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






2. Controls hunger and thirst






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






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






5. The phyla of sponges.






6. 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.






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






8. Controls olfactory lobes (smell)






9. Is a kingdom that includes algae and protozoa.






10. In DNA Thymine pairs with...






11. 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.






12. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






13. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






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






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






16. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






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






18. Layer that will become the gut lining as well as some accessory structures.






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






20. 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.






21. All store energy within their chemical bonds.






22. 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.






23. Disease causing






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






25. 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.






26. Niche






27. Is the outermost layer of cells of the stem.






28. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






29. Covalent bonds






30. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






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






32. Plants and animals obtain usable nitrogen






33. The phylum of insects (bees).






34. What phylum are snakes in?






35. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






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






37. Decomposition of living matter for consumption.






38. Respiratory organs within insects






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






40. 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






41. 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.






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






43. 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.






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






45. 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.






46. Contains optic lobes - controls sight.






47. Anabolism






48. An orienting response to light.






49. The transfer of electrons.






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