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Finding the most difficult questions in the database based on the percentage of students who got it correct. A low percentage indicates the question is quite difficult. The questions are presented in order starting with the toughest. Some of them have come from the examiner comment. Note this only works for some questions since not all questions have ever been answered or mentioned in examiner comments. Some topic/keyword combinations will therefore yield zero results.

Finding the least difficult questions in the database based on the percentage of students who got it correct. A high percentage indicates the question is quite easy. The questions are presented in order starting with the easiest. Some of these have come from the examiner comment. Note this only works for some questions since not all questions have ever been answered or mentioned in examiner comments. Some topic/keyword combinations will therefore yield zero results.

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Keyword:	KEYWORD - absorption of digested foods active transport antibiotic affect on mitochondria apoplast pathway arteries veins capillaries atp blood bond types breathing broken carbohydrates, lipids and proteins cell division cell functions cell plate formation cell respiration cell respiration and photosynthesis cell structure cell theory cells cellulose chemical elements and water chromosomes, genes, alleles and mutations cisternae classification communities and ecosystems community ecology conservation of biodiversity defence against infectious disease development plants and the environment diameter of cells dicotyledonous leaf diffusion digestion dihybrid crosses and gene linkage disaccharides diversity of microbes DNA growth dna replication dna structure ecology and evolution ecosystems and biomes effect of temp on activity electron microscope endoplasmic reticulum energy exercise and coordination energy in human diets enzyme denatured enzyme manufacture enzymes error bars eukaryotic cells evolution exercise and respiration eyepiece graticule fatty acids fitness and training fluid mosaic model fluidity food tests found in mitochondria and prokaryotic cells functions of the liver further studies of behaviour gas exchange genetic engineering and biotechnology genetics glycogen goblet cell haemoglobin haemoglobin dissociation curve haploid hormonal control hormones human evolution human health and physiology human nutrition and health hydrogen bonds hydrolysis hydrolysis and condensation identify impacts of humans on ecosystems infections injuries innate and learned behaviour interphase interpretation of graph leaf features lifestyle transport genes and health light microscope lipids magnification mathematical requirements mean measurement meiosis membranes metabolism of microbes metaphase microbes and biotechnology microbes and disease microbes and food production microbes and the environment microbiology microscope visibility mitochondria mitochondria & chloroplast mitosis monosaccharide muscles and movement mutations nerves, hormones and homeostasis neurotransmitters and synapses nitrogenous bases non-competitive inhibitor nucleic acids nucleic acids and proteins nucleoli nucleotide nucleotide bases option a option b option c option d option e option f option g option h options sl and hl organelles origin of life on earth parallax errors pathogens responsible for diseases peptide perception of stimuli phloem phospholipid molecule photosynthesis phylogeny and systematics plant and animal cells plant cells plant science plant structure and growth plant tissue plasmids ploem polygenic inheritance polymer polysaccharides population ecology populations prefix powers of ten prokaryotes prokaryotic cells protein protein structure protein synthesis proteins red blood cell red blood cell count reducing sugars reproduction reproduction in angiospermophytes resolution ribosomes semi-conservative DNA replication size of ribosome size of ribosome in chloroplasts special issues in human nutrition species and speciation stage micrometer scale standard deviation starch stem cells stimulus and response surface cell membrane symptoms the chemistry of life the greenhouse effect the hardy-weinberg principle the heart the human brain the kidney the natural environment and species survival the transport system theoretical genetics tissues training and the cardiovascular system training and the pulmonary system transcription transcription and translation translation translocation transmission from parent to child transpiration transport in angiospermophytes triglyceride type of cell units virus water water movement water potential in phloem xerophytic plants xylem xylem and phloem	this is topic box
Topic:	TOPIC-absorption of digested foodsanalysis, conclusions and evaluationanimal transportbiological moleculesbloodbreathingbrokencarbohydrates, lipids and proteinscellschemical elements and waterchromosomes, genes, alleles and mutationscirculatory systemclassificationcommunities and ecosystemscommunity ecologyconservation of biodiversitydevelopment plants and the environmentdigestiondihybrid crosses and gene linkagediseasesdiversity of microbesdnaduplicateecology and evolutionecosystems and biomesenergy exercise and coordinationenergy in human dietsenzymesevolutionexercise and respirationexperimental proceduresfitness and trainingfunctions of the liverfurther studies of behaviourgas exchangegenetic controlgenetic engineering and biotechnologygeneticshormonal controlhormoneshuman evolutionhuman health and physiologyhuman nutrition and health hydrolysis and condensationimmunityimpacts of humans on ecosystemsinfectionsinjuriesinnate and learned behaviourlifestyle transport genes and healthmathematical requirementsmeiosismembrane transportationmembranesmetabolism of microbesmicrobes and biotechnologymicrobes and diseasemicrobes and food productionmicrobes and the environmentmicrobiologymicroscopymitotic cell cyclemuscles and movementnerves, hormones and homeostasisneurotransmitters and synapsesnucleic acids and proteinsoption aoption boption coption doption eoption foption goption hoptions sl and hlorigin of life on earthperception of stimuliphotosynthesisphylogeny and systematicsplant cellsplant scienceplant structure and growthplant transportpolygenic inheritancepopulation ecologypopulationsprokaryotic cellsproteinsproteins sythesisreproductionreproduction in angiospermophytesspecial issues in human nutritionspecies and speciationstimulus and responsethe chemistry of lifethe greenhouse effectthe hardy-weinberg principlethe human brainthe kidneythe natural environment and species survivalthe transport systemtheoretical geneticstraining and the cardiovascular systemtraining and the pulmonary systemtranscriptiontranscription and translationtranslationtransporttransport in angiospermophytesviruses	topic box
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