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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. 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.






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






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






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






5. Has loosely packed cells that allow for gas and moisture exchange.






6. Niche






7. Controls balance and muscle coordination






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






9. A suffix meaning 'to break apart.' O || ||






10. Is the organelle where cellular reproductive processes occur.






11. The class composed of birds.






12. 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.






13. 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.






14. 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.






15. Absorb a photon of light and is found in the grana of the chloroplast.






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






17. The number of organisms in a given community - can be above or below the carrying capacity.






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






19. Ended with the extinction of the dinosaurs.






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






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






22. All store energy within their chemical bonds.






23. In DNA Thymine pairs with...






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






25. Inorganic phosphate






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






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






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






29. 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).






30. 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






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






32. Is a kingdom that includes algae and protozoa.






33. 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






34. Controls hunger and thirst






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






36. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






37. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






38. 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.






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






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






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






42. 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






43. What phylum are snakes in?






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






45. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






46. 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






47. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






48. Is a special protein that acts as a catalyst for organic reactions.






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






50. The phyla composed of segmented worms.