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






2. Is the organelle where cellular reproductive processes occur.






3. 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).






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






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






6. 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






7. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






8. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






9. An enzyme is unaffected by the reactions it catalyzes






10. Ended with the extinction of the dinosaurs.






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






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






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






14. Controls balance and muscle coordination






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






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






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






18. The class composed of birds.






19. Protein synthesis






20. An orienting response to light.






21. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






22. 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






23. In DNA Thymine pairs with...






24. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






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






26. Decomposition of living matter for consumption.






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






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






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






30. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






32. What phylum are snakes in?






33. When the water concentration inside and outside the cell is equal - It is said to be in an...






34. Contains optic lobes - controls sight.






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






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






38. The phyla composed of segmented worms.






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






40. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






41. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






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






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






44. In both living and non-living environments.






45. 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.






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






47. Cleave strands of DNA segments at certain sites.






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






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






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