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






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






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






4. What is chief ingredient in living things?






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






6. 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






7. Process of making two DNA molecules from one strand






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






9. Matter is composed of ______






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






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






12. 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






13. Elements essential to life






14. Many sugars; complex carbs






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






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






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






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






19. 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)






20. Gives off heat; exo - outside






21. The living content in a cell






22. Particles are mixed but not dissolved






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






24. Energy in motion






25. The putting together of living things






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






27. 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 ...






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






29. Dissolved






30. Absorbs heat; endo - within






31. Stored energy






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






33. Smallest unit of an element






34. The ability to do work






35. 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






36. Proteins only one that are...






37. The increase in randomness and loss of usable energy






38. 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






39. Dissolver (water: universal solvent)






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