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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. 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.






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






3. 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






4. Is a coenzyme required in the synthesis of collagen.






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






6. Is the sugar that lactase acts upon.






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






8. Controls olfactory lobes (smell)






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






10. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






11. 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.






12. 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.






13. Subsets below the kingdom level






14. In DNA Guanine pairs with...






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






16. Allows for the genetic code to be preserved in future generations of cells.






17. Covalent bonds






18. 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.






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






20. In DNA Thymine pairs with...






21. 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.






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






23. 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.






24. An enzyme is unaffected by the reactions it catalyzes






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






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






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






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






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






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






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






32. 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.






33. 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.






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






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






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






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






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






39. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






40. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






41. 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.






42. 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






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






44. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






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






46. 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.






47. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






48. The phyla of round worms.






49. 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.






50. Contains organisms that are multicellular eukaryotes including molds and mushrooms.