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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. 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






2. Engages in both passive and active transport.






3. 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.






4. Niche






5. 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.






6. High temperatures






7. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






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






9. What phylum are snakes in?






10. Covers and protects the leaf.






11. 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).






12. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






13. 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.






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






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






16. Covalent bonds






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






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






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






20. Controls hunger and thirst






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






22. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






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






24. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






25. 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.






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






27. 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.






28. Contain one celled eukaryotes such as algae and protozoa.






29. Is the sugar that lactase acts upon.






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






31. 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.






32. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






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






34. Enzymes are usually __________ to certain reactions.






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






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






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






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






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






40. 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).






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






42. It secretes saliva which enters the digestive tract and aids the digestive process.






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






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






45. Is the organelle where cellular reproductive processes occur.






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






47. 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






48. 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.






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






50. An enzyme is unaffected by the reactions it catalyzes