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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. Elements essential to life






2. Process of making two DNA molecules from one strand






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






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






5. Many sugars; complex carbs






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






7. 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






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






9. Smallest unit of an element






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






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






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






13. 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






14. Gives off heat; exo - outside






15. Absorbs heat; endo - within






16. Matter is composed of ______






17. The living content in a cell






18. The ability to do work






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






20. Stored energy






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






22. The increase in randomness and loss of usable energy






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






24. Particles are mixed but not dissolved






25. The putting together of living things






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






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






28. Dissolver (water: universal solvent)






29. Proteins only one that are...






30. 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






31. 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 ...






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






33. Dissolved






34. What is chief ingredient in living things?






35. 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






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






37. Energy in motion






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






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






40. 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)