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A-Level OCR Biology

A run through of OCR As and A2 Biology which will be built over the coming months as part of revision.

Alex Van Dijk

on 19 January 2011

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Transcript of A-Level OCR Biology

Cellular Control Cellular Control Transcription
and Translation Lac Operon Mutations Development
and Apoptosis F215: Control, Genomes
And Environment Biotechnology and
Gene Technologies Cloning Biotechnology Sequencing and Genomics Genetic
Engineering Ecosystems and Sustainability Energy Transfer Succession Decomposers Conservation Populations and
Competition Responses and Behaviour Plant Responses Animal Responses Animal Behaviour A2 Biology F214: Communication
and Homeostasis Excretion Respiration Photosynthesis Communication Nerves Hormones Liver Kidney Chloroplasts Light-Dependent
Stage Light-Independent
Stage Limiting factors ATP and
Co-Enzymes Glycolysis and
Link reaction Krebs Cycle Oxidative
phosphorylation Respiratory
Substrates Meiosis and Variation Meiosis Classical Genetics Variation Speciation Interphase Prophase I Metaphase I Anaphase I Telophase I Metaphase II Prophase II Anaphase II Telophase II Stages of Meiosis Cells spend 95% of the time in Interphase The cell is not dividing.
Chromatin is not condensed.
Protein synthesis etc still occurs Prophase I Chromatids condense.
Nuclear envelope disappears
Centriole splits and moves to the poles Meiosis and Variation Independent Assortment Crossing Over Fertilisation Mutation Chiasmata Prophase I New Allele Combinations Of Chromosomes Of Chromatids How Many Combinations? Chromosome Mutation DNA Mutations AS Biology F211: Cells, Exchange and Transport Cell Structure Cell Membranes Cell Division, Diversity
and Organisation Transport in Plants Exchange Surfaces
and Breathing Transport in Animals Microscopy
Cell Structure Organelle Function Prokaryote vs. Eukaryote Fluid Mosaic Model Cell Signalling Transport across
a membrane Mitosis Mitosis vs Meiosis Differentiation Tissue Organisation Anatomy of Lungs Cells of the
Respiratory System Breathing A-Level Biology Circulatory System Structure of
the Heart Cardiac Cycle Blood Dissociation Curves Xylem and Phloem Transpiration Movement of
Water Translocation F212: Molecules, Biodiversity,
Food and Health Biological Molecules Nucleic Acids Enzymes Diet and Food Production Health and Disease Classification, Biodiversity
and Conservation Water Carbohydrates Proteins Food Tests Sugars Amino Acids Nucleotides DNA RNA Enzyme Model Enzyme Activity Coenzymes and
Prosthetic Groups Poisons and Drugs Nutrition Coronary Heart
Disease Food Production Pathogens Case Studies Non-specific Responses
to Disease Specific Responses
to Disease Vaccination Biodiversity Smoking CHD Classification Variation Adaptation Natural Selection
and Evolution Conservation The Central Dogma Light Microscopy Electron Microscopy Magnification Resolution Actual Size = image size / magnification Animal Cell Plant Cell Cytoskeleton Actin: Microtubules Movement Vesicles and Vacuoles Cell Wall Membrane-bound
Organelles Nucleus Endoplasmic
Reticulum Golgi Apparatus Mitochondria Chloroplasts Lysosomes Non-membrane-bound
Organelles Centrioles Ribosomes Similarities between them,but what are the differences? Describe the components of the fluid mosaic model: Permeability Fluidity An example of
Cell Signalling Why do cells need to
communicate? Diffusion and
Osmosis Which substances can diffuse
through the membrane? Facilitated diffusion involves a number
of proteins in the membrane: Osmosis and an egg cell Active transport is used to
transport substances against a concentration gradient. It uses ATP to power this.
Give some examples: Endocytosis The movement of large molecules or large numbers of molecules across a membrane Structure of
the Chromosome Why do cells divide?
Can you name the
phases in this video? Stem Cells Where can we find stem cells
in the adult body? How are plants different
to animals? Specialised Cell Types How are these cells adapted
to their function? Erythrocyte Root Hair Cell Neutrophil Pallisade Cell Sperm Cell Neuron Define the following words
and explain the relationship between them. Cell Tissue Organ System Organism Transport vessels in plants Types of epithelial cells.
Where would you find each type? How do the tissues in a leaf work together to maximise photosynthesis? Exchange Surfaces What substances need to go in and out of organisms to ensure survival? What are some the key
features of a good exchange surface?
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