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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. What is chief ingredient in living things?






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






3. 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






4. Process of making two DNA molecules from one strand






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






6. 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)






7. Dissolver (water: universal solvent)






8. The living content in a cell






9. The increase in randomness and loss of usable energy






10. Particles are mixed but not dissolved






11. The ability to do work






12. Dissolved






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






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






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






16. 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






17. 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 ...






18. Matter is composed of ______






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






20. Many sugars; complex carbs






21. Elements essential to life






22. Gives off heat; exo - outside






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






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






25. 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






26. 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






27. The putting together of living things






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






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






30. Energy in motion






31. Proteins only one that are...






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






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






34. Smallest unit of an element






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






36. Absorbs heat; endo - within






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






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






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






40. Stored energy