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Related Flashcards
Cards In This Set
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What type of organisms are made up of prokaryotic cells?
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Bacteria
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Why type of organisms are made up of eukaryotic cells?
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Everything but bacteria
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Where does ATP take place in prokaryotes?
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In invaginations of the cell membrane called mesosomes.
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What is a membrane feature of prokaryotes?
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They have only the cell surface membrane and therefore do not contain membrane bound organelles such as mitochondria and chloroplast
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What can be found in a prokaryotic cell which is not found in a eukaryotic cell?
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Plasmids - very small loops of DNAand a nucleoid - DNA NOT surrounded by a membrane
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What is the cell wall of a prokaryote made of?And what is the average size of a prokaryote?
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Peptidoglycan1-5um
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What is the cell membrane of a prokaryote made of?
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Phospholipid Bilayer.
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What is the size of a eukaryote nucleus?
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10-20nm
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Name the shell of the nucleus and its function
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Nucleur envelope, to seperate DNA from cell content.
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What does the outer membrane of the nuclear envelope join with?
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Rough Endoplasmic Reticulum
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What does the nucleolus contain?
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Chromatin, dark staining area of nucleus.DNA coding for rRNA (ribosomal RNA)
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Two features and one function of ribosome
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Made of rRNA and protein and attached to Rough ER or found free.Protein synthesis
PA - NO LM |
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Two features and one function of Rough ER
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Consists of flattened membrane bound sacs called cisternae and studded with ribosome.Transports proteins made from attached ribosome - secreted from cell.
PA |
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Two features and one function of Smooth ER
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Consists of flattened membrane bound sacs called cisternae and have no ribosomes.Synthesis of lipids and steroid hormones.
PA |
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Describe the stages of function of the Golgi Body
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Proteins + Lipids move through Golgi body via vesicles budding off one compartment and fusing with one below.
RER -> Cis-Golgi network (returns any proteins wrongly sent to Golgi) -> Stack of cisternae (processes proteins and lipids and directs to destination [into lysosomes]) -> Trans-Golgi (sorts proteins and lipds and directs to destination) -> vesicles Stack of curved cisternae + Surrounded by many vesicles Modification of proteins PA |
