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






2. The pituitary gland.






3. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






4. In DNA Thymine pairs with...






5. 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






6. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






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






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






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






10. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






11. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






12. 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






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






14. Cleave strands of DNA segments at certain sites.






15. Breaking down






16. 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.






17. When the water concentration inside and outside the cell is equal - It is said to be in an...






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






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






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






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






22. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






23. Contains optic lobes - controls sight.






24. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






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






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






28. 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.






29. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






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






31. Ended with the extinction of the dinosaurs.






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






33. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






34. An orienting response to light.






35. Protein synthesis






36. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






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






38. An enzyme is unaffected by the reactions it catalyzes






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






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






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






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






43. Veins in the leaf and are also distributed throughout the stem






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






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






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






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






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






49. Covalent bonds






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