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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. Engages in both passive and active transport.






2. In DNA Thymine pairs with...






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






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






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






6. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






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






8. 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.






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






10. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






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






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






13. The class composed of birds.






14. 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






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






16. Is found on the stem between nodes.






17. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






18. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






19. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






20. Controls olfactory lobes (smell)






21. The vocal cords are found in the larynx.






22. 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.






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






24. Synthesis






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






26. Plants and animals obtain usable nitrogen






27. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






28. Is a kingdom that includes algae and protozoa.






29. 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.






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






31. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






32. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






33. The phyla of sponges.






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






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






36. An orienting response to light.






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






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






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






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






41. The phyla of round worms.






42. 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.






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






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






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






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






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






48. The pituitary gland.






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






50. 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.