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






2. Refers to the birthrate of a population.






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






4. Must be present for photosynthesis to occur - it is not used up in the process.






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






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






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






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






9. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






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






11. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






12. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






13. Breaking down






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






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






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






17. The class composed of birds.






18. High temperatures






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






20. The sharp boundary of an ecosystem.






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






23. Is a coenzyme required in the synthesis of collagen.






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






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






26. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






27. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






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






29. The phyla of round worms.






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






31. The phyla of sponges.






32. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






33. In both living and non-living environments.






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






35. 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.






36. Inorganic phosphate






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






38. The phylum of insects (bees).






39. 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






40. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






41. 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






42. Controls hunger and thirst






43. Is found on the stem between nodes.






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






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






46. Is the outermost layer of cells of the stem.






47. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






48. Plants and animals obtain usable nitrogen






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






50. 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