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22 Cards in this Set
- Front
- Back
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What is diffusion?
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The net movement (spread) particles from a higher concentration to a lower concentration
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Is diffusion moving up or down a concentration gradient?
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Down a concentration gradient
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Name 5 parts of a cell that are found in both plants and animal cells
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- Nucleus
- Cytoplasm - Cell membrane - Ribosomes - Mitochondria |
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Name 3 parts of a cell that are only found in plant cells
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- Cell wall
- Chloroplasts - Sap vacuole |
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Which 2 parts of a cell can you only see through an electronmicroscope?
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Ribosomes and Mitochondria
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What is the function of the Nucleus?
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Control centre. Controls cell activities
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What is the function of the Cytoplasm?
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Jelly like substance. All chemical reactions happen here
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What is the function of the Cell membrane?
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Controls what enters and leaves the cell
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What is the function of the Ribosomes?
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Make proteins, from amino acids
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What is the function of the Mitochondria?
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Produces energy from respiratiion
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What is the function of the Chloroplasts?
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Contains chlorophyll to absorb sunlight
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What is the function of the Cell wall?
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Rigid outer layer which provides strength and support
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What does the tail on a Sperm cell do?
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It makes the cell able to swim to the egg
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What does the mitochondria in a Sperm cell do?
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Provides energy from respiration
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Why doesn't a Root hair cell have chloroplasts?
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Because it is under the ground so it doesn't absorb sunlight
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What does the hair-like structure do on a Root hair cell?
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It increases the surface area so it can absorb more water and minerals
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Why doesn't a Red blood cell have a nucleus?
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So it has more space to carry oxygen
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What does the special shape of a Red blood cell do?
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It increases the surface area so it can carry more oxygen
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Does a Bacterium cell have a nucleus or not?
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No, instead it has DNA in the cell which isn't enclosed
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Name 3 cell structures that a Bacterium has.
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- Cell membrane
- Cell wall - Ribosomes |
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Name the 5 cell structures that a Yeast cell has.
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- Nucleus
- Cell wall - Cell membrane - Ribosomes - Mitochondria |
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What does the Sap vacuole contain?
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Contains sugar and salts
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