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Nik's IGCSE Biology: 2.87 understand the function of the eye in focusing near and distant objects, and in responding to changes in light intensity
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A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Monday, 6 February 2012. 287 understand the function of the eye in focusing near and distant objects, and in responding to changes in light intensity. When the lens shape is changed to adjust to varying distances of objects, this is known as accommodation. And is how we focus light. The ciliary muscles contract. The ciliary muscles relax. These co...
nikbiology.blogspot.com
Nik's IGCSE Biology: April 2011
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A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Thursday, 28 April 2011. Tuesday, 12 April 2011. Germinate (tube grows downward). Species specific, only same pollen can germinate. Pollen - - - pollen tube (style) - - Ovule. Pollen nucleus Ovule - - - - Zygote - - - Embryonic Plant. Outside ovule forms seed coat (TESTA). Cotyledons (along with Zygote) - food stores to support plant.
nikbiology.blogspot.com
Nik's IGCSE Biology: September 2011
http://nikbiology.blogspot.com/2011_09_01_archive.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Tuesday, 20 September 2011. 319 (a) and (b) Screen Capture. 318 (a) and (b) Screen Capture. Monday, 19 September 2011. Fertilisation = "fusion of male and female gamete to produce a zygote that undergoes cell division and develops into an embryo". 1 In both Adult male and Adult female:. Diploid (2n) / 2 = Haploid (n). 39b Female Reproductive System.
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Nik's IGCSE Biology: 5a Food Production
http://nikbiology.blogspot.com/2012/02/5a-food-production.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Sunday, 19 February 2012. Students will be assessed on their ability to:. 51 describe how glasshouses and polythene tunnels can be used to increase the yield of certain crops. Prevents frost from forming. Prevents low humidity levels (prevents water loss). Glasshouses allow both these factors to be controlled = highest yield. Monoculture = a field...
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Nik's IGCSE Biology: November 2011
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A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Saturday, 5 November 2011. Salts (Affects composition of tissue fluid = osmoregulation). Urea (Part of excretion of metabolic waste). Water (Affects composition of tissue fluid = osmoregulation). Varies upon the conditions which a person is operating (environment/circumstances). Flows through bloodstream - kidney. ADH targets collecting duct.
nikbiology.blogspot.com
Nik's IGCSE Biology: June 2011
http://nikbiology.blogspot.com/2011_06_01_archive.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Tuesday, 14 June 2011. Process of Dry/Wet Deposition and Locations. Dry Deposition: Sulphur dioxide bonds with transpired water molecules on SA of leaf, causing the leaves to 'burn'. Wet Deposition: Conventional Acid Rain cycle. In Europe (prevailing wind travels NE). Monday, 13 June 2011. 414 Enhanced Greenhouse Gases. Raised sea levels,. B) 50% ...
nikbiology.blogspot.com
Nik's IGCSE Biology: What was the purpose of cloning dolly the sheep?
http://nikbiology.blogspot.com/2012/03/what-was-purpose-of-cloning-dolly-sheep.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Monday, 12 March 2012. What was the purpose of cloning dolly the sheep? The purpose was not the act of cloning dolly itself, but rather the implications that came as a consequence of the knowledge that we could. Employ recombinant DNA technology in living organisms to create a clone. Subscribe to: Post Comments (Atom). 513, 5.14, 5.15.
nikbiology.blogspot.com
Nik's IGCSE Biology: 5.13, 5.14, 5.15
http://nikbiology.blogspot.com/2012/03/513-514-515.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Monday, 5 March 2012. 513, 5.14, 5.15. Bacteria: Plasmids are found in bacterial cells – ring of DNA. Virus: Protein shell (capsid) - Nucleic acid inside (DNA/RNA) ONLY THESE COMPONENTS. Human Chromosome - Length of DNA - Gene which represents the protein INSULIN which is a hormone that controls blood sugar levels. RC DNA - Vector - Host Cell.
nikbiology.blogspot.com
Nik's IGCSE Biology: February 2012
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A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Saturday, 25 February 2012. 511 understand that animals with desired characteristics can be developed by selective breeding. Breeding shifts the distribution curve towards the desired characteristic. Example: Cows milk yield. Cow A: 50 ml. Cow A: 100 ml. 510 understand that plants with desired characteristics can be developed by selective breeding.
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Nik's IGCSE Biology: March 2012
http://nikbiology.blogspot.com/2012_03_01_archive.html
A site set up to document my studies in IGCSE Biology; with notes on each objective covered that is necessary for the final IGCSE Examinations. Hope you enjoy! Monday, 12 March 2012. What was the purpose of cloning dolly the sheep? The purpose was not the act of cloning dolly itself, but rather the implications that came as a consequence of the knowledge that we could. Employ recombinant DNA technology in living organisms to create a clone. Monday, 5 March 2012. 513, 5.14, 5.15. RC DNA into bacteria.