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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 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.






2. Is the organelle where cellular reproductive processes occur.






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






4. 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.






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






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






7. Disease causing






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






9. 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.






10. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






11. 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.






12. 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






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






14. An enzyme is unaffected by the reactions it catalyzes






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






16. The vocal cords are found in the larynx.






17. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






18. Is a kingdom that includes algae and protozoa.






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






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






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






22. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






23. Controls balance and muscle coordination






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






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. Enzymes are usually __________ to certain reactions.






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






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






29. An orienting response to light.






30. A suffix meaning 'to break apart.' O || ||






31. 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.






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






33. Absorb a photon of light and is found in the grana of the chloroplast.






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






35. Inorganic phosphate






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






37. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






38. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






39. 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.






40. 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






41. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






42. 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.






43. Is found on the stem between nodes.






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






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






46. 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.






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






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






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






50. Cleave strands of DNA segments at certain sites.