Traditional Culture Encyclopedia - Weather forecast - On a sunny summer day
On a sunny summer day
(2) Considering the breathing process, the substance gas represented by ① in the figure (1) enters the blade, which should be oxygen, and ② is the gas released by the blade, which must be carbon dioxide. The respiratory part is mitochondria, so the physiological process is completed in the mitochondria of cells. Breathing is always going on, not limited by light, so it can be judged that curve B in Figure (2) represents breathing; The curve nails basically stopped moving before 6 o'clock and after 18 o'clock, indicating that the nails were obviously affected by light, which should be photosynthesis.
(3) Considering the process of transpiration, (2) the substance represented is water vapor, which is not only a window for gas exchange, but also a gateway for water loss.
So the answer is:
(1) carbon dioxide; Oxygen; chloroplast
(2) oxygen; Carbon dioxide; Mitochondria; b； A.
(3) water vapor; air hole
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