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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 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.






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






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






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






6. The sharp boundary of an ecosystem.






7. Ended with the extinction of the dinosaurs.






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






9. 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.






10. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






11. Is the waxy protective outer coating of leaves.






12. 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.






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






14. Is found on the stem between nodes.






15. Decomposition of living matter for consumption.






16. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






17. An enzyme is unaffected by the reactions it catalyzes






18. Controls balance and muscle coordination






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






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






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






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






23. Super-class of vertebrae including organisms with no jaws.






24. 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.






25. Cleave strands of DNA segments at certain sites.






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






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






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






29. Plants and animals obtain usable nitrogen






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






31. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






32. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






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






34. Is the organelle where cellular reproductive processes occur.






35. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






36. 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






37. Synthesis






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






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






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






41. Controls olfactory lobes (smell)






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






43. The transfer of electrons.






44. Is the process that releases energy for use by the cell.






45. Contain one celled eukaryotes such as algae and protozoa.






46. A hydrogen bond involves the ________________ and can be easily broken.






47. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






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






49. Is a kingdom that includes algae and protozoa.






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