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






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






3. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






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






5. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






6. 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.






7. Ended with the extinction of the dinosaurs.






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






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






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






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






12. The total amount of genetic information available for a given species.






13. 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






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






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






16. Anabolism






17. Engages in both passive and active transport.






18. Inorganic phosphate






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

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






21. 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.






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






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






24. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






25. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






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






27. Decomposition of living matter for consumption.






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






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






30. 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.






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






32. 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.






33. (of some plants or fungi) feeding on dead or decaying organic matter






34. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






35. 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






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






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






38. 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.






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






40. Controls hunger and thirst






41. Respiratory organs within insects






42. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






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






44. An enzyme is unaffected by the reactions it catalyzes






45. 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.






46. The sharp boundary of an ecosystem.






47. Disease causing






48. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






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






50. Plants and animals obtain usable nitrogen