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CLEP Biology: Basic Chemistry

Subjects : clep, science, biology
Instructions:
  • Answer 40 questions in 20 minutes. 2 minutes extra for reading the instructions.
  • 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. Another nucleic acid; single strand; sometime replaces thymine






2. Dissolved






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






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






5. The increase in randomness and loss of usable energy






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






7. The ability to do work






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






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






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






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






12. Smallest unit of an element






13. Many sugars; complex carbs






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






16. Gives off heat; exo - outside






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






19. Stored energy






20. Dissolver (water: universal solvent)






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






22. 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






23. 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)






24. The putting together of living things






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






26. Energy in motion






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






28. 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






29. 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






30. Process of making two DNA molecules from one strand






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






32. Elements essential to life






33. Matter is composed of ______






34. Proteins only one that are...






35. Absorbs heat; endo - within






36. What is chief ingredient in living things?






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






38. The living content in a cell






39. Particles are mixed but not dissolved






40. 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