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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. 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






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






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






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






5. 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






6. Dissolver (water: universal solvent)






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






8. 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 ...






9. What is chief ingredient in living things?






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






11. Elements essential to life






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






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






14. The increase in randomness and loss of usable energy






15. Dissolved






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






17. Smallest unit of an element






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






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






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






21. 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






22. The putting together of living things






23. Absorbs heat; endo - within






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






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






26. Stored energy






27. Many sugars; complex carbs






28. Particles are mixed but not dissolved






29. 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)






30. Gives off heat; exo - outside






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






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






33. 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






34. Energy in motion






35. Matter is composed of ______






36. The ability to do work






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






38. Proteins only one that are...






39. Process of making two DNA molecules from one strand






40. The living content in a cell