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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. What phylum are snakes in?






2. 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.






3. Synthesis






4. 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.






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






6. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






7. The vocal cords are found in the larynx.






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






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






10. Covers and protects the leaf.






11. 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.






12. The phyla of sponges.






13. 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






14. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






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






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






17. Contains many genes and is a structure comprised of linear DNA and associated proteins.






18. The transfer of electrons.






19. Is a phylum that contains jellyfish - hydra - etc.






20. 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






21. Plants and animals obtain usable nitrogen






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






23. 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






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






25. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






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






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






28. Inorganic phosphate






29. 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.






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






31. 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






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






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






34. Is the sugar that lactase acts upon.






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






36. 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






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






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






39. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






40. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






41. High temperatures






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






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






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






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






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






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






48. The phylum of insects (bees).






49. An orienting response to light.






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







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