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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. In any process - energy is neither created nor destroyed






2. Elements essential to life






3. The increase in randomness and loss of usable energy






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






5. Gives off heat; exo - outside






6. Proteins only one that are...






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






8. Energy in motion






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






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






11. Stored energy






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






13. Dissolved






14. 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 ...






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






16. Many sugars; complex carbs






17. 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






18. Dissolver (water: universal solvent)






19. The ability to do work






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






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






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






23. The living content in a cell






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






25. Smallest unit of an element






26. 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)






27. Absorbs heat; endo - within






28. The putting together of living things






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






30. Process of making two DNA molecules from one strand






31. 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






32. What is chief ingredient in living things?






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






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






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






36. 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






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






38. Particles are mixed but not dissolved






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. Matter is composed of ______