Biology Vocab #5
Across
- 5. Occurs when a substance involved in acellular process causes the process to speed up.
- 8. Extension of the cytoskeleton; usually only one or a few on a cell; propels the cell through its environment using a protein motor
- 9. This is the internal balance of a system that keeps conditions stable
- 11. Found in bacteria outside the cell membrane and cell wall; protects the cell
- 12. An organism whose organs found mostly in plants
- 14. “Powerhouse” of the cell; transforms energy from sugars into usable energy for the cell; has an inner membrane that contains folds (cristae), allowing for more surface area to increase energy output and more proteins to be embedded in the membrane
- 15. When cells are in a solution that is less concentrated than their cytoplasm
- 17. Found mostly in plants;stores water, salts, sugars, and proteins
- 23. Lipids have a hydrophilic (water-loving) end and a hydrophobic (water-fearing) end, so they arrange themselves into two layers
- 24. The genetic material of the nucleus; contains DNA, RNA, and proteins
- 27. “Post office” of the cell; receives substances from the ER and packages them into membrane sacs called vesicles
- 28. A type of colorless plastid; found in plants and algae; stores starches, lipids, and proteins
- 29. Found in prokaryotes; contains the genetic material for the cell
- 30. A system of fibers in the cytosol that helps maintain the cell’s shape and provides protein motors
- 31. This is a group of organs that work together
- 32. Found inside chloroplasts; made of stacks of thylakoids,which contain the green pigment
- 34. The movement of molecules across a membrane using chemical energy.
- 37. A solution that is concentrated than the cytoplasm of a cell
- 39. Surrounds each cell of both prokaryotes and eukaryotes;protects the cell and allows certain materials to move through it
- 40. A type of pigmented plastid; found in plants and algae; converts light energy from the sun into chemical energy
- 41. A type of vacuole; found in human, animal, and animal-like cells (protozoans); contains digestive enzymes that digest food, kill bacteria and viruses, and recycle old cell parts
- 42. The diffusion of a solvent through a semipermeable membrane, a membrane that allows certain substances to pass through it but not others
Down
- 1. The parts inside a cell.
- 2. Consists of everything within the cell membrane except the nucleus
- 3. Transports compounds around the cell and helps maintain the cell’s shape;processes fats and breaks down toxic substances in liver cells
- 4. This theory states that Cells are the structural and functional units of all living things and Cells come only from other preexisting cells.
- 6. An organism with cells that contain membrane-surrounded organelles
- 7. Found in both prokaryotes and eukaryotes because it’s not surrounded by a membrane; contains proteins and RNA;
- 10. This is made of two or more cells that depend on each other to function
- 13. Found in plants, fungi, algae,and bacteria; provides strength and rigidity to the cell
- 16. The movement of molecules across a membrane without the use of chemical energy.
- 18. Transports compounds around the cell and helps maintain the cell’s shape
- 19. Contains RNA and proteins; area of the nucleus where ribosomes are assembled
- 20. water, salts, sugars, and proteins;nelles lack surrounding membranes
- 21. In multicellular organisms, cells are organized into this.
- 22. This is an organism that is made of only one cell.
- 24. Extension of the cytoskeleton; often cover an entire cell or a portion of a cell; shorter than flagella; propel the cell through its environment
- 25. Occurs when a substance produced by a cellular process causes the process to slow down or stop.
- 26. Molecules move through the cell membrane with the help of transport proteins.
- 33. The water pressure inside the central vacuole that keeps the cell rigid
- 35. This is In multicellular organisms, cells are organized into
- 36. Some unicellular organisms work together in this way.
- 38. When cells and the solution that they are in have the same concentration of solutes