Across
- 2. Items going into a reaction
- 5. Element found in all organic compounds
- 6. Makes up most of the cell membrane
- 8. Filling of the cell
- 12. Type of chemical bond involving the sharing of electrons between atoms
- 13. The first life form on earth
- 14. Location on an enzyme where a reaction will take place.
- 15. Organelle that performs photosynthesis
- 17. The process of making food from sunlight, water, and carbon dioxide
- 18. The chemical energy needed to fuel cells
- 19. Type of respiration involving the creation of energy without oxygen
- 21. Energy storage for later
- 22. a stable internal environment.
- 24. Gas that makes up most of the current day atmosphere
- 25. A reactant that goes into the active site of an enzyme.
- 26. Store and transfer genetic information
Down
- 1. Variable that is manipulated (Changed) in an experiment.
- 3. Type of organism capable of living in extreme environments
- 4. Variables that remain the same between groups in an experiment.
- 7. Building block of a macromolecule
- 8. the process of taking in food and breaking it down to creat ATP
- 9. Gas released by photosynthesis
- 10. Description of an organism that is made up of a single cell
- 11. A characteristic of life that includes photosynthesis and cellular respiration. It is the making and breaking down of food and energy in the body.
- 14. Monomer of a protein
- 15. Immediate source of energy
- 16. Type of cell that is smaller, does not contain organelles. DNA is enclosed in the nucleus
- 20. A type of protein that speeds up biochemical reactions
- 23. Monomer of a lipid
- 27. Original source of energy in most environments