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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. Some enzymes contain a __________ component that is essential to their functions.






2. Some energy is lost as heat and becomes unusable.






3. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






4. Channels is cell membranes that carry water between cells.






5. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






6. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






7. Is disorganized - unravelled - DNA with histones attached.






8. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






9. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






10. The class composed of birds.






11. The phyla composed of segmented worms.






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






13. What phylum are snakes in?






14. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






15. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






16. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






17. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






18. Is a coenzyme required in the synthesis of collagen.






19. Controls hunger and thirst






20. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






21. Is the organelle where cellular reproductive processes occur.






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






23. Respiratory organs within insects






24. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






25. 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.






26. The number of organisms in a given community - can be above or below the carrying capacity.






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






28. Must be present for photosynthesis to occur - it is not used up in the process.






29. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






30. 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.






31. Inorganic phosphate






32. The phyla of round worms.






33. Refers to the birthrate of a population.






34. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






35. The large brain and upright posture of Homo Sapiens...






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






37. Is the outermost of the three main layers of an embryo.






38. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






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






40. Is a special protein that acts as a catalyst for organic reactions.






41. In both living and non-living environments.






42. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






43. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






44. Transfers water and does not require sieve plates to allow nutrients through.






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

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46. 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.






47. Anabolism






48. Most fossils of Hominids are from continents other than...






49. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






50. 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.