Structure of Epithelial cells

Main structures of cell

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  • Created by: kamran
  • Created on: 20-10-14 11:08
Nucleus
Controls activities of the cell, and contains DNA material.
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Mitochondria
Mitochondria are the site of respriation, they produce ATP, which is used in respiration, it is made up of a double membrane, cristae (provide a large surface area), and matrix, which allow mitochondria to produce their own proteins.
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Endoplasmic Reticulum
Rough ER: Provides a large surface area for synthesis of proteins and provides a pathway for the transport of materials. Smooth ER: Synthesises and stores lipids and synthesis and stores carbohydrates (hence the absence of ribosomes on the Smooth ER)
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Golgi apparatus
The functions of the golgi are to add carbohydrate to proteins to form glycoproteins, produce secretory enzymes e.g. pancreatic enzymes, transport, modify and store lipids and to form lysosomes/vesicles.
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Lysosomes
Formed when vesicles from the golgi contain hydrolytic enzymes, lysosomes break down material ingested by phagocytic cells, they release enzymes outside of cell (exocytosis) and break down cells after they die
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Ribosomes
RIbosomes contain RNA and protein, and are the site of protein synthesis, theres are 80S ribosomes (eukaryotic), and 70S ribosomes (prokaryotic
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Microvilli
Small finger like projections that increase the surface area of a cell for more efficient absorption
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Other cards in this set

Card 2

Front

Mitochondria are the site of respriation, they produce ATP, which is used in respiration, it is made up of a double membrane, cristae (provide a large surface area), and matrix, which allow mitochondria to produce their own proteins.

Back

Mitochondria

Card 3

Front

Rough ER: Provides a large surface area for synthesis of proteins and provides a pathway for the transport of materials. Smooth ER: Synthesises and stores lipids and synthesis and stores carbohydrates (hence the absence of ribosomes on the Smooth ER)

Back

Preview of the back of card 3

Card 4

Front

The functions of the golgi are to add carbohydrate to proteins to form glycoproteins, produce secretory enzymes e.g. pancreatic enzymes, transport, modify and store lipids and to form lysosomes/vesicles.

Back

Preview of the back of card 4

Card 5

Front

Formed when vesicles from the golgi contain hydrolytic enzymes, lysosomes break down material ingested by phagocytic cells, they release enzymes outside of cell (exocytosis) and break down cells after they die

Back

Preview of the back of card 5
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