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16 Cards in this Set

  • Front
  • Back
Describe mitochondria.
The mitochondria are organelles in which energy is released from food.
Describe chromosomes.
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.
What is the process called that allows water, oxygen, salts, and some waste products to pass through the cell membrane.
What are the three main points of cell theory?
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.
Describe the cell wall.
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.
Describe the vacuoles.
The vacuoles are spaces in the cytoplasm where food and chemicals are stored.
Different cells are not identical. What did cells have in common.
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.
What are the nine parts of a cell?
1. cell membrane 2. cell wall 3. chloroplasts 4. chromosomes 5. cytoplasm 6. mitochondria 7. nuclear 8. nuclues 9. vacuoles
Describe the nucleus.
The nucleus controlls cell activities.
Describe the cell membrane.
The cell membrane holds the cell together and lets substances pass in and out of the cell.
Describe the nuclear membrane.
The nuclear membrane allows substances to pass in and out of the nucleaus.
What are cells?
Cells are the basic units of all living things.
How can a bricks in a building be compared to cells in an organism?
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.
What is diffusion?
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.
What are cells mostly made of?
Describe cytoplasm.
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.