Unit 4

1. molecule involved in energy transfer within cells, acting as a precursor to ATP
3. obtain their food by consuming other organisms
7. the natural compound present in green plants that gives them their color
10. requires oxygen and produces significantly more energ
11. occurs without oxygen and yields less energy
13. a tiny opening or passageway in a surface, membrane, or structure, allowing for the passage of liquids, gases, or other substances
14. the primary energy-carrying molecule in cells
15. the process by which plants change the energy in sunlight to kinds of energy that can be stored for later use
16. the capacity or ability to do work or cause chang
19. an important heat-trapping gas, also known as a greenhouse gas

1. process where yeast, bacteria, or other microorganisms convert sugars into alcohol
2. produce their own food from inorganic sources
4. a simple sugar, the primary source of energy for the body's cells
5. process in which sugars are transformed into a new product through chemical reactions carried out by microorganisms
6. organelles found in plant cells that are responsible for photosynthesis
8. a chemical your body produces when your cells break down carbohydrates for energ
9. is the chemical reactions in the body's cells that change food into energy.
12. a series of chemical reactions that break down glucose to produce ATP
17. The cells and tissues that support and give structure to organs, glands, or other tissues in the body
18. an organic compound that gives color to plant or animal tissue