Organelles in animal cells - description + function

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Description of Nucleus
Large organelle surrounded by a nuclear envelope (double membrane), contains many pores. Contains the DNA
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Function of the nucleus
controls the cell's activities (e.g. the transcription of DNA). Pores allows substances to move between the nucleus and the cytoplasm.
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Description of Lysosome
A round organelle surrounded by a membrane, no clear internal structure.
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Function of lysosome
contains digestive enzymes. Can be used to digest invading cells or to break down worn out components of the cell.
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Description of Ribosome
Very small organelle. Can either float in cytoplasm or is attached to the Rough ER.
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Function of Ribosome
the site where proteins are made.
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Description of Rough Endoplasmic Reticulum
A system of membranes enclosing a fluid-filled space. Surface is covered with ribosomes.
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Function of Rough ER
Folds and processes proteins that have been made at the ribosomes.
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Description of Smooth Endoplasmic Reticulum.
Similar to Rough ER - system of membranes enclosing a fluid-filled space. But it has NO ribsomes on it.
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Function of Smooth ER
Synthesis and processes lipids
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Description of Golgi Apparatus
A group of fluid filled membrane-bound, flattened sacs. Vesicles are often seen at the edges of the sacs.
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Function of Golgi Apparatus
Processes and packages new lipids and proteins. Also makes lysosomes.
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Description of Mitochondrion
Usually oval-shaped. Have a double membrane - the inner one is folded to form structures called cristae. Inside is the matrix, which contains enzymes involved in respiration.
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Function of Mitochondrion
The site of aerobic respiration, where ATP is produced. They are found in large numbers in the cells that are very active and require a lot of energy.
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Description of Centriole
Small, hollow cylinders made of micro-tubules (tiny protein cylinders). Found in animal cells, but only some plant cells.
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Function of Centriole
Involved with the separation of chromosomes during cell division. - form the mitotic spindle
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Other cards in this set

Card 2

Front

Function of the nucleus

Back

controls the cell's activities (e.g. the transcription of DNA). Pores allows substances to move between the nucleus and the cytoplasm.

Card 3

Front

Description of Lysosome

Back

Preview of the front of card 3

Card 4

Front

Function of lysosome

Back

Preview of the front of card 4

Card 5

Front

Description of Ribosome

Back

Preview of the front of card 5
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