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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. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






2. Is a phylum that contains sponges.






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






4. An enzyme is unaffected by the reactions it catalyzes






5. The individual we recognize as an adult fern.






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






7. Is the number of organisms that can be supported within a particular ecosystem.






8. Engages in both passive and active transport.






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






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






11. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






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






13. 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.






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






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






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






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






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






19. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






20. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






21. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






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






23. Is a kingdom that includes algae and protozoa.






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






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






26. 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






27. Protein synthesis






28. Enzymes are usually __________ to certain reactions.






29. What phylum are snakes in?






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. In DNA Thymine pairs with...






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






33. All store energy within their chemical bonds.






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






35. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






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






37. The sharp boundary of an ecosystem.






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






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






40. The pituitary gland.






41. 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.






42. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






43. Plants and animals obtain usable nitrogen






44. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






45. 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.






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






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






48. 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.






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






50. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.