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






2. Dissolved






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






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






5. The ability to do work






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






7. 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






8. Dissolver (water: universal solvent)






9. Process of making two DNA molecules from one strand






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






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






12. Stored energy






13. Many sugars; complex carbs






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






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






16. Smallest unit of an element






17. Matter is composed of ______






18. The putting together of living things






19. 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 ...






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






21. Absorbs heat; endo - within






22. What is chief ingredient in living things?






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






24. 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






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






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






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






28. Gives off heat; exo - outside






29. Proteins only one that are...






30. The living content in a cell






31. 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






32. 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)






33. The increase in randomness and loss of usable energy






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






35. Particles are mixed but not dissolved






36. 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






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






38. Elements essential to life






39. Energy in motion






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