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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. 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






2. 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






3. Many sugars; complex carbs






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






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






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






7. The increase in randomness and loss of usable energy






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






9. Process of making two DNA molecules from one strand






10. The ability to do work






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






12. The putting together of living things






13. Particles are mixed but not dissolved






14. Stored energy






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






16. Energy in motion






17. 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 ...






18. Matter is composed of ______






19. 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






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






21. The living content in a cell






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






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






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






25. Smallest unit of an element






26. Elements essential to life






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






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






29. Dissolver (water: universal solvent)






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






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. Dissolved






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






34. What is chief ingredient in living things?






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






36. 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)






37. Absorbs heat; endo - within






38. Gives off heat; exo - outside






39. Proteins only one that are...






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