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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. The sharp boundary of an ecosystem.






2. Respiratory organs within insects






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






4. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






5. 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.






6. 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.






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






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






9. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






10. 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






11. An orienting response to light.






12. Engages in both passive and active transport.






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






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






15. What phylum are snakes in?






16. 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.






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






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






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






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






21. 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.






22. 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).






23. 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.






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






25. In DNA Thymine pairs with...






26. Disease causing






27. Mitochondria - they constitute the center of cellular respiration.

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28. Covalent bonds






29. Is the waxy protective outer coating of leaves.






30. Refers to the birthrate of a population.






31. All store energy within their chemical bonds.






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






33. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






34. Decomposition of living matter for consumption.






35. Is the organelle where cellular reproductive processes occur.






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






37. 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.






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






39. 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.






40. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






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






42. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






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






44. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






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






46. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






47. Carbon - Hydrogen - Oxygen - and Nitrogen






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






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






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






Can you answer 50 questions in 15 minutes?



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