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






2. 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.






3. The phylum of insects (bees).






4. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






5. Carbon - Hydrogen - Oxygen - and Nitrogen






6. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






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






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






9. Enzymes are usually __________ to certain reactions.






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






11. Is the waxy protective outer coating of leaves.






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






13. Is the outermost of the three main layers of an embryo.






14. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






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






16. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






17. 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






18. Disease causing






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






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






21. The pituitary gland.






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






23. 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.






24. In DNA Thymine pairs with...






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






26. Covalent bonds






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






28. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






29. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






30. Is found on the stem between nodes.






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






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






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






34. 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).






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






36. 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.






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






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






39. Contains optic lobes - controls sight.






40. The transfer of electrons.






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






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






43. Subsets below the kingdom level






44. 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.






45. 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.






46. When the water concentration inside and outside the cell is equal - It is said to be in an...






47. Must be present for photosynthesis to occur - it is not used up in the process.






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






49. Covers and protects the leaf.






50. Is the sugar that lactase acts upon.