Ib Biology 2.3 Eukaryotic Cells

Front 1

Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell

Back 1

Front 2

function of Cell Membrane

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Semi-permeable barrier that controls the entry and exit of substances

Front 3

function of Nucleus

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Contains hereditary material (DNA) and thus controls cell activities (via transcription) and mitosis (via DNA replication)

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function of Nucleolus

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Site of the production and assembly of ribosome components

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function of Ribosome

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Complexes of RNA and protein that are responsible for polypeptide synthesis (eukaryotic ribosomes are larger than prokaryotes - 80S)

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function of Mitochondria

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Site of aerobic respiration, which produces large quantities of chemical energy (ATP) from organic compounds

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function of Golgi Apparatus

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An assembly of vesicles and folded membranes involved in the sorting, storing and modification of secretory products

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function of Lysosome

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Site of hydrolysis / digestion / breakdown of macromolecules

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function of Peroxisome

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Catalyses breakdwon of toxic substances like hydrogen peroxide and other metabolites

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function of Centrioles

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Microtubule-organising centres involved in cell division (mitosis / meiosis and cytokinesis)

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function of Endoplasmic Reticulum

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A system of membranes involved in the transport of materials between organelles

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Function of Rough ER

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Studded with ribosomes and involved in the synthesis and transport of proteins destined for secretion

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function of Smooth ER

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Involved in the synthesis and transport of lipids and steroids, as well as metabolism of carbohydrates

Front 14

Identify the structures of a eukaryote in electron micrographs of a liver cell

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Front 15

Compare prokaryote and eukaryote cells

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Similarities:

* Both have a cell membrane
* Both contain ribosomes
* Both have DNA and cytoplasm

Front 16

Draw and label a plant cell

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Front 17

State three differences between plant and animal cells

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