Key term
Eduqas A-Level Biology A400QS
Biological Molecules
Cell Structure and Organisation
Cell Membranes and Transport
Enzymes
Nucleic Acids and Their Functions
Importance of ATP
Photosynthesis
Respiration
Microbiology
Population Size and Ecosystems
Topic overviewPopulation growth and its measurementThe population growth curve and carrying capacityDensity dependent and density independent factorsSampling abundance and distributionEcosystems, habitats and communitiesEnergy transfer and pyramids of biomassSuccessionDecomposition and the carbon cycleThe nitrogen cycle and human interventionEutrophication and the effects of drainage
Human Impact on the Environment
Classification and Biodiversity
Topic overviewThe need for classification and the taxonomic hierarchyThe three domain and five kingdom systemsCharacteristic features of the five kingdomsAssessing relatedness by physical features and biochemistryThe species concept and the binomial systemBiodiversity, adaptation and natural selectionMeasuring biodiversity in a habitatGenetic and molecular measures of biodiversity
Mitosis and Meiosis
Sexual Reproduction in Humans
Sexual Reproduction in Plants
Inheritance
Variation and Evolution
Application of Reproduction and Genetics
Topic overviewThe Human Genome Project, other sequenced genomes and genomics in healthcareScreening embryos, stem cells and the ethical issuesGenetic fingerprinting, PCR and electrophoresis in forensic workRecombinant DNA and the production of human insulinGenetically modified crops and gene therapy
Adaptations for Gas Exchange
Topic overviewSurface area to volume ratio and gas exchange in small organismsSpecialised respiratory surfaces and the need for ventilationGills and counter current flow in bony fishThe human breathing system and its histologyVentilation and gas exchange in humansThe insect tracheal systemThe angiosperm leaf, stomata and gas exchange
Adaptations for Transport
Topic overviewVascular systems compared across animal groupsThe mammalian heart and blood vesselsThe cardiac cycle and its controlBlood, haemoglobin and dissociation curvesThe Bohr effect, chloride shift and tissue fluidThe root and the uptake of waterThe endodermis and the entry to the xylemXylem, transpiration and cohesion-tensionThe potometer and xerophytes and hydrophytesPhloem and translocation
Adaptations for Nutrition
Homeostasis and the Kidney
The Nervous System
Immunology and Disease: Disease and Its TransmissionImmunology
Immunology and Disease: AntibioticsImmunology
Immunology and Disease: The Immune ResponseImmunology
Human Musculoskeletal Anatomy: Skeletal TissuesMusculoskeletal
Topic overviewCartilage and its three typesThe composition and functions of compact boneBone remodelling and the Haversian systemRickets, osteomalacia, osteoporosis and brittle bone diseaseThe structure of skeletal muscleThe sliding filament theoryFast and slow twitch fibres, and energy for contraction
Human Musculoskeletal Anatomy: Structure and Function of the SkeletonMusculoskeletal
Human Musculoskeletal Anatomy: JointsMusculoskeletal
Neurobiology and Behaviour: The BrainNeurobiology
Neurobiology and Behaviour: NeuroscienceNeurobiology
Mitosis and Meiosis
- 5 subtopics
- 15 things to know
- Component 2
What Mitosis and Meiosis covers
Mitosis and Meiosis is examined in Component 2, Continuity of Life. It covers the cell cycle and interphase, the stages of mitosis, cytokinesis and the significance of mitosis, the stages of meiosis and comparing mitosis with meiosis, and seeing them on prepared slides.
The 5 subtopics
Each one has its own page.
- The cell cycle and interphaseThree main phases of the cell cycle, three stages of interphase in order and term chromatid.Open →
- The stages of mitosisFour stages of mitosis in order, what happens to the chromosomes during prophase and what happens during metaphase.Open →
- Cytokinesis and the significance of mitosisHow cytokinesis occurs in an animal cell, how cytokinesis occurs in a plant cell and asexual reproduction.Open →
- The stages of meiosisHomologous pair of chromosomes, what happens during prophase I of meiosis and what crossing over achieves.Open →
- Comparing mitosis with meiosis, and seeing them on prepared slidesMain difference between the products of mitosis and of meiosis and how a root tip squash is prepared.Open →
What you need to know
Answer each one before you reveal it.
Your recallNot started
Key term
What roles does mitosis play in a body, and what is a tumour when its control fails?
Process
Name the four stages of mitosis in order.
Key term
What is a homologous pair of chromosomes?
Key term
State the main difference between the products of mitosis and of meiosis.
Key term
Name the three main phases of the cell cycle.
Key term
What happens to the nuclear envelope and the nucleolus during prophase?
Key term
Define cytokinesis.
Key term
Describe what happens during prophase I of meiosis.
Key term
Compare the chromosome number of the daughter cells produced by mitosis and by meiosis.
Process
Name the three stages of interphase in order.
Key term
Describe what happens during metaphase.
Key term
Describe how cytokinesis occurs in a plant cell.
Key term
What is a bivalent?
Key term
How many nuclear divisions does each of mitosis and meiosis involve?
Take Mitosis and Meiosis further
The same content, four other ways.
Questions from this topic
Each one with the model answer underneath.
- 1
Name the three main phases of the cell cycle.
Model answer
Interphase, nuclear division and cytokinesis.
- 2
Name the three stages of interphase in order.
Model answer
G₁, S and G₂.
- 3
What happens during the S phase of interphase?
Model answer
The DNA is replicated semi-conservatively, so that every chromosome comes to consist of two identical chromatids.
- 4
What happens during the G₁ phase of interphase?
Model answer
The cell grows, new organelles and proteins are made, and the enzymes needed for DNA replication are produced.
- 5
What happens during the G₂ phase, after the DNA has been replicated?
Model answer
The cell continues to grow, the replicated DNA is checked for errors, and the proteins needed for division such as tubulin are made.
- 6
Why is it wrong to call interphase a resting phase?
Model answer
The cell is at its most metabolically active during interphase, replicating DNA, synthesising protein and respiring rapidly.
What is inside Levo
Six ways to work the same material.
Mitosis and Meiosis revision questions
- What does Mitosis and Meiosis cover in Eduqas A-Level Biology?
- 5 subtopics: the cell cycle and interphase, the stages of mitosis, cytokinesis and the significance of mitosis, the stages of meiosis and comparing mitosis with meiosis, and seeing them on prepared slides. Each one has its own page with questions and model answers.
- How is Mitosis and Meiosis organised?
- By the Eduqas A400QS specification, subtopic by subtopic, so it matches the order you are taught it in.
Every question in Mitosis and Meiosis, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
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