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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 the waxy protective outer coating of leaves.






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






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






4. Is found on the stem between nodes.






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






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






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






8. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






9. 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.






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






11. The pituitary gland.






12. Plants and animals obtain usable nitrogen






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






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






15. Absorb a photon of light and is found in the grana of the chloroplast.






16. Controls olfactory lobes (smell)






17. 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.






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






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






20. Breaking down






21. Enzymes are usually __________ to certain reactions.






22. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






23. 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






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






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






26. Transfers water and does not require sieve plates to allow nutrients through.






27. 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.






28. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






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






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






31. In both living and non-living environments.






32. Inorganic phosphate






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






34. Nonvascular plants such as mosses which lack tissue for conducting food or water.






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






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






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






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






39. Covalent bonds






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






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






43. All store energy within their chemical bonds.






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






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






46. 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.






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






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






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






50. 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







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