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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. Gives off heat; exo - outside






2. Stored energy






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






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






5. Many sugars; complex carbs






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






7. Proteins only one that are...






8. Matter is composed of ______






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






10. The increase in randomness and loss of usable energy






11. The putting together of living things






12. 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)






13. The living content in a cell






14. Dissolved






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






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






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






18. 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






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






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






21. Energy in motion






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






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






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. 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






26. 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 ...






27. The ability to do work






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






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






30. 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






31. What is chief ingredient in living things?






32. Absorbs heat; endo - within






33. Particles are mixed but not dissolved






34. Elements essential to life






35. Process of making two DNA molecules from one strand






36. Smallest unit of an element






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






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






39. Dissolver (water: universal solvent)






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