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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. The living content in a cell






2. What is chief ingredient in living things?






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






4. Elements essential to life






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






6. The putting together of living things






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






8. Process of making two DNA molecules from one strand






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






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






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






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






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






14. 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






15. Absorbs heat; endo - within






16. Stored energy






17. Many sugars; complex carbs






18. 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 ...






19. Gives off heat; exo - outside






20. 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






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






22. Energy in motion






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






24. Dissolver (water: universal solvent)






25. 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)






26. The ability to do work






27. Matter is composed of ______






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






29. 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






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






31. 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






32. Smallest unit of an element






33. The increase in randomness and loss of usable energy






34. Particles are mixed but not dissolved






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






36. Proteins only one that are...






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






38. Dissolved






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






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