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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. Enzymes are usually __________ to certain reactions.






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






3. 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.






4. The individual we recognize as an adult fern.






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






6. 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.






7. 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.






8. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






9. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






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






11. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






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






13. Controls olfactory lobes (smell)






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






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






16. The phyla composed of segmented worms.






17. 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.






18. The systematic search for individuals with a specific genotype in a delineated population.






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






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






21. Inorganic phosphate






22. Is the waxy protective outer coating of leaves.






23. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






24. 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.






25. It secretes saliva which enters the digestive tract and aids the digestive process.






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






27. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






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






29. Synthesis






30. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






31. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






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






33. Covalent bonds






34. Are the organelles where cellular respiration occurs.






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






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






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






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






39. Layer that will become the skin - some endocrine glands - and the nervous system.






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






41. Veins in the leaf and are also distributed throughout the stem






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






43. Refers to the birthrate of a population.






44. Controls balance and muscle coordination






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. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






48. Is a substance that changes the speed of a reaction without being affected itself.






49. Ended with the extinction of the dinosaurs.






50. Covers and protects the leaf.







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