Test your basic knowledge |

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






2. Must be present for photosynthesis to occur - it is not used up in the process.






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






4. Is a substance that changes the speed of a reaction without being affected itself.






5. Includes all living and nonliving components of the Earth to support living things.






6. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






7. 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.






8. In DNA Guanine pairs with...






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






10. 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.






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






12. High temperatures






13. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






14. The individual we recognize as an adult fern.






15. Ended with the extinction of the dinosaurs.






16. Synthesis






17. 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.






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






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






20. What phylum are snakes in?






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






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






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






24. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






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






26. Some enzymes contain a __________ component that is essential to their functions.






27. Controls hunger and thirst






28. Covers and protects the leaf.






29. Is the waxy protective outer coating of leaves.






30. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






31. 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






32. The vocal cords are found in the larynx.






33. 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.






34. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






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






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






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






38. Inorganic phosphate






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

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






41. The role played by an organism in its food chain.






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






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






44. Decomposition of living matter for consumption.






45. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






46. 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.






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






48. Contains optic lobes - controls sight.






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






50. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side