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
Classification and Biodiversity
Characteristic features of the five kingdoms
- 3 things to know
- Component 2
Overview
Recall questions on the defining features of Prokaryotae, Protoctista, Plantae, Fungi and Animalia, which are unicellular and which multicellular, the cell wall material in each, and how each obtains its nutrition.
What you need to know
Answer each one before you reveal it.
Your recallNot started
Key term
What size of ribosome is found in a member of the Prokaryotae?
Key term
How is the genetic material arranged in a prokaryotic cell?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Give three characteristic features of the kingdom Prokaryotae.
Model answer
The cells have no nucleus, they have no membrane-bound organelles, and their walls contain peptidoglycan.
- 2
What size of ribosome is found in a member of the Prokaryotae?
Model answer
70S ribosomes, which are smaller than the 80S ribosomes of eukaryotic cells.
- 3
How is the genetic material arranged in a prokaryotic cell?
Model answer
As a single circular loop of DNA lying free in the cytoplasm, often accompanied by small separate plasmids.
- 4
Give three characteristic features of the kingdom Protoctista.
Model answer
They are eukaryotic, they are unicellular or built from simple filaments or colonies, and they show no differentiation into true tissues.
- 5
Name two organisms placed in the kingdom Protoctista.
Model answer
Amoeba and Chlamydomonas.
- 6
How do members of the Protoctista obtain their nutrition?
Model answer
Some are autotrophic and photosynthesise, others are heterotrophic, and a few can do either.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Classification and Biodiversity, 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.
Or £46 a year, about £3.83 a month. Cancel anytime.