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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. Some energy is lost as heat and becomes unusable.






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






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






4. Veins in the leaf and are also distributed throughout the stem






5. Respiratory organs within insects






6. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






7. 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.






8. In DNA Guanine pairs with...






9. Inorganic phosphate






10. Engages in both passive and active transport.






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






12. An orienting response to light.






13. Controls hunger and thirst






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






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






16. Stood upright before there was an increase in brain size.






17. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






18. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






19. Cleave strands of DNA segments at certain sites.






20. Ended with the extinction of the dinosaurs.






21. Subsets below the kingdom level






22. 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).






23. 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.






24. In DNA Thymine pairs with...






25. The sharp boundary of an ecosystem.






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






27. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






28. 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






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






30. Synthesis






31. Contains optic lobes - controls sight.






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






33. 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






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






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






36. The process of forming eggs and sperm cells in the reproductive organs.






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






38. Enzymes are usually __________ to certain reactions.






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






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






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






42. 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.






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. Super-class of vertebrae including organisms with jaws.






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






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






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






48. 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






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






50. 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.







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