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






2. Engages in both passive and active transport.






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






4. Covalent bonds






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






6. The transfer of electrons.






7. 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.






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






9. Contains optic lobes - controls sight.






10. The phylum of insects (bees).






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






12. 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






13. Is the waxy protective outer coating of leaves.






14. An enzyme is unaffected by the reactions it catalyzes






15. Allows for the genetic code to be preserved in future generations of cells.






16. 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.






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






18. 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






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






20. Refers to the birthrate of a population.






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






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






23. The class composed of birds.






24. Includes all living and nonliving components of the Earth to support living things.






25. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






26. Respiratory organs within insects






27. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






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






29. The vocal cords are found in the larynx.






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






31. Plants and animals obtain usable nitrogen






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






33. 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






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






35. Controls olfactory lobes (smell)






36. Develops from the morula as a thin layer of cells surrounding an internal cavity.






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






38. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






39. Some enzymes contain a __________ component that is essential to their functions.






40. 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.






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






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






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






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






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






46. 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.






47. 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






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






49. Are the organelles where cellular respiration occurs.






50. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).