Biology vocabulary

3. release of substances out of a cell by the fusion of a vesicle with the membrane.
5. having or consisting of many cells.
8. bean shaped organelle that supplies energy to the cell and has its own ribosomes and DNA.
12. membrane, made up of two lipid bilayer membranes which in eukaryotic cells surrounds the nucleus, which encases the genetic material.
15. transport, energy requiring movement of molecules across a membrane from a region of lower concentration to higher concentration.
17. organelle composer of numerous membranes that are used to convert solar energy into chemical energy contains chlorophyll.
18. diffusion of water molecules across a semipermeable membrane from an area of high concentration to an area of lower water concentration.
20. transport, movement of molecules across the cell membrane without energy input from the cell.
22. cell that has a nucleus and other membrane-bound organelles.
24. organelle that is used to store materials such as water food or enzymes that are needed by the cell.
25. cell that does not have a nucleus or other membrane bound organelles.
26. is an organism that consists of a single cell.

1. regulation and maintenance of constant internal conditions of an organism.
2. the basic unit of life.
4. is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
6. triphosphate, high energy molecule that contains within its bonds energy that cells can use.
7. movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
9. membrane-bound structure that is specialized to perform a distinct process within a cell.
10. uptake of liquids or large molecules into a cell by inward folding of the cell membrane.
11. membrane, double layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of the cell.
13. organelle that links amino acids together to form proteins.
14. wall, rigid structure that gives protection support and shape to cells in plants fungi algae and bacteria.
16. diffusion, diffusion of molecules assisted by protein channels that pierce the membrane.
19. uptake of a solid particle into the cell by engulfing the particle.
21. organelle composed of double membrane that acts of a store space house for most cells’ DNA.
23. gradient, difference in the concentration of a substance from one location to another.