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






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






3. Are the organelles where cellular respiration occurs.






4. Is a kingdom that includes algae and protozoa.






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






6. The systematic search for individuals with a specific genotype in a delineated population.






7. 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.






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






9. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






10. An orienting response to light.






11. The transfer of electrons.






12. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






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






14. The individual we recognize as an adult fern.






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






16. Is found on the stem between nodes.






17. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






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






19. The pituitary gland.






20. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






21. The size of a cell is limited by the ratio of its surface area to volume.






22. Refers to the birthrate of a population.






23. In both living and non-living environments.






24. Respiratory organs within insects






25. 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






26. Ended with the extinction of the dinosaurs.






27. 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.






28. Is disorganized - unravelled - DNA with histones attached.






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






30. 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






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






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






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






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






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






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






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






38. 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.






39. Is the sugar that lactase acts upon.






40. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






41. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






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

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43. Is the waxy protective outer coating of leaves.






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






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






46. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






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






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






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






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