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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. 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.






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






3. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






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






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






6. Protein synthesis






7. Engages in both passive and active transport.






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






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






10. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






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






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






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






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






15. Mitochondria - they constitute the center of cellular respiration.

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16. In DNA Guanine pairs with...






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






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






19. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






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






21. Contains optic lobes - controls sight.






22. Is the waxy protective outer coating of leaves.






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. 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






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






26. The number of organisms in a given community - can be above or below the carrying capacity.






27. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






28. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






29. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






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






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






32. Cleave strands of DNA segments at certain sites.






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






34. 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.






35. Anabolism






36. Controls hunger and thirst






37. Controls olfactory lobes (smell)






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






39. 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).






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






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






42. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






43. Is found on the stem between nodes.






44. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






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






46. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






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






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






49. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






50. 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.