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






2. Controls balance and muscle coordination






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






4. 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.






5. In both living and non-living environments.






6. Protein synthesis






7. Is a phylum that contains sponges.






8. 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






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






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






11. Cleave strands of DNA segments at certain sites.






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






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






14. Breaking down






15. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






16. 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.






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






18. 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.






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






20. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






21. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






22. In DNA Thymine pairs with...






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






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






25. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






26. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






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






28. Controls hunger and thirst






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






30. Develops from the morula as a thin layer of cells surrounding an internal cavity.






31. Covers and protects the leaf.






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






33. The class composed of birds.






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






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






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






38. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






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






40. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






41. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






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






43. 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.






44. 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






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






46. (of some plants or fungi) feeding on dead or decaying organic matter






47. Carbon - Hydrogen - Oxygen - and Nitrogen






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






49. 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.






50. Are the organelles where cellular respiration occurs.