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






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






3. Disease causing






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






5. Is the sugar that lactase acts upon.






6. Carbon - Hydrogen - Oxygen - and Nitrogen






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






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






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






10. 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.






11. Contains optic lobes - controls sight.






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






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






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






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






16. All store energy within their chemical bonds.






17. Are the organelles where cellular respiration occurs.






18. The phylum of insects (bees).






19. 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.






20. 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.






21. 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






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






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






24. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






25. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






26. 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.






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






28. 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.






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






30. Algae and Protozoa belong to the kingdom...






31. Is a kingdom that includes algae and protozoa.






32. Decomposition of living matter for consumption.






33. In both living and non-living environments.






34. The number of organisms in a given community - can be above or below the carrying capacity.






35. Is the number of organisms that can be supported within a particular ecosystem.






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






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






38. Contains many genes and is a structure comprised of linear DNA and associated proteins.






39. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






40. Controls olfactory lobes (smell)






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






42. 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.






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






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






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






46. 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






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






48. 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.






49. 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.






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







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