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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. Is the sugar that lactase acts upon.






2. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






3. 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






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






5. Plants and animals obtain usable nitrogen






6. 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






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






8. In both living and non-living environments.






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






10. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






11. 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.






12. Anabolism






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






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






15. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






16. The pituitary gland.






17. In DNA Guanine pairs with...






18. Contains optic lobes - controls sight.






19. 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






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






21. All store energy within their chemical bonds.






22. 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






23. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






24. Some enzymes contain a __________ component that is essential to their functions.






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






26. Covers and protects the leaf.






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






28. Respiratory organs within insects






29. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






30. Most fossils of Hominids are from continents other than...






31. High temperatures






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

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33. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






34. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






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






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






37. Refers to the birthrate of a population.






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






39. Includes all living and nonliving components of the Earth to support living things.






40. The individual we recognize as an adult fern.






41. The phyla composed of segmented worms.






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






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






44. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






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






46. The class composed of birds.






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






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






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






50. Allows for the genetic code to be preserved in future generations of cells.