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






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






3. 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






4. Absorb a photon of light and is found in the grana of the chloroplast.






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






6. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






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






8. An enzyme is unaffected by the reactions it catalyzes






9. 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.






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






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






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






13. The phyla composed of segmented worms.






14. 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.






15. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






16. Cleave strands of DNA segments at certain sites.






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






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






19. 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.






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






21. Is a substance that changes the speed of a reaction without being affected itself.






22. Is a kingdom that includes algae and protozoa.






23. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






24. Is the waxy protective outer coating of leaves.






25. Is found in the root cap and is responsible for quick growth in the roots.






26. Decomposition of living matter for consumption.






27. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






28. Covalent bonds






29. Is a phylum that contains jellyfish - hydra - etc.






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






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






32. 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






33. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






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






35. 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.






36. 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






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






38. Controls olfactory lobes (smell)






39. Covers and protects the leaf.






40. The phyla of round worms.






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






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






43. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






44. The transfer of electrons.






45. The large brain and upright posture of Homo Sapiens...






46. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






47. 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.






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






49. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






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