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






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






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






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






5. Is the number of organisms that can be supported within a particular ecosystem.






6. 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.






7. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






8. Cleave strands of DNA segments at certain sites.






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






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






11. What phylum are snakes in?






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






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






14. 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






15. 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.






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






17. It secretes saliva which enters the digestive tract and aids the digestive process.






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






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






20. Includes all living and nonliving components of the Earth to support living things.






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






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






23. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






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






25. The sharp boundary of an ecosystem.






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






27. Ended with the extinction of the dinosaurs.






28. Is the sugar that lactase acts upon.






29. Is a special protein that acts as a catalyst for organic reactions.






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






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






32. The phyla of round worms.






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






34. The role played by an organism in its food chain.






35. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






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






37. The individual we recognize as an adult fern.






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






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






40. Disease causing






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






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






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






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






45. 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.






46. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






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






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






49. 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






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