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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. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






2. The destruction of gametes - (sex cells such as sperm and eggs).






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






4. Is the outermost layer of cells of the stem.






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






6. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






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






8. Ended with the extinction of the dinosaurs.






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






10. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






11. 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






12. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






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






14. Allows for the genetic code to be preserved in future generations of cells.






15. All store energy within their chemical bonds.






16. What phylum are snakes in?






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






18. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






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






20. Niche






21. Carbon - Hydrogen - Oxygen - and Nitrogen






22. Synthesis






23. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






24. The phyla of round worms.






25. 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.






26. 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.






27. Are the organelles where cellular respiration occurs.






28. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






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. Super-class of vertebrae including organisms with jaws.






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






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






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






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






35. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






36. Nonvascular plants such as mosses which lack tissue for conducting food or water.






37. Engages in both passive and active transport.






38. Is the organelle where cellular reproductive processes occur.






39. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






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






41. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






42. The phyla composed of segmented worms.






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






44. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






45. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






46. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.






47. Is a kingdom that includes algae and protozoa.






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






49. Is the sugar that lactase acts upon.






50. Algae and Protozoa belong to the kingdom...