differentiate, meristem, multipotent, stem cell, totipotent...