Photosynthesis and Respiration

2. A protective layer that covers the outermost tissue layer of a plant leaf.
3. A diagram that shows the biomass at each trophic level. It is always a pyramid shape. Trophic level 1 is at the bottom of the pyramid.
11. A plant tissue that contains large air spaces and has a large surface area for diffusion.
12. A cell which controls the opening and closing of the stomata.
13. A description of the position of an organism within the food chain.
16. A carbohydrate made by plants to store glucose.
19. An endothermic reaction in which energy is transferred from the environment to chloroplasts by light. It is represented by the equation: carbon dioxide + water  glucose + oxygen
21. Respiration that takes place without oxygen to transfer energy. In muscles it is represented by the equation: glucose  lactic acid In plant and yeast cells it is represented by the equation: glucose  ethanol + carbon dioxide
23. A representation of the feeding relationships within a community.
24. A plant tissue that contains lots of chloroplasts to carry out photosynthesis.

1. A green pigment inside chloroplasts which absorbs light energy.
4. A structure in plant cells that contains the pigment chlorophyll which absorbs light so the plant can carry out photosynthesis.
5. Respiration that involves the use of oxygen to transfer energy. It is represented by the equation: glucose + oxygen  carbon dioxide + water
6. Small openings in the surface of a leaf that allow gases to diffuse in and out of the leaf.
7. Drooping through lack of water.
8. Enlarged and swollen with water.
9. A yellow liquid that changes colour to dark blue/black in the presence of starch
10. The process of breaking down sugars by anaerobic respiration in bacteria or yeast, important in the manufacture of bread and alcoholic drinks.
14. The amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.
15. A structure inside cells where aerobic respiration occurs; a process which releases energy for the cell.
17. The waste product of anaerobic respiration in muscles.
18. The mass of living material of an organism. This will include all of the proteins, carbohydrates and lipids that make up that organism. It does not include the water content.
20. A diagram that shows the total number of individual organisms at each trophic level.
22. Tired.