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






2. Breaking down






3. Contain one celled eukaryotes such as algae and protozoa.






4. Contains optic lobes - controls sight.






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






6. Ended with the extinction of the dinosaurs.






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






8. 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.






9. Is a coenzyme required in the synthesis of collagen.






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






11. 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).






12. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






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






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






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






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






17. What phylum are snakes in?






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






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






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






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






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






23. 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






24. Niche






25. 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.






26. High temperatures






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






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






29. The preservation of the integrity of genetic information from one generation to another.






30. Are cells involved in immunity and are produced in bone marrow as stem cells.






31. The phylum of insects (bees).






32. 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






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






34. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






35. Is found on the stem between nodes.






36. Enzymes are usually __________ to certain reactions.






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






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






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






40. 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.






41. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






42. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






43. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






44. Covalent bonds






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






46. Is the waxy protective outer coating of leaves.






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






48. The size of a cell is limited by the ratio of its surface area to volume.






49. Mitochondria - they constitute the center of cellular respiration.

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







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