Life Science Vocab Review

Edit Answers
123456789101112131415161718192021222324252627
Across
  1. 1. ___ ____ is a chemical reaction where food and oxygen react to release usable energy for the body.
  2. 2. ___ are tiny blood vessels that collect oxygen from the alveoli and nutrients from the villi.
  3. 6. ___ the movement of particles from high to low concentration.
  4. 7. ___ is the flap that blocks your trachea when you swallow food.
  5. 10. The ___ _____ has a very large surface area to better absorb nutrients.
  6. 12. Hydrochloric acid and ____ chemically break down protein in the stomach.
  7. 15. This is the organelle (part of the cell) where cellular respiration takes place.
  8. 17. ___ reacts with oxygen to release ATP (energy).
  9. 20. The 300 million alveoli in your lungs have a very large __ ___ in order to absorb a lot of oxygen into the bloodstream.
  10. 22. ___ are structures in your mouth that mechanically break down food.
  11. 24. ___ breaks fat into tiny globules so that it can be further broken down by enzymes.
  12. 25. ___ occurs when particles move from higher concentration to lower concentration.
  13. 26. ___ is a type of diffusion that involves water moving across a membrane.
Down
  1. 1. After eating a cracker for several minutes you have noticed a change in taste. This is because the complex ___ are being broken down into glucose molecules.
  2. 3. The ____ is a passageway for air in the reproductive system. It holds the vocal cords.
  3. 4. The ___ system ingests, breaks down and absorbs nutrients.
  4. 5. ___ are tiny sacs in the lungs that collect oxygen and transfer to the bloodstream.
  5. 8. ___ is a passageway for air that is made of cartilage to prevent it from collapsing.
  6. 9. Nutrients are absorbed by these folds in the small intestine.
  7. 11. ___ contains mucus and enzymes which chemically break down complex carbohydrates in the mouth.
  8. 13. Cilia and __ ___ filter pollutants from the air when you breathe.
  9. 14. During cellular respiration ATP (energy), water and __ ___ are produced.
  10. 16. The ___ system transfers nutrients and oxygen to every cell in the body.
  11. 18. Osmosis requires a ____ but diffusion does not.
  12. 19. They ___ system takes in oxygen and outputs carbon dioxide.
  13. 21. ____ the movement of water across a membrane.
  14. 23. _____ speed up chemical reactions. An example includes amylase in your saliva.
  15. 27. ___ reacts with glucose to release ATP (energy).