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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. Enzymes are usually __________ to certain reactions.






2. High temperatures






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






4. Cleave strands of DNA segments at certain sites.






5. A hydrogen bond involves the ________________ and can be easily broken.






6. 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.






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






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






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






10. Is a substance that changes the speed of a reaction without being affected itself.






11. 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.






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






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






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






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






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






17. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






18. Synthesis






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






20. Disease causing






21. The large brain and upright posture of Homo Sapiens...






22. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






23. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






24. All store energy within their chemical bonds.






25. The phyla of round worms.






26. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






27. The transfer of electrons.






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






29. 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.






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






31. Are cells involved in immunity and are produced in bone marrow as stem cells.






32. Is a phylum that contains sponges.






33. 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.






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






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






36. 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.






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






38. Is a kingdom that includes algae and protozoa.






39. In DNA Guanine pairs with...






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






41. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






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






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






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






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






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






48. 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.






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






50. 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.