Cell structure

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  • Created by: Esme.B
  • Created on: 13-02-18 14:33
'Plasma (cell surface) membrane'?
1) found on surface of animal cells + inside cell wall of plant cells+prokaryotic cells. 2). Made of mainly lipids + proteins.
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Function of 'Plasma (cell surface) membrane'?
1) regulates movement of substances into + out of cell 2). Has receptor molecules on it, allowing it to respond to chemicals (i.e-hormones)
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'Cell Wall'?
1). Rigid structure that surrounds plant cells 2). Made mainly of carbohydrate cellulose
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Function of 'cell wall'?
Supports plant cells.
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1). Large organelle surrounded by nuclear envelope (double membrane) contains many pores 2). Nucleus contains 'chromatin' (made of DNA + Proteins) 3) structure called 'Nucleolus'
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Function of 'Nucleus'?
1) controls cell activity 2). DNA contains instructions to make proteins 3). Pores allow substances(i.e-RNA) to move between the nucleus + cytoplasm 3). Nucleolus makes ribosomes.
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1) round organelle surrounded by a membrane- no clear internal structure
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Function of 'Lysosome'?
1) contains digestive enzymes 2). Kept separate from cytoplasm by surrounding membrane 3). used to digest invading cells or break down worn out components of the cells.
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1) very small organelle 2). floats free in the cytoplasm or attached to RER 3). Made up of proteins + RNA 4) Not surrounded by membrane
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Function of 'Ribosomes'?
Site where proteins are made.
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'Rough Endoplasmic Reticulum (RER)'?
1) system of membranes enclosing a fluid-filled space. 2). Surface is covered with Ribosomes
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Function of 'Rough Endoplasmic Reticulum (RER)'?
1) Folds + processes proteins that have been made at the ribosomes
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'Smooth Endoplasmic Reticulum (SER)'?
Similar to RER but no Ribosomes
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Function of 'Smooth Endoplasmic Reticulum (SER)'?
Synthesises + Processes lipids
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Small fluid-filled sac in the cytoplasm, surrounded by a membrane
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Function of 'Vesicle'?
1) Transports substances in + out of the cell (via plasma membrane) + between organelles 2). some formed by Golgi apparatus or the endoplasmic reticulum + others formed at cell surface.
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'Golgi Apparatus'?
1). Group of fluid-filled membrane-bound sacs 2). Vesicles are often seen at the edges of the sacs.
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Function of 'Golgi Apparatus'?
1). processes + packages new lipids + proteins 2). Makes lysosomes
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1) Oval-shaped 2). Double membrane-inner folded to form 'Cristae' 3). Inside is the matrix- containing enzymes involved in respiration
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Function of 'Mitochondria'?
1) site of aerobic respiration -where ATP is produced 2). Found in large numbers in cells, very active + require a lot of energy.
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1) small, flattened structure found in plant cells.2)surrounded by a double membrane-membranes inside='thylakoid membranes' 3).'thylakoid membranes' stacked up to form Grana4) Grana linked together by lamellae-thin, flat pieces of thylakoid membrane.
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Function of 'Chlororplast'?
1) site where photosynthesis takes place 2) photosynthesis takes part in the grans + other parts in the storma
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1). Small hollow cylinder made of microtubules (tiny protein cylinders) 2). found in animal cells, but only some plant cells
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Function of 'Centriole'?
Involved with the separation of chromosomes during cell division
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1). Small, hair-like structures found on surface membrane of some animal cells 2). Cross-section: they have an outer membrane + ring of nine pairs of protein microtubules inside, with two microtubules in the middle.
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Function of 'Cilia'?
1) Microtubules allow cilia to move 2). Movement is used by the cell to move substance along the cell surface.
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Flagella on eukaryotic
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Card 2


Function of 'Plasma (cell surface) membrane'?


1) regulates movement of substances into + out of cell 2). Has receptor molecules on it, allowing it to respond to chemicals (i.e-hormones)

Card 3


'Cell Wall'?


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Card 4


Function of 'cell wall'?


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Card 5




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