cell structure and membranes

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  • Created by: Jaderose
  • Created on: 16-05-14 10:02
what are the two different types of cell
prokaryotic and eukaryotic
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what prokaryotic
singles cell organisms such as bacteria
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whats eukaryotic
complex include many include animal and plant cells
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decribe a plasma membrane and its function
found on animal cells just inside the cell wall of plant cells and prokaryotic cells made of lipids and protience, regulates movement of substances into and out of the cell receptor molecules on it which respond to hormones
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dicribe microvilli and its function
folds in the plasma membrane, found on cells involved in absorption eg epithelial cell in the small intestine they increase surface area
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describe microvilli and its function
large organelle surrounded by nuclear envelope (double membrane) contains chromatin made from protiens and dna pores allow substances like RNA to move between the nucleus and cytoplasm. the nucleolus make ribosomes
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describe lysosomes and their function
round surrounded by a membrane no clear internal structure contains digestive enzymes kept seperate from cytoplasm digest invading cells or break down worn out components of the cell
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describe a ribosome and its function
a very small organelle floats free in cytoplasm or it attached to rough endoplasmic reticulum where proteins are made
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describe the endoplasmic reticulum
two types sooth and rough smooth membranes with fluid rough is the same but covered in ribosomes. smooth synthesis and processes lipids. rough folds and processes proteins that have been made by the ribosomes
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describe the the golgi apparatus and its function
a group of fluid filled flattened sacs processes and packages new lipids and proteins which are transported else where by vesicles. also makes lysosomes
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describe a mitochondria and its function
oval shaped double membrane inner folded to form cristae inside is the matrix which contains enzymes involved in respiration. site of aerobic respiration which produces ATP energy source very active and require a lot of energy
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what prokaryotic


singles cell organisms such as bacteria

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whats eukaryotic


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decribe a plasma membrane and its function


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dicribe microvilli and its function


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