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16 Cards in this Set
- Front
- Back
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Describe mitochondria.
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The mitochondria are organelles in which energy is released from food.
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Describe chromosomes.
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The chromosomes are structures inside the nucleus that are made up of genes. Genes carry the code for all the cell's traits and its activities.
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What is the process called that allows water, oxygen, salts, and some waste products to pass through the cell membrane.
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diffusion
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What are the three main points of cell theory?
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1. Cells are the basic units of structure and function of all living things.
2. All life processes are carried out by cells. 3. New cells are produced from existing cells. |
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Describe the cell wall.
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The cell wall is found in plant cell and some protists but not in animal cells. It is stiff and give a rigid shape to the cell.
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Describe the vacuoles.
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The vacuoles are spaces in the cytoplasm where food and chemicals are stored.
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Different cells are not identical. What did cells have in common.
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All cells are bounded by a cell membrane and contain cytoplasm. Within the cytoplasm of most cells can be found mitochondria, vacuoles, and a nucleus that contains chromosomes and that is surounded by a nuclear membrane.
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What are the nine parts of a cell?
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1. cell membrane 2. cell wall 3. chloroplasts 4. chromosomes 5. cytoplasm 6. mitochondria 7. nuclear 8. nuclues 9. vacuoles
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Describe the nucleus.
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The nucleus controlls cell activities.
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Describe the cell membrane.
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The cell membrane holds the cell together and lets substances pass in and out of the cell.
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Describe the nuclear membrane.
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The nuclear membrane allows substances to pass in and out of the nucleaus.
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What are cells?
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Cells are the basic units of all living things.
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How can a bricks in a building be compared to cells in an organism?
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The cells of an organism are, in some ways, like the bricks in a building because from a distance all you see is the solid wall. But up close you can see the characteristics of each brick.
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What is diffusion?
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Diffusion is the tendency of a substance to move from an area of greater concentration to an area of lesser concentration. It continues until the two areas have equal concentrations of a subtance.
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What are cells mostly made of?
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water
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Describe cytoplasm.
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The cytoplasm is the watery gel inside the cell. Many materilas are dissolved or suspended inthe cytoplasm. Various structures called organelles are found in the cytoplasm.
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