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Cells and Tissues
HN Year 1
| Question | Answer |
|---|---|
| Starts at the nuclear membrane and curves from there through the cytoplasm | Enoplasmic Reticulum |
| Small granules found floating free in the cytoplasm | Ribosomes |
| A spherical sac | Lysosome |
| Stacks of flattened parallel membrane pockets | Golgi Apparatus/Complex |
| Found near the nucleus, composed of bundles of tubules | Centriole |
| Spherical, temporary feature formed by layers of plasma membrane, may break up into smaller vacuoles | Vacuoles |
| Largest Organelle | Nucleus |
| Double membrane, surrounds nucleus | Nuclear Membrane |
| 90% is made up ofwater, jelly like substance It also contains enzymes, amino acids and other molecules needed for cell functions | Cytoplasm |
| Functions of Epithelial tissue | Protection Lining Secretions Transport |
| Found in the skin, vagina, anus and oesophagus | stratified squamous epithelium |
| Four basic types of tissue | Muscular Connective Nervous Epithelial |
| Properties of nervous tissue | Conductivity and irritability |
| What can be said about afferent, efferent and mixed nerves | Afferent neurone – Signal to brain Efferent neurone – From CNS Mixed nerve – Contain fibres of both |
| Loose connective and adipose tissue are both types of what? | Connective tissue |
| Controls many functions of the cell and the genetic material | Nucleus |
| Play a key roll in cell division | Centrioles |
| It converts the energy stored in glucose into ATP | Mitochondria |
| Isolates and transports proteins after their synthesis | Rough Endoplasmic Reticulum |
| Is also involved in the synthesis of fatty molecules such as lipids | Smooth Endoplasmic Reticulum |
| Play a key role in the assembly of proteins | Ribosomes |
| It packages proteins and carbohydrates into vesicles for ‘export’ | Golgi Body/Complex |
| This is where the digestion of cell nutrients takes place. They also breakdown foreign material | Lysosomes |
| They engulf substances in order to absorb them into the cell. | Vacuoles |
Created by:
hdou
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