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CLEP Biology: Basic Chemistry

Subjects : clep, science, biology
Instructions:
  • Answer 40 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Energy in motion






2. Smallest unit of an element






3. Made of nucleotides; sugar - phosphate - base; adenine - thyOOmine; guani`ne - cytosine






4. Composed of long chains of glucose; is a polysaccharide; found in plant cell walls; nondigestible by most animals; part of our diet called bulk or rubbage(fiber)






5. Mixture of fine particles that do not settle out quickly (ex. protoplasm)






6. Double sugars; maltose - sucrose - lactose; formed when monosaccharides undergo dehydration synthesis - when a suger looses hydrozyl group (OH) and another gives hydrogen - resulting in a water molecule and a ...






7. Dissolved






8. Particles are mixed but not dissolved






9. Found in nucleus of cell; contain info necessary for the manufacture of an organism's proteins; nucleic acid form genes; watson and crick discovered






10. Group of organic substances slightly soluble in water; very soluble in other organic liquids; mostly structural but also store energy; humans and animals store their excess energy as lipids






11. Absorbs heat; endo - within






12. Polysaccharide; animal starch (animals and humans eat starches abd break them down to monosaccharides; the liver converts them to glycogen for storage)






13. In any process - energy is neither created nor destroyed






14. The increase in randomness and loss of usable energy






15. Whenever energy is used - some of the energy is wasted






16. Stored energy






17. Polysaccharide; strong and flexible; makes up shells of crabs - lobsters - shrimp - insects; found in cell walls of fungi






18. Many sugars; complex carbs






19. Single sugars; glucose(C6H12O6) is a monosaccharide that is manufactured by plants in photosynthesis






20. Cannot change between gel and sol (ex. egg whites)






21. Process of making two DNA molecules from one strand






22. Homogenous(alike) mixture of one or more substances in another substance






23. Made of amino acids; polypeptide chain of amino acids; make up the majority of an organism's cells; used as enzymes or as building blocks






24. Affect the rate of the reaction but are not changed in the reaction






25. Most abundant form of lipids; building blocks for other lipids; have hydrophilic and hydrophobic ends; in water - will align themselves; good source of energy; found in dairy and animal tissues






26. Proteins only one that are...






27. Matter is composed of ______






28. Is a polysaccharide; stored by plants; a major energy source for humans; humans can't make it






29. Elements essential to life






30. Gives off heat; exo - outside






31. Organic compounds that contain carbon - hydrogen and oxygen; provide structure and store energy






32. The ability to do work






33. Another nucleic acid; single strand; sometime replaces thymine






34. Dissolver (water: universal solvent)






35. The diffusion of water(!!) through a semipermiable membrane; equilibrium is never reached.






36. What is chief ingredient in living things?






37. The putting together of living things






38. Can change between gel and sol phases (ex. protoplasm)






39. When a cell needs a monosaccharide - enzymes cause disaccharides to undergo hydrolysis - which means the breaking down of a disaccharide by adding a water molecule






40. The living content in a cell