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Title: biology ib notes
Description: notes are in a form of shortchanged point that summaries all the topic and sub topic for biology Ib
Description: notes are in a form of shortchanged point that summaries all the topic and sub topic for biology Ib
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Interior of the cell filled entirely filled with cytoplasm, it is one interrupted chamber
Simple structure, but complex substances
Only organelles are 70s ribosomes for energy production
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Cytoplasm contains one circular molecule of DNA
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• Enzymes and substrates for a particular process are more concentrated than if they were spread
through the cytoplasm
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• Conditions such as pH can be maintained at an ideal level for a particular process
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Organelles
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Nucleus:
Nuclear double membrane with nuclear pores
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Synthesise proteins, releasing them to work in the cytoplasm
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Chloroplast:
Double membrane
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They produce glucose and a wide variety of organic products by photosynthesis
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Vacuoles and vesicles:
Single membrane with fluid inside
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Vesicles are very small vacuoles used to transport materials inside the cell
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Centrioles structure of two groups of 9 triple microtubules
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Cilia and flagella:
Whip-like structures projecting from cell surface
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Used for locomotion
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Title: biology ib notes
Description: notes are in a form of shortchanged point that summaries all the topic and sub topic for biology Ib
Description: notes are in a form of shortchanged point that summaries all the topic and sub topic for biology Ib