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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 found on the stem between nodes.






2. 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.






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






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






5. Is a kingdom that includes algae and protozoa.






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






7. 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.






8. Is the waxy protective outer coating of leaves.






9. 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.






10. Controls olfactory lobes (smell)






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






12. Enzymes are usually __________ to certain reactions.






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






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






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






16. Is the organelle where cellular reproductive processes occur.






17. (of some plants or fungi) feeding on dead or decaying organic matter






18. 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.






19. 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.






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






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






22. In DNA Guanine pairs with...






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. 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






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






26. Controls hunger and thirst






27. 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






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






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






30. What phylum are snakes in?






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






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






33. Subsets below the kingdom level






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






35. 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).






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






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






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






39. 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.






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






41. 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.






42. Breaking down






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






44. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






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






46. Develops from the morula as a thin layer of cells surrounding an internal cavity.






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






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






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






50. Contains optic lobes - controls sight.