Across
- 3. The smallest unit of all known living organisms.
- 4. A gelatin like substance within a cell membrane where most cell processes occur.
- 6. The second highest rank in biological classification, divided into smaller groups called phyla.
- 7. The process by which a system maintains stable and constant, such as a human body regulating its internal temperature.
- 10. A collection of tissues serving a common function as a self contained part of an organism.
- 15. The process in which substances move freely, not requiring energy or work, across cell membranes.
- 18. The process in which solvent molecules (like water) pass through semi-permeable membranes, traveling into and out of cells.
- 19. A two-word naming system used to classify living things.
- 22. A combination of two or more substances, in which the substances keep their identity.
- 24. The process in which a cell engulfs and absorbs molecules that cannot pass though the cell membrane; requires energy.
- 25. Any metabolic process that releases energy from an organic molecule, such as sugar, but does not specifically require oxygen.
- 26. Inanimate matter made of two of more substances, whose molecules are usually not carbon.
- 33. An organism made of cells that contain a membrane-bound nucleus and other membrane-bound organelles, such as mitochondrion and chloroplast.
- 34. A grouping of similar cells that carry out a specific function in plants and animals.
- 35. A single-celled organism made of cells that do not contain a membrane-bound nucleus and other membrane-bound organelles, such as mitochondrion and chloroplast.
- 36. A living cell housing foreign molecules, such as a virus.
- 37. The organelle that acts as the control center of most eukaryotic cells, bound by a double-membrane, and contains the cell’s genetic material.
- 38. Separate structures, usually within eukaryotic cells, with specific functions.
Down
- 1. A rigid layer that surrounds the cell membranes of some cells (like plant cells), providing support and protection.
- 2. The process in which molecules move from lower concentration, across cell membranes, to an area of higher concentration; requires energy and work.
- 5. An organelle bound by membrane, found mostly in eukaryotic cells, and involved in a number of cell processes, especially producing energy for the cell (ATP).
- 8. A group of organs that work together to perform one or more functions within an organism.
- 9. An organelle that is a network of membranes involved in several metabolic processes within eukaryotic cells.
- 11. The state in which all influences of a system are balanced.
- 12. A generic name for living organisms in a class with common characteristics; forms the first part of Binomial Nomenclature and is always capitalized.
- 13. Organelles in certain cells (like plant cells) that conduct a number of processes, such as photosynthesis.
- 14. An organelle in most eukaryotic cells that collects and dispatches protein products, received from the endoplasmic reticulum, in membrane-bound vesicles.
- 16. Found within all living cells and is responsible for the process of translation, a four phase process which changes mRNA into protein.
- 17. The process in which a plant gets and processes energy from the sun.
- 20. Animate matter made of two of more substances, whose molecules usually contain carbon.
- 21. The process in which substances, in vesicles, are moved through the cell membrane and out of the cell; requires energy.
- 23. Molecules (usually proteins) that act as catalysts in chemical reactions.
- 27. The processes of a cell that change nutrients into energy the cell can use and then release waste.
- 28. Protects and separates a cell from its outside environment; selectively permeable.
- 29. Describes the properties of cells, such as: all cells come from other cells, cells are the basic unit of life, and all living organisms are made of cells.
- 30. All chemical reactions that sustain life and occur in living organisms, such as digestion, reproduction, energy transformations, etc.
- 31. The process in which a substance moves, randomly and uniformly, from an area where it is highly concentrated to an area of lower concentration.
- 32. A living thing consisting of one or more cells.
- 35. The history of organisms and their changes over time.