Test your basic knowledge |

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






2. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






3. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






4. This is a carboxyl group and is the signature group found within organic acids.






5. Breaking down






6. Is a kingdom that includes algae and protozoa.






7. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






8. Covalent bonds






9. Is the waxy protective outer coating of leaves.






10. Enzymes are usually __________ to certain reactions.






11. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






12. Decomposition of living matter for consumption.






13. Contains many genes and is a structure comprised of linear DNA and associated proteins.






14. Are the organelles where cellular respiration occurs.






15. 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.






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






17. Is the organelle where cellular reproductive processes occur.






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






19. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






20. Contains optic lobes - controls sight.






21. 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.






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






23. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






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






25. Is a packet of digestive enzymes that destroy cellular wastes.






26. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






27. Super-class of vertebrae including organisms with jaws.






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






29. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






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






31. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






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






33. Super-class of vertebrae including organisms with no jaws.






34. Layer that will become the gut lining as well as some accessory structures.






35. Synthesis






36. 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.






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






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






39. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






40. 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.






41. 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).






42. 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.






43. The pituitary gland.






44. The phyla of sponges.






45. Is found in the root cap and is responsible for quick growth in the roots.






46. Is weaker than ionic - covalent - disulfide - or double bonds.






47. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






48. Ended with the extinction of the dinosaurs.






49. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






50. Carbon - Hydrogen - Oxygen - and Nitrogen