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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. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






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






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






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






5. Layer that will become the gut lining as well as some accessory structures.






6. Is a coenzyme required in the synthesis of collagen.






7. 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.






8. 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






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






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






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






12. 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






13. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






14. 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






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






16. 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.






17. 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.






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






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






20. 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.






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






22. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






23. 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






24. Cleave strands of DNA segments at certain sites.






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






26. Niche






27. (of some plants or fungi) feeding on dead or decaying organic matter






28. Synthesis






29. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






30. The vocal cords are found in the larynx.






31. The phyla of round worms.






32. 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






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






34. 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






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






36. Enzymes are usually __________ to certain reactions.






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






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






39. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






40. Is a molecule that stores information for protein synthesis and genetic coding.






41. 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






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






43. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






44. The process of forming eggs and sperm cells in the reproductive organs.






45. All store energy within their chemical bonds.






46. Layer that will become the skin - some endocrine glands - and the nervous system.






47. Is found on the stem between nodes.






48. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






49. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






50. 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.