Across
- 5. a process by which one or more reactants are converted into one or more products.
- 7. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
- 9. end substances after a biological process has occurred.
- 11. a substance whose atoms all have the same number of protons
- 13. A control group is the group in a study that does not include the thing being tested and is used as a benchmark to measure the results of the other group and is one of the two groups in any valid experiment. The experimental group is the other one and is the group in which you are testing something.
- 16. molecules that have a dipole or an uneven distribution of charge across their geometry resulting in one side being positive and the other side negative.
- 18. a thing or event that evokes a specific functional reaction in an organ or tissue.
- 23. A form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons
- 24. an enzyme the body uses to break down fats in food so they can be absorbed in the intestines.
- 29. an enzyme that is responsible for oxidizing ethanol and converting it into nicotinamide adenine dinucleotide (NADH).
- 31. the basic unit of a chemical element.
- 32. a class of things of the same kind and with the same name
- 33. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
- 34. attraction and repulsions between atoms, molecules, as well as other intermolecular forces.
- 36. the electromagnetic attraction created between a partially positively charged hydrogen atom attached to a highly electronegative atom and another nearby electronegative atom.
- 37. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
- 38. able to dissolve other substances.
- 39. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
- 40. the structure in a cell that contains the chromosomes.
- 44. The independent variable is the variable that is manipulated during an experiment, and it gets its name because it is independent of other factors.
- 45. a homogeneous mixture of one or more solutes dissolved in a solvent.
- 47. the hierarchy of complex biological systems and structures.
Down
- 1. The minimum energy required for a reaction to occur.
- 2. an enzyme that catalyses the hydrolysis of starch (Latin amylum) into sugars.
- 3. an atom or group of atoms that has an electric charge.
- 4. a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10 c, where c is the hydrogen ion concentration in moles per liter.
- 5. A material made up of two or more parts or elements.
- 6. a group of two or more atoms that are held together by attractive forces known as chemical bonds
- 8. evaluation of scientific, academic, or professional work by others working in the same field.
- 10. an uncharged atomic particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.
- 12. a reaction to something.
- 14. The substances which participate in a chemical reaction
- 15. the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
- 17. a chemical bond wherein there is a transfer of an electron from one atom to another.
- 19. an individual animal, plant, or single-celled life form.
- 20. the process of developing or being developed.
- 21. an experimental element which is constant (controlled) and unchanged throughout the course of the investigation.
- 22. a subatomic particle with a positive electrical charge.
- 25. Quantitative data is numbers-based, countable, or measurable. Qualitative data is interpretation-based, descriptive, and relating to language.
- 26. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 27. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
- 28. the action or process of adapting or being adapted.
- 30. a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
- 35. the surface on which an organism lives.
- 38. A substance that is dissolved in a solution
- 41. a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction.
- 42. the production of offspring by a sexual or asexual process.
- 43. an enzyme, often derived from microbes, that catalyzes the breakdown of proteins into smaller peptides or amino acids.
- 46. the process of increasing in physical size.