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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 the waxy protective outer coating of leaves.






2. Controls balance and muscle coordination






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






4. 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






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






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






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






8. 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






9. High temperatures






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






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






12. 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.






13. Carbon - Hydrogen - Oxygen - and Nitrogen






14. In DNA Thymine pairs with...






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






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






17. Develops from the morula as a thin layer of cells surrounding an internal cavity.






18. Is found on the stem between nodes.






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






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






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






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






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






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






25. 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.






26. The transfer of electrons.






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






28. 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.






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






30. Allows for the genetic code to be preserved in future generations of cells.






31. 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






32. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






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






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






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






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






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






38. Cleave strands of DNA segments at certain sites.






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






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






41. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






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






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






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






45. The phylum of insects (bees).






46. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






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






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






49. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






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