Biology Review

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Across
  1. 2. Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
  2. 6. Process by which the sequence of bases of an mRNA is converted into the sequence of amino acids of a protein
  3. 8. Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
  4. 9. Formation of a new species
  5. 14. When comparing two solutions, the solution with the greater concentration of solutes
  6. 16. Fertilized egg
  7. 18. Dissolving substance in a solution
  8. 19. Process of reproduction involving a single parent that results in offspring that are genetically identical to the parent
  9. 20. Mass of rapidly dividing cells that can damage surrounding tissue
  10. 21. Protein catalyst that speeds up the rate of a specific biological reaction
  11. 22. Diffusion of water through a selectively permeable membrane
  12. 24. Negatively charged particle; located in the space surrounding the nucleus
  13. 27. Error in meiosis in which the homologous chromosomes fail to separate properly
  14. 29. Cell organelle that breaks down polymers into small molecules that can be used by the rest of the cell
  15. 30. Principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
  16. 32. Second stage of cellular respiration in which pyruvate is broken down into carbon dioxide in a series of energy-extracting reactions.
  17. 33. Having two different alleles for a particular gene
  18. 34. Property of biological membranes that allows some substances to pass across it while others cannot
Down
  1. 1. Group of three nucleotide bases in mRNA that specify a particular amino acid to be incorporated into a protein
  2. 2. One of two identical "sister" parts of a duplicated chromosome
  3. 3. Specific characteristic of an individual
  4. 4. Unicellular organism that lacks a nucleus
  5. 5. Cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell; the site of protein synthesis
  6. 7. Process of copying DNA prior to cell division
  7. 10. Situation in which one allele is not completely dominant over another allele
  8. 11. Chemical or physical agents in the environment that interact with DNA and may cause a mutation
  9. 12. Process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches
  10. 13. Saclike photosynthetic membranes found in chloroplasts
  11. 15. The combination of chemical reactions through which an organism builds up or breaks down material
  12. 17. Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
  13. 20. Phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin
  14. 23. Type of bond between atoms in which the electrons are shared
  15. 25. Structure that is inherited from ancestors but has lost much or all of its original function
  16. 26. Lower chamber of the heart that pumps blood out of heart to the rest of the body
  17. 28. Synthesis of an RNA molecule from a DNA template
  18. 31. Process that does not require oxygen