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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. Covalent bonds






2. Controls balance and muscle coordination






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






4. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






5. 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.






6. Disease causing






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






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






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






10. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






11. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






12. 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).






13. The transfer of electrons.






14. Inorganic phosphate






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






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






17. 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.






18. The individual we recognize as an adult fern.






19. 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.






20. Has loosely packed cells that allow for gas and moisture exchange.






21. Synthesis






22. 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.






23. The phyla of sponges.






24. Decomposition of living matter for consumption.






25. Is a packet of digestive enzymes that destroy cellular wastes.






26. 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






27. The phyla of round worms.






28. 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.






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






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






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






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






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






34. Controls hunger and thirst






35. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






36. 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.






37. The phyla composed of segmented worms.






38. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






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






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






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






42. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






43. Anabolism






44. The sharp boundary of an ecosystem.






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






46. 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.






47. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






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






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






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