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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. 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.






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






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






4. 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).






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






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






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






8. Subsets below the kingdom level






9. Disease causing






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






11. 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.






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






13. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






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






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






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






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






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






19. 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.






20. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






21. Layer that will become the skin - some endocrine glands - and the nervous system.






22. The phyla of round worms.






23. The class composed of birds.






24. Niche






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






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






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






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






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






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






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






32. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






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






34. Are cells involved in immunity and are produced in bone marrow as stem cells.






35. 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.






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






37. Inorganic phosphate






38. In DNA Thymine pairs with...






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






40. Contains optic lobes - controls sight.






41. Is the sugar that lactase acts upon.






42. The preservation of the integrity of genetic information from one generation to another.






43. What phylum are snakes in?






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






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






46. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






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






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






49. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






50. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.