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Additional Biology
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- 1Topic 1The Components of Life
- 2Components + function of organelles in both animal and plant cellCell membrane: allows the diffusion of certain molecules (glucose, oxygen)
Cytoplasm: contains tiny organelles which carry out life processes
Mitochondria: in cytoplasm responsible for respiration
Nucleus: contains DNA and controls cell activity - 3Components + function of organelles in only plant cellCell wall: made of cellulose, helps keep the plant in shape
Large Vacuole: filled with cell sap to help keep cell rigid
Chloroplasts: contains chlorophyll, absorbs light for photosynthesis - 4Light Microscopesx1500 magnification
uses visible light - 5Electron Microscopesx2,000,000 magnification
uses electron beams - 6Bacterium cellCell wall: not made of cellulose, help keep shape but more flexible
Cell membrane: control movement of substances
Chromosomal DNA: giant loop of DNA
Plasmid DNA: extra loops of genetic information
Flagellum: helps swimming - 7Length of an objectLength of magnified object/
magnification - 8What are DNA, genes and chromosomes?DNA: carries genetic information
Genes: section of DNA that codes for a specific protein
Chromosomes: made up of a string of genes - 9Describe the structure of DNA> Double stranded helix structure
> Linked at regular intervals with complementary base pairs
> Guanine and Cytosine
> Adenine and Thymine
> Joint together with weak hydrogen bonds
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- Descripción
- Ks3 Science Fichas sobre Additional Biology, creado por zaroon_riaz el 04/05/2013.
- Creado por
- zaroon_riaz · may 2013
- Actualizado
- 11 ago 2016
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