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Key topics in B2a
Descripción
Additional Science Mapa Mental sobre Key topics in B2a, creado por Ellie Sweatman el 24/02/2014.
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additional science
additional science
Mapa Mental por
Ellie Sweatman
, actualizado hace más de 1 año
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Creado por
Ellie Sweatman
hace más de 10 años
25
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Resumen del Recurso
Key topics in B2a
Animal cells
Nucleus
Contains chromosomes made of DNA
Controls activities of the cell
Cytoplasm
Jelly like substance containing chemicals
Most chemical reactions of the cell occur here
Cell membrane
Thin layer around the cell
Controls movement of substances into and out of the cell
Mitochondria
Rod shaped
Release energy from sugar during in aerobic desperation
Ribosomes
Ball shaped
Where proteins are made
Plant cells
Cell wall
Layer outside the membrane
Cellulose
Chloroplasts
Small discs found in cytoplasm
Contain green pigment chlorophyll
Chlorophyll traps light energy for photosynthesis
Vacuole
Fluid filled cavity
Cell sap
Helps support the cell
Cytoplasm
Nucleus
Cell membrane
Diffusion
partiicles move in and out of cells
concentration gradient
high to low concentration
factors that affect the rate of diffusion
increase of temperature= more energy= faster diffusion
shorter distance+ faster diffusion
concentration gradient
grater difference= faster diffusion
greater surface area = faster diffusion
Organs/tissues
Tissue
Group of similar cells organised together
Similar structure and function
muscular
gandular
epithenlial
organs
group of tissues working together
Enter text here
Photosynthesis
Leaf structure and adaptions
Ooleaves are designed for making food by photosynthesis
Waxy cuticle
Upper epidermis
Chloroplast
Paliside mesophyll layer
Spongy mesophyll layer
Stoma
Air space
Rate of photosynthesis
Quadrats/transects
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