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Biology test
cell structure and functions/ cells and energy
Question | Answer |
---|---|
What is the cell theory? | The cell theory states that all organisms are made of cells, all cells are produced by other living cells, and the cell is the most basic unit of life. |
What is the cell membrane? | The cell membrane is a barrier that separates a cell from the external environment. |
What is required for an object to be considered alive? | Cells |
How do you determine if something is a plant or animal cell? | If you see a cell wall it is a plant cell. |
What is hypotonic? | A solution that has a solute concentration lower than the solute concentration inside a cell. |
What is hypertonic? | A solution that has a solute concentration higher than the solute concentration inside a cell. |
What is isotonic? | A solution that has a solute concentration equal to the solute concentration inside a cell. |
What is Facilitated diffusion? | It is the diffusion of molecules across a membrane through transport proteins. |
What is the job of a nucleus in the cell ? | The nucleus is the storehouse for most of the genetic information, or DNA (deoxyribonucleic acid), in your cells. |