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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. The pituitary gland.






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






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






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






5. Inorganic phosphate






6. 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).






7. Stood upright before there was an increase in brain size.






8. Subsets below the kingdom level






9. 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






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






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






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






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






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






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






16. Engages in both passive and active transport.






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






18. Is a special protein that acts as a catalyst for organic reactions.






19. 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






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






21. In both living and non-living environments.






22. Ended with the extinction of the dinosaurs.






23. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






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






25. Contains many genes and is a structure comprised of linear DNA and associated proteins.






26. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






27. Cleave strands of DNA segments at certain sites.






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






29. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






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






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






32. 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.






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






34. Disease causing






35. Contains optic lobes - controls sight.






36. 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.






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






38. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






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






40. The phyla of sponges.






41. The role played by an organism in its food chain.






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






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






44. All store energy within their chemical bonds.






45. Synthesis






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






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






48. An enzyme is unaffected by the reactions it catalyzes






49. Protein synthesis






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