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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 disorganized - unravelled - DNA with histones attached.






2. (of some plants or fungi) feeding on dead or decaying organic matter






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






4. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






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






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






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






8. 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.






9. Is the outermost layer of cells of the stem.






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






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






12. The class composed of birds.






13. What phylum are snakes in?






14. Are the organelles where cellular respiration occurs.






15. The phyla of sponges.






16. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






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






18. Plants and animals obtain usable nitrogen






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

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20. 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






21. 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.






22. 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.






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






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






25. 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






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






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






28. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






29. 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






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






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






32. An orienting response to light.






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






34. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






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






36. 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






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






38. Is the process that releases energy for use by the cell.






39. Process of breaking down complex materials (foods) to form simpler substances and release energy.






40. 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).






41. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






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






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






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






45. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






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






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






49. An enzyme is unaffected by the reactions it catalyzes






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