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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. 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






2. Gives off heat; exo - outside






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






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






5. Process of making two DNA molecules from one strand






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






7. The putting together of living things






8. Dissolved






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






10. What is chief ingredient in living things?






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






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






13. 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)






14. 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






15. Stored energy






16. 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 ...






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






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






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






20. 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






21. The living content in a cell






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






23. Particles are mixed but not dissolved






24. Absorbs heat; endo - within






25. Energy in motion






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






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






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






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






30. 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






31. Elements essential to life






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






33. Dissolver (water: universal solvent)






34. Many sugars; complex carbs






35. The increase in randomness and loss of usable energy






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






37. Smallest unit of an element






38. Matter is composed of ______






39. Proteins only one that are...






40. The ability to do work