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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. Controls olfactory lobes (smell)






2. High temperatures






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






4. 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.






5. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






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






7. 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






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






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






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






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






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






13. The individual we recognize as an adult fern.






14. The systematic search for individuals with a specific genotype in a delineated population.






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






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






17. Enzymes are usually __________ to certain reactions.






18. Covers and protects the leaf.






19. The class composed of birds.






20. Is a phylum that contains sponges.






21. Channels is cell membranes that carry water between cells.






22. The phylum of insects (bees).






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






24. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






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






26. 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






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






28. The role played by an organism in its food chain.






29. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






30. 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).






31. The vocal cords are found in the larynx.






32. 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






33. 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






34. In DNA Guanine pairs with...






35. The phyla composed of segmented worms.






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






37. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






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






39. An enzyme is unaffected by the reactions it catalyzes






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






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






43. Disease causing






44. Ended with the extinction of the dinosaurs.






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






46. 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






47. An orienting response to light.






48. 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.






49. Niche






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