Test your basic knowledge |

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 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.






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






3. Inorganic phosphate






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






5. Controls hunger and thirst






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






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






8. 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.






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






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






11. Refers to the birthrate of a population.






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






13. The process of forming eggs and sperm cells in the reproductive organs.






14. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






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






16. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






17. 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.






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






19. Covers and protects the leaf.






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






21. Protein synthesis






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






23. 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.






24. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






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






26. Is a phylum that contains sponges.






27. Is the sugar that lactase acts upon.






28. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






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






30. The sharp boundary of an ecosystem.






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






32. A suffix meaning 'to break apart.' O || ||






33. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






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






35. Covalent bonds






36. Is found on the stem between nodes.






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






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






39. 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.






40. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






41. Anabolism






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






43. Is the organelle where cellular reproductive processes occur.






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






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






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






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






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






49. The transfer of electrons.






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