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






2. 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).






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






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






5. 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.






6. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






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






8. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






11. 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.






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






13. Are the organelles where cellular respiration occurs.






14. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






15. A hydrogen bond involves the ________________ and can be easily broken.






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






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






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






19. Is disorganized - unravelled - DNA with histones attached.






20. The individual we recognize as an adult fern.






21. Subsets below the kingdom level






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






23. The phyla of sponges.






24. Is a kingdom that includes algae and protozoa.






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






26. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






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






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






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






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






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






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






33. The transfer of electrons.






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






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






36. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






37. Is found on the stem between nodes.






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

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






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






41. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






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






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






44. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






45. The phylum of insects (bees).






46. Respiratory organs within insects






47. 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






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






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






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