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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. High temperatures






2. Is the process that releases energy for use by the cell.






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






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






5. Covers and protects the leaf.






6. Refers to the birthrate of a population.






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






8. Is the outermost of the three main layers of an embryo.






9. Niche






10. 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






11. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






12. 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.






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






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






15. 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.






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






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






18. 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






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






20. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






21. 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.






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






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






24. Is found on the stem between nodes.






25. An enzyme is unaffected by the reactions it catalyzes






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






27. Super-class of vertebrae including organisms with no jaws.






28. The transfer of electrons.






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






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






31. Controls balance and muscle coordination






32. 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.






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






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






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






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






37. 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.






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






39. The vocal cords are found in the larynx.






40. Contains optic lobes - controls sight.






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






42. 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






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






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






45. 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).






46. 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.






47. 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.






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






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






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