Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science Topic 2
The Cell Systems
| Term | Definition |
|---|---|
| Cell | The basic unit of structure and function of living things |
| Microscope | An instrument that makes small things look larger |
| Cell Theory | A widely accepted explanation of the relationship between cells and living things |
| Organelle | A tiny cell structure that carries out a specific function within the cell. |
| Cell Wall | A rigid supporting layer that surrounds a cell of plants and some other organisms |
| Cell Membrane | A thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell |
| Cytoplasm | The thick fluid region of a cell located inside the cell membrane or between the cell membrane and nucleus |
| Nucleus | In cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities. |
| Mitochondria | Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out it's functions |
| Chloroplast | An organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it into an energy form that cells and use in making food. |
| Vacuole | A sac-like organelle the stores water, food, and other materials. |
| Selectively Permeable | A property of cell membranes that allow some substances to pass across it, while others cannot |
| Diffusion | The process of which molecules move from an area of higher concentration to an area of lower concentration |
| Osmosis | The diffusion of water molecules across a selectively permeable membrane |
| Endocytosis | The process of which the cell membrane takes particles into the cell by changing shape and engulfing the particles |
| Exocytosis | The process of which the vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell |
| Cell Cycle | The series of events in which a cell grows, prepares for division, and divides to form two daughter cells |
| Interphase | The first stage of the cell cycle that takes place before cell division occurs, during which a cell grows and makes a copy of its DNA |
| Replication | The process of which a cell makes a copy of the DNA in its nucleus before cell division |
| Mitosis | The second stage of the cell cycle during which the cell's nucleus divides into two new nuclei and one set of DNA of a gene or a chromosome |
| Cytokinesis | The final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the new daughter cells |
| Photosyntisis | The process of which plants and other autotrophs capture and use light energy to make food from carbon dioxide and water |
| Autotroph | An organism that is able to capture energy from sunlight and use it to produce its own food |
| Heterotroph | An organism that cannot make its own food and get food by consuming other living organisms |
| Chlorophyll | A green photosynthetic pigment found in the chloroplasts of plants, algae, and some bacteria |
| Cellular Respiration | The process of which oxygen and glucose undergo a complex series of of chemical reactions inside cells, releasing energy |
| Fermentation | The process of which cells release energy by breaking down food molecules without using oxygen |
| Tissue | A group of similar cells that perform a specific function |
| Organ | A body structure that is composed of different kinds of tissues that work together to perform a major function |
| Organ System | A group of organs that work together to perform a major function |
Created by:
Zidou14
Popular Biology sets