Cell Biology Vocabulary

Edit Answers
1234567891011121314151617181920212223242526
Across
  1. 3. Measure of how acidic or basic a substance is (1-14)
  2. 5. Chemical process where mitochondria break down food molecules to produce ATP
  3. 7. Feature of the plasma membrane that maintains homeostasis within a cell by allowing some molecules in
  4. 9. Proteins that span the plasma membrane creating a selectively permeable membrane
  5. 11. Flexible boundary between the cell and it's environment
  6. 12. Smallest particle of an element that has the characteristics of that element; basic building block of life
  7. 13. Any substance that forms hydrogen ions (H+) in water and has a pH below 7
  8. 14. Structural model of plasma membrane where molecules are free to move sideways within lipid bilayers
  9. 16. Process by which autotrophs trap energy from sunlight with chlorophyll and use this energy to convert carbon dioxide and water into simple sugars
  10. 17. Anaerobic process in which cells convert pyruvic acid into carbon dioxide and ethyl alcohol
  11. 20. Chemical bond when two atoms share electrons
  12. 22. Molecule formed from the breaking off of a phosphate group for ATP
  13. 25. Substance that can't be broken down into simpler substances
  14. 26. Diffusion of water across a selectively permeable membrane creating a selectively permeable membrane
Down
  1. 1. Lipids with an attached phosphate group
  2. 2. Passive transport of materials across a plasma membrane by transport proteins embedded in the plasma membrane
  3. 4. Movement of particles across cell membranes by diffusion or osmosis
  4. 6. Series of anaerobic chemical reactions in which pyruvic acid uses NADH to form lactic acid and NAD+, which is used in glycosis
  5. 8. Energy storing molecule in cells composed of an adenosine molecule, a ribose sugar, and three phosphate groups
  6. 10. Active transport process by which materials are secreted or expelled
  7. 15. Chemical reactions that require the presence of oxygen
  8. 18. Active transport where a cell engulfs materials within a portion of the cell's plasma membrane
  9. 19. Any substance that forms hydroxide ions in water and has a pH above 7
  10. 21. Molecules that absorb wavelengths of sunlight
  11. 23. Energy expending process by which cells transport materials across the cell membrane
  12. 24. Chemical reactions that don't require oxygen