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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 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).






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






3. 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






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






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






6. Is disorganized - unravelled - DNA with histones attached.






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






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






9. Algae and Protozoa belong to the kingdom...






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






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






12. The class composed of birds.






13. Enzymes are usually __________ to certain reactions.






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






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






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






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






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






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






20. Are the organelles where cellular respiration occurs.






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






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






23. Is a kingdom that includes algae and protozoa.






24. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






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






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






27. Are cells involved in immunity and are produced in bone marrow as stem cells.






28. The pituitary gland.






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






30. Covalent bonds






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






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






33. Carbon - Hydrogen - Oxygen - and Nitrogen






34. 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.






35. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






36. Is a phylum that contains sponges.






37. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






38. 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.






39. Synthesis






40. Inorganic phosphate






41. In DNA Thymine pairs with...






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






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






44. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






45. Anabolism






46. 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.






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






48. 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






49. An enzyme is unaffected by the reactions it catalyzes






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






Can you answer 50 questions in 15 minutes?



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