Biology

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Across
  1. 2. What molecule is the main chemical energy currency produced during cell respiration?
  2. 5. Which specific tissue in a leaf is adapted for maximum light absorption and photosynthesis?
  3. 7. What is the name of the carbohydrate used for energy storage in animals and fungi?
  4. 8. What type of pathogen causes influenza?
  5. 11. Which organelle is the site of aerobic respiration?
  6. 13. Which biological catalyst lowers the activation energy of metabolic reactions?
  7. 14. Which chemical element is found in proteins but *not* in carbohydrates or lipids?
  8. 15. In which specific structure of the human lungs does gas exchange take place?
Down
  1. 1. What toxic waste product is produced by yeast during anaerobic respiration?
  2. 3. Which muscular structure contracts and flattens to increase thorax volume during inhalation?
  3. 4. What pigment traps light energy inside a chloroplast?
  4. 6. What term describes an organism that feeds on dead or decaying organic matter by secreting extracellular enzymes?
  5. 9. What is the term for the mechanism used by cells to move substances against a concentration gradient using energy?
  6. 10. What substance is used to test for the presence of starch, turning from brown to blue-black?
  7. 12. What is the term for the movement of water molecules from an area of high water potential to an area of low water potential across a partially permeable membrane?