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11 Cards in this Set
- Front
- Back
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Describe the structure and function of the plasma membrane
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Structure - phospholipid bilayer
Function - selectively permeable boundary for transport of nutrients; contains proteins |
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Describe the function of cytoplasm
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Function - gives cell shape; site of metabolic reactions
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Describe the structure and function of the nucleus
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Structure - consists of two nuclear membranes; one or more nucleolus; and chromatin
Function - control centre; contains DNA |
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Describe the function of the smooth and rough endoplasmic reticulum
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Smooth - synthesis of lipids
Rough - synthesis of proteins |
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Describe the function of the Golgi apparatus
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Function - packages material made in the cell and transforms it into units that are distributed in or out of cell
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Describe the function of mitochondria
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Function - principle site of energy production in the form of ATP
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Describe the function of lysosomes
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Function - digest damaged cellular structures, food particles, bacterial cells; contain digestive enzymes
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Describe the structure and function of centrioles
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Structure - each consists of nine groups of three microtubules arranged in a circle
Function - cell division |
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What is constitutive secretion?
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Secretion of proteins that occurs regardless of environmental factors
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What is regulated secretion?
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Secretion of proteins that occurs in response to a specific signal (e.g. hormonal)
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What are the 3 types of filaments that make up the cytokeleton? What are they made of?
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Microfilaments - actin
Intermediate filaments - depends on tissue (e.g. keratin) Microtubules - tubulin |
