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






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






3. Is a kingdom that includes algae and protozoa.






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






5. 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.






6. Contain one celled eukaryotes such as algae and protozoa.






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






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






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






10. High temperatures






11. Synthesis






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






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






14. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






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






16. In DNA Thymine pairs with...






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






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






19. Breaking down






20. 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.






21. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






22. 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).






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






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






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






26. The vocal cords are found in the larynx.






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






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






29. Plants and animals obtain usable nitrogen






30. Carbon - Hydrogen - Oxygen - and Nitrogen






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

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32. The class composed of birds.






33. Is the sugar that lactase acts upon.






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






35. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






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






37. Is a coenzyme required in the synthesis of collagen.






38. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






40. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






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






42. 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.






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






44. Is weaker than ionic - covalent - disulfide - or double bonds.






45. 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






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






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






48. Inorganic phosphate






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






50. 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.







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