Flashcards
Cells
Cards in this deck (23)
- 1Functions of a cell?Protection and support
Movement
Communication
Growth and repair
Metabolism and energy - 2Nerve cells specialise incommunication and integration of information.
- 3Muscle cells specialise inin contraction and movement
- 4Blood cells specialisein transport and defense
- 5Lung cells specialise inthe movement of gases
- 6Gut cells specialise inabsorption and secretion.
- 7Lining cells/epithelial cellshave several functions
- 8Structure of cell membranePhospholipid bilayer
Cholesterol
Proteins
attached carbohydrates - 9Membrane functionBarrier between inside and outside of the cell
Controls the entry of materials (transport)
Receives chemical and mechanical signals
Transmits signals between intra and extra cellular spaces. - 10What is the cytoplasm?Contains the cells contents
Includes organelles and cytosol
Excludes the nucleus - 11What is cytosol?The medium in which the cell's chemical reactions take place.
- 12What are ribosomes?Site of protein synthesis
Contain ribosomal RNA (Ribonucleic acid)
Can be attached to endoplasmic reticulum or can be free in cytosol - 13Ribosomes are composed of two sub-units...one small and one large.
- 14Smooth and Rough Endoplasmic reticulumSyntheisis and intracellular transport
Lipid synthesis- completed by both smooth and rough ER.
Protein synthesis - rough ER only.
Protein modification.
Transport around the cell. - 15Golgi complexModify and package proteins. E.g. lipoproteins and glycoproteins.
Some packaged into vesicles
Lysosomes - 16Lysosomes containdigestive enzymes
- 17Small bodies in a cell?Lysosomes
Peroxisomes
Proteasomes
Granules - 18Peroxisomes function?Oxidise for detoxification
- 19Proteasomes function?Digest proteins.
- 20Granules contain?Fuel stores, e.g glycogen granules.
- 21Mitochondrial function?Energy (ATP) production.
Where oxygen is used up.
Where nutrients are burned to generate energy in the form of ATP. - 22Nucleus structure?Round or oval structure.
Surrounded by a nuclear envelope.
Openings = nuclear pores.
Can include a nucleolus. - 23Nucleus function?Store genetic material.
Contains DNA.
Can copy information for transfer.
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- University Pod Year 1 Flashcards on Cells, created by Morgan Morgan on 28/12/2013.
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- Morgan Morgan
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