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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. What phylum are snakes in?






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






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






4. Process of breaking down complex materials (foods) to form simpler substances and release energy.






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






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






7. Synthesis






8. 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.






9. 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






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






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






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






13. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






14. In DNA Guanine pairs with...






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






16. 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.






17. 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.






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






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






20. Is a kingdom that includes algae and protozoa.






21. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






22. The individual we recognize as an adult fern.






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






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






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






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






27. Is found on the stem between nodes.






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






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






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






31. The transfer of electrons.






32. All store energy within their chemical bonds.






33. Contain one celled eukaryotes such as algae and protozoa.






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






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






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






37. 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






38. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






39. High temperatures






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






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






42. An enzyme is unaffected by the reactions it catalyzes






43. The class composed of birds.






44. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






45. 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.






46. Respiratory organs within insects






47. Refers to the birthrate of a population.






48. 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.






49. Is the waxy protective outer coating of leaves.






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