Organelles Biology I. Plant Cell Cellular boundaries Cell membrane: thin flexible barrier around cells Cell Wall: An inflexible barrier protects the.

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Presentation transcript:

Organelles Biology I

Plant Cell

Cellular boundaries Cell membrane: thin flexible barrier around cells Cell Wall: An inflexible barrier protects the cell and gives support found in Bacteria Fungi Plants Cytoplasm: clear gelatinous fluid inside a cell

Nucleus Controls most of cell processes contains DNA Contains material for making proteins Chromatin- DNA bound to proteins When divides forms chromosomes Contain genetic info

Nucleus Nucleolus: within the nucleus makes ribosomes Nuclear envelope- double membrane around nucleus Filled with pores allows genetic material to pass through

Animal Cells

Cytoskeleton provide support for the cell Made up of protein Microtubules- provide shape tracks for organelle movement Help separate chromosomes Microfillament Long thin fibers function to support cell

Support and Locomotion Cilia: short hairlike projections move in a wavelike motion Flagella: long projections move in a whip like motion

Paramecium Cilia

Euglena- Flagellum

Assembly, Transport and Storage Endoplasmic reticulum: Parts of cell membrane are made proteins are modified Ribosomes proteins made

ER not for doctors anymore Rough ER- proteins are modified here (synthesis) Ribosomes dot surface of Rough ER Smooth ER- Enzymes perform specialized tasks

Golgi Golgi Apparatus: Sort and package proteins Send out proteins to particular destinations Mail room:)

Storage and deletion Vacuoles: temporary storage of materials plants have a big Vacuole Lysosomes- small organelles filled with enzymes Break down lipids, carbohydrates and proteins Break down organelles which are no longer useful

Energy Transfers Chloroplasts: capture light energy produce food to store for a later time Mitochandria: Transform energy for the cell. “Power house” of the cell Use energy from food

Plant Cells

Paramecium

Euglena

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