york.ac.uk
Salters-Nuffield Advanced Biology - Education, The University of York
http://www.york.ac.uk/education/projects/snab
Raquo; University of York Science Education Group. Raquo; Curriculum projects. Raquo; Salters-Nuffield Advanced Biology. MA in Education (by Research). PhD in Applied Linguistics. Centre for Research in Language Learning and Use. Centre for Research on Education and Social Justice. Psychology in Education Research Centre. University of York Science Education Group. Read more about UYSEG. Salters Horners Advanced Physics. Context-led (SNAB) V concept-led. SNAB AS teaching schemes and forward planning.
genesandhealth.blogspot.com
Genes and Health: Structure of the Lungs
http://genesandhealth.blogspot.com/2007/10/structure-of-lungs.html
Structure of the Lungs. The structure of the lungs covers some basic GCSE revision. There is a GCSE review on the SNAB website for you to read through and a short test to see if you're up to date. We won't snoop at the test marks and use them against you. Promise. The main components of the respiratory system are involved in the movement of gases, either into or out of the lungs. GCSE Bite Size Respiration. GCSE Bite Size Respiratory System. Inside the human body. Inside the Human Body.
genesandhealth.blogspot.com
Genes and Health: Gene therapy
http://genesandhealth.blogspot.com/2007/10/gene-therapy.html
Gene therapy is a treatment type that means changing a defective gene that causes a disease. This can mean replacing the gene that doesn't work with a functioning gene, or even 'knocking out' the gene all together. There are two methods of delivering the new gene to the affected DNA. In CF this isn't especially effective, but it has cured a rare immunodeficiency disease. Gene therapy affects somatic. Cells only, it is not a germ line. Inside the Human Body.
genesandhealth.blogspot.com
Genes and Health: protein structure
http://genesandhealth.blogspot.com/2007/10/protein-structure.html
The job of a protein is completely determined by the structure of the protein, from the smallest to the largest part. There are several ordered layers to the structure. 1 The primary structure. The primary structure is the sequence of amino acids. Found in the polypeptide. Chain Amino acids are joined together by peptide bonds which are formed in a condensation reaction. There are three main components to an amino acid:. A Carboxyl group: COOH. B Amine group: NH2. C Residual group: R. Revision Worksheet ...
genesandhealth.blogspot.com
Genes and Health: Cell membranes
http://genesandhealth.blogspot.com/2007/10/cell-membranes.html
There are several components to the plasma membrane. The phospholipid has a hydrophillic head and a hydrophobic tail. The heads will point towards water while the tails will turn away. The membrane is a bilayer so two layers of phospholipids. These are usually channel proteins involved in transport that span across the membrane. Trans means across so Transmembrane - across membrane. These proteins are usually involved in transport. 3 Glycoproteins and Glycolipids. The fluid Mosaic Model.
genesandhealth.blogspot.com
Genes and Health: Translation
http://genesandhealth.blogspot.com/2007/10/translation.html
Translation is the process where the copied stretch of mRNA is translated into proteins. This occurs in ribosomes, either free floating in cells or bound to the endoplasmic reticulum. An enzyme called RNA polymerase catalyses the reaction. A tRNA triplet code lines up alongside the single stranded mRNA molecule. tRNA has an amino acid binding site attached, and the amino acid that binds is dependent on the codon of the tRNA molecule. Inside the Human Body.
genesandhealth.blogspot.com
Genes and Health: Monohybrid Inheritance
http://genesandhealth.blogspot.com/2007/10/monohybrid-inheritance.html
Cystic Fibrosis is affected by only one gene and because of this it is inherited by a process called monohybrid inheritance. This simply means that only one gene is involved. Cystic Fibrosis is a recessive condition, which means only if an individual is homozygous for for the disorder they will show it. If an individual is heterozygous and has the condition then they are a carrier of cystic fibrosis. Inside the Human Body.
genesandhealth.blogspot.com
Genes and Health: Gas Exchange in the lungs
http://genesandhealth.blogspot.com/2007/10/gas-exchange-in-lungs.html
Gas Exchange in the lungs. Gas exchange takes place in the lungs between the alveoli and the capillaries that surround them. Oxygen is breathed in and passed into the circulatory system. The blood containing oxygen is oxygenated. Carbon dioxide is passed from the blood into the lungs. Blood carrying carbon dioxide is deoxygenated. This process is essential for respiration. Respiration provides the energy vital for all functions in the body. If you look at the structure of the alveoli.
genesandhealth.blogspot.com
Genes and Health: Electrophoresis
http://genesandhealth.blogspot.com/2007/10/electrophoresis.html
Agarose Gel Electrophoresis is a technique used in genetic screening to determine whether a gene is present or not. First the DNA is cut using a restriction enzyme. These recognise specific sequences of DNA and make an incision if they find it. If the sequence isn't present, the enzyme will not cut. The electrophoresis chamber runs from negative to positive and because DNA has a slight negative charge it will be drawn to the positive end. University of Utah virtual lab. Inside the Human Body.
