Biology Review

123456789101112131415161718192021222324252627282930
Across
  1. 2. Something put into a system
  2. 5. Take away or alter qualities
  3. 9. An arrangement or organization of parts to form a system
  4. 10. A new cell that is produced from cell devision
  5. 11. A purpose intended for a person or thing
  6. 13. Process that breaks Down organic molecules into simpler substances
  7. 15. Oxygen used to make energy from carbohydrates
  8. 21. Self regulating process where biological systems maintain stability while adjusting to conditions
  9. 26. Process by which DNA makes a copy of itself
  10. 27. Energy production in a cell without oxygen
  11. 28. Structures within a cell nucleus that contain DNA
  12. 29. Too much of one species
  13. 30. Specific sequences of DNA that code for proteins
Down
  1. 1. What comes out of a system
  2. 3. Weak attractions between the nitrogenous bases of the DNA strands
  3. 4. Organisms that obtain nutrients from consuming other organisms
  4. 6. an organism composed of many cells
  5. 7. Carries genetic blue print for living organisms
  6. 8. Substance that has a molecular structure consisting of a large number of similar units bonded together
  7. 12. A cell that devides to produce new cells
  8. 14. similar to DNA but usually single stranded
  9. 16. One species devides into more through evolution
  10. 17. Can be bonded to other identical molecules to form a polymer
  11. 18. When a single cell devides into two identical daughter cells
  12. 19. The same
  13. 20. Increases the rate of chemical reaction without undergoing any permanent chemical change
  14. 22. Organism that produces its own food
  15. 23. Flow of genetic information within a biological system
  16. 24. Having two complete sets of chromosomes in an organisms cells
  17. 25. A molecule that is produced by a living organism