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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. 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.






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






3. 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






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






5. Is a phylum that contains sponges.






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






7. Is the organelle where cellular reproductive processes occur.






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






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






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






11. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






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






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






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






15. An enzyme is unaffected by the reactions it catalyzes






16. Controls olfactory lobes (smell)






17. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






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






19. The phyla of sponges.






20. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






21. Breaking down






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






23. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






24. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






25. Is a phylum that contains jellyfish - hydra - etc.






26. The class composed of birds.






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






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






29. The total amount of genetic information available for a given species.






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






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






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






33. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






34. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






35. The pituitary gland.






36. An orienting response to light.






37. Is weaker than ionic - covalent - disulfide - or double bonds.






38. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






39. 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).






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






41. In DNA Guanine pairs with...






42. Controls balance and muscle coordination






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






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






45. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






46. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






47. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






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






49. Carbon - Hydrogen - Oxygen - and Nitrogen






50. Respiratory organs within insects