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






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






3. 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.






4. Respiratory organs within insects






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






6. 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






7. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






8. Is disorganized - unravelled - DNA with histones attached.






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






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






11. Is a kingdom that includes algae and protozoa.






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






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






14. Synthesis






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






16. Plants and animals obtain usable nitrogen






17. Controls balance and muscle coordination






18. 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.






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






20. Is a phylum that contains sponges.






21. The sharp boundary of an ecosystem.






22. 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.






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






24. Most fossils of Hominids are from continents other than...






25. High temperatures






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






27. The class composed of birds.






28. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






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






30. 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.






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






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






33. 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






34. Controls olfactory lobes (smell)






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






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






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






38. Inorganic phosphate






39. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






40. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






41. Cleave strands of DNA segments at certain sites.






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






43. Is the sugar that lactase acts upon.






44. Covers and protects the leaf.






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






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






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






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






49. The vocal cords are found in the larynx.






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