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






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






3. Covalent bonds






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






5. 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.






6. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






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






8. 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.






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






10. 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.






11. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






12. 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.






13. Is a coenzyme required in the synthesis of collagen.






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






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






16. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






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






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






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






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






21. 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






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






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






25. 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.






26. Some energy is lost as heat and becomes unusable.






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






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






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






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






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






32. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






33. Channels is cell membranes that carry water between cells.






34. Protein synthesis






35. Plants and animals obtain usable nitrogen






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






37. Disease causing






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






39. The phyla composed of segmented worms.






40. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






41. Contains many genes and is a structure comprised of linear DNA and associated proteins.






42. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






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






44. The phyla of round worms.






45. Is the sugar that lactase acts upon.






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






47. This is a carboxyl group and is the signature group found within organic acids.






48. Breaking down






49. The class composed of birds.






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







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