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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. The individual we recognize as an adult fern.






2. 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.






3. Absorb a photon of light and is found in the grana of the chloroplast.






4. Subsets below the kingdom level






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






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






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






8. 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.






9. 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.






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






11. The sharp boundary of an ecosystem.






12. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






13. All store energy within their chemical bonds.






14. Some enzymes contain a __________ component that is essential to their functions.






15. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






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






17. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






18. What phylum are snakes in?






19. The large brain and upright posture of Homo Sapiens...






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






21. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






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






23. Cleave strands of DNA segments at certain sites.






24. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






25. 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






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






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






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






29. Breaking down






30. Is the organelle where cellular reproductive processes occur.






31. Are the organelles where cellular respiration occurs.






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






33. In DNA Thymine pairs with...






34. Plants and animals obtain usable nitrogen






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






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






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






38. 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.






39. Is the sugar that lactase acts upon.






40. 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






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






42. The vocal cords are found in the larynx.






43. Respiratory organs within insects






44. Decomposition of living matter for consumption.






45. Is a packet of digestive enzymes that destroy cellular wastes.






46. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






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






48. Some energy is lost as heat and becomes unusable.






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






50. 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