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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. 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.






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






3. Controls balance and muscle coordination






4. Are the organelles where cellular respiration occurs.






5. 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.






6. 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






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






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






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






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






11. Refers to the birthrate of a population.






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






13. 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






14. Cleave strands of DNA segments at certain sites.






15. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






16. Plants and animals obtain usable nitrogen






17. Protein synthesis






18. Is a molecule that stores information for protein synthesis and genetic coding.






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






20. The phylum of insects (bees).






21. Covalent bonds






22. The preservation of the integrity of genetic information from one generation to another.






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






24. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






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






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






27. Super-class of vertebrae including organisms with jaws.






28. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






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. Decomposition of living matter for consumption.






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






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






33. The phyla of round worms.






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






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






36. 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






37. Is found in the root cap and is responsible for quick growth in the roots.






38. The destruction of gametes - (sex cells such as sperm and eggs).






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






40. Anabolism






41. Most fossils of Hominids are from continents other than...






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






43. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






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






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






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






47. 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.






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






49. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






50. The pituitary gland.