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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. 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






3. Protein synthesis






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






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






6. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






7. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






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






9. 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.






10. Most fossils of Hominids are from continents other than...






11. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






12. Layer that will become the gut lining as well as some accessory structures.






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






14. 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.






15. 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






16. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






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






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






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






20. Channels is cell membranes that carry water between cells.






21. The individual we recognize as an adult fern.






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






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






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






25. In both living and non-living environments.






26. In DNA Thymine pairs with...






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






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






29. Plants and animals obtain usable nitrogen






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






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






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






33. Respiratory organs within insects






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






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






36. Is the organelle where cellular reproductive processes occur.






37. The pituitary gland.






38. Must be present for photosynthesis to occur - it is not used up in the process.






39. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






40. Ended with the extinction of the dinosaurs.






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






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






43. The large brain and upright posture of Homo Sapiens...






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






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






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






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






48. Is the outermost of the three main layers of an embryo.






49. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






50. 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.