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CLEP Biology

Subjects : clep, science, biology
Instructions:
  • Answer 50 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. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






2. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






3. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






4. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






5. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






6. Cleave strands of DNA segments at certain sites.






7. Is the sugar that lactase acts upon.






8. Engages in both passive and active transport.






9. Is a molecule that stores information for protein synthesis and genetic coding.






10. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






11. Anabolism






12. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






13. The process of forming eggs and sperm cells in the reproductive organs.






14. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






15. Niche






16. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






17. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






18. Mitochondria - they constitute the center of cellular respiration.

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19. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






20. Covalent bonds






21. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






22. Respiratory organs within insects






23. The size of a cell is limited by the ratio of its surface area to volume.






24. Is a substance that changes the speed of a reaction without being affected itself.






25. Has loosely packed cells that allow for gas and moisture exchange.






26. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






27. Protein synthesis






28. Is the process that releases energy for use by the cell.






29. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






30. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






31. Absorb a photon of light and is found in the grana of the chloroplast.






32. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






33. Is the number of organisms that can be supported within a particular ecosystem.






34. Controls hunger and thirst






35. Are cells involved in immunity and are produced in bone marrow as stem cells.






36. The role played by an organism in its food chain.






37. The preservation of the integrity of genetic information from one generation to another.






38. The transfer of electrons.






39. Decomposition of living matter for consumption.






40. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






41. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






42. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






43. Inorganic phosphate






44. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






45. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






46. Is a phylum that contains jellyfish - hydra - etc.






47. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






48. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






49. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






50. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.