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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. Refers to the birthrate of a population.






2. 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.






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






4. 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.






5. Is found on the stem between nodes.






6. Niche






7. The pituitary gland.






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






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






10. Decomposition of living matter for consumption.






11. 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.






12. 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.






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






14. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






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






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






17. Enzymes are usually __________ to certain reactions.






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






19. Inorganic phosphate






20. 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.






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






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






23. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






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






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






26. Controls hunger and thirst






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






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






29. The sharp boundary of an ecosystem.






30. Process of breaking down complex materials (foods) to form simpler substances and release energy.






31. Is the waxy protective outer coating of leaves.






32. Controls olfactory lobes (smell)






33. 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






34. The class composed of birds.






35. All store energy within their chemical bonds.






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






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






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






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






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






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






42. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.






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






44. Controls balance and muscle coordination






45. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






46. It secretes saliva which enters the digestive tract and aids the digestive process.






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






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






49. The individual we recognize as an adult fern.






50. 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.