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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. Cleave strands of DNA segments at certain sites.






3. Controls balance and muscle coordination






4. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






5. 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






6. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






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






8. Ended with the extinction of the dinosaurs.






9. 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.






10. Controls olfactory lobes (smell)






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






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






13. 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






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






15. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






16. 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.






17. 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.






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






19. 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.






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






21. The vocal cords are found in the larynx.






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






23. 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.






24. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






25. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






26. The phylum of insects (bees).






27. Are the organelles where cellular respiration occurs.






28. Is the waxy protective outer coating of leaves.






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






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






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






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






33. The sharp boundary of an ecosystem.






34. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






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






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






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






38. In DNA Thymine pairs with...






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






40. Decomposition of living matter for consumption.






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






42. In both living and non-living environments.






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






44. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






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






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






48. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






49. High temperatures






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