Biology

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Across
  1. 2. it is proteins produced by white blood cells called lymphocytes
  2. 3. it is the net movement of molecules and ions from region of their higher concentration to a region of their lower concentration down a concentration gradient as a result of their random movement
  3. 5. the ability to detect or sense stimuli in the internal or external environment and to make appropriate responses
  4. 9. it is the movement of small food molecules and ions through the wall of the intestine into the blood
  5. 11. it is a protein that functions as a biological catalyst
  6. 12. it is a fluid filled space surrounded by a membrane which is found inside the cyptoplasm of plant cells to help to keep plants cells firm
  7. 13. it is the net movement of waterr molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane
  8. 14. it is the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells.
Down
  1. 1. it is the process by which plants manufacture carbohydrates from raw materials using the energy from light.
  2. 4. fats are a solid form of a group of molecules is called.....
  3. 6. it is a solution to test for starch
  4. 7. it is a substances that increases the rate of a chemical reaction and is not changed by the reaction
  5. 8. a group of organisms that can reproduce to produce fertile offspring
  6. 10. structure made up of a group of tissues, working together to perfrom a specific function