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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 a coenzyme required in the synthesis of collagen.






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






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






4. Covers and protects the leaf.






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






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






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






8. 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.






9. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






10. 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






11. 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.






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






13. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






14. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






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






16. Are the organelles where cellular respiration occurs.






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






18. 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.






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






20. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






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






22. Is a kingdom that includes algae and protozoa.






23. Is the organelle where cellular reproductive processes occur.






24. The individual we recognize as an adult fern.






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






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






27. The class composed of birds.






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






29. The phyla of sponges.






30. 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.






31. All store energy within their chemical bonds.






32. Some energy is lost as heat and becomes unusable.






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






34. 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.






35. Carbon - Hydrogen - Oxygen - and Nitrogen






36. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






37. In DNA Guanine pairs with...






38. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






39. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






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






42. 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






43. 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.






44. Enzymes are usually __________ to certain reactions.






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






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






47. An orienting response to light.






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






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






50. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.