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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. The phyla of sponges.






2. Is a kingdom that includes algae and protozoa.






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






4. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






5. Is the organelle where cellular reproductive processes occur.






6. In DNA Thymine pairs with...






7. Anabolism






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






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






10. Synthesis






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






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






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






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






15. 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






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






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






18. Carbon - Hydrogen - Oxygen - and Nitrogen






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






20. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






21. 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.






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






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






24. 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






25. The vocal cords are found in the larynx.






26. Super-class of vertebrae including organisms with jaws.






27. Refers to the birthrate of a population.






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






29. The class composed of birds.






30. Covalent bonds






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






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

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






34. 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.






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






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






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






38. In DNA Guanine pairs with...






39. Ended with the extinction of the dinosaurs.






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






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






42. 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.






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






44. Subsets below the kingdom level






45. 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






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






47. Is weaker than ionic - covalent - disulfide - or double bonds.






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






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






50. Breaking down