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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 weaker than ionic - covalent - disulfide - or double bonds.






2. In both living and non-living environments.






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






4. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






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






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






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






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






9. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






10. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






11. This is a carboxyl group and is the signature group found within organic acids.






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. 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.






14. Super-class of vertebrae including organisms with jaws.






15. 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.






16. An enzyme is unaffected by the reactions it catalyzes






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






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






19. Synthesis






20. 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.






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






22. The individual we recognize as an adult fern.






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






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






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






27. Has loosely packed cells that allow for gas and moisture exchange.






28. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






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






30. The pituitary gland.






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






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






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






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






35. Engages in both passive and active transport.






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






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






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






39. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






40. Controls olfactory lobes (smell)






41. The transfer of electrons.






42. 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.






43. High temperatures






44. 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).






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






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






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






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






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






50. Niche