Across
- 3. A part of the body that performs a specific function.
- 5. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
- 6. a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
- 9. the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs.
- 11. any of a number of organized or specialized structures within a living cell.
- 13. A group or layer of cells that work together to perform a specific function.
- 14. Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.
- 15. particle of matter that uniquely defines a chemical element.
- 17. water fearing
- 18. the net passive movement of molecules or particles from regions of higher to regions of lower concentration
- 19. to stimulate a cell in a resting state to become active.
- 20. a diverse category of products and are generally large, complex molecules.
- 21. its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others
Down
- 1. is a group of organs that work together to perform one or more functions.
- 2. a type of cellular transport in which substances such as ions and molecules move down their respective concentration
- 4. the unfolding or breaking up of a protein, modifying its standard three-dimensional structure.
- 7. the surface on which an organism (eg: plant, fungus, or animal) lives or the substance on which an enzyme can act.
- 8. the net movement of water across a semipermeable membrane.
- 9. a kind of cellular transport where substances move against a concentration gradient.
- 10. A lipid (fat) that contains phosphorus.
- 12. water loving
- 16. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.