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






2. 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.






3. The pituitary gland.






4. Ended with the extinction of the dinosaurs.






5. Respiratory organs within insects






6. 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.






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






8. Enzymes are usually __________ to certain reactions.






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






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






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






12. The phylum of insects (bees).






13. 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).






14. High temperatures






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






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






17. 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.






18. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






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






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






21. 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.






22. Cleave strands of DNA segments at certain sites.






23. 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.






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






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






26. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






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






28. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






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






30. 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






31. 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.






32. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






33. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






34. A hydrogen bond involves the ________________ and can be easily broken.






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






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






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






38. All store energy within their chemical bonds.






39. Refers to the birthrate of a population.






40. 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






41. Covers and protects the leaf.






42. Plants and animals obtain usable nitrogen






43. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






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






45. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






46. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






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






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






49. 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.






50. Decomposition of living matter for consumption.







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