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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. What is chief ingredient in living things?






2. Particles are mixed but not dissolved






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






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






5. Elements essential to life






6. The ability to do work






7. 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






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






9. Dissolver (water: universal solvent)






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






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






12. The increase in randomness and loss of usable energy






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






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






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






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






17. Stored energy






18. Dissolved






19. Absorbs heat; endo - within






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






21. Many sugars; complex carbs






22. Matter is composed of ______






23. 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






24. Smallest unit of an element






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






26. The living content in a cell






27. Energy in motion






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






29. Process of making two DNA molecules from one strand






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






32. Proteins only one that are...






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






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






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






36. The putting together of living things






37. 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 ...






38. Gives off heat; exo - outside






39. 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






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)