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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. 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.






2. 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.






3. 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.






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






5. 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.






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






7. Anabolism






8. 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.






9. Subsets below the kingdom level






10. Is the waxy protective outer coating of leaves.






11. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






12. The individual we recognize as an adult fern.






13. 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.






14. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






15. The phyla of sponges.






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






17. 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.






18. 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).






19. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






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






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






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






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






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






25. Respiratory organs within insects






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






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






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






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






30. Stood upright before there was an increase in brain size.






31. The destruction of gametes - (sex cells such as sperm and eggs).






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






33. 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.






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






35. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






36. 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.






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






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






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






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






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






42. 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.






43. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






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






45. An enzyme is unaffected by the reactions it catalyzes






46. Refers to the birthrate of a population.






47. Covalent bonds






48. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






49. The sharp boundary of an ecosystem.






50. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of







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