Photosynthesis：练习题

• a.By active transport through the guard cells into the palisade mesophyll.
• b.By diffusion through the stomata into the intercellular air spaces of the spongy mesophyll.
• c.By transpiration pull through the xylem vessels from the roots.
• d.By osmosis through the cuticle of the upper epidermis.

• a.The rate of bubble production increases as the distance from the light source decreases, until another factor becomes limiting.
• b.The rate of bubble production remains constant regardless of the light intensity.
• c.The rate of bubble production increases linearly with light intensity without ever reaching a plateau.
• d.The rate of bubble production decreases as the light intensity increases.

• a.Chlorophyll absorbs carbon dioxide and converts it into oxygen and glucose.
• b.Chlorophyll facilitates the diffusion of water from the xylem to the mesophyll cells.
• c.Chlorophyll acts as an enzyme to speed up the breakdown of glucose into energy.
• d.Chlorophyll absorbs light energy and converts it into chemical energy for the formation of carbohydrates.

• a.\(C_{6}H_{12}O_{6} + 6O_{2} \rightarrow 6CO_{2} + 6H_{2}O\)
• b.\(6CO_{2} + 6H_{2}O + \text{light energy} \rightarrow C_{6}H_{12}O_{6} + 6O_{2}\)
• c.\(6CO_{2} + 12H_{2}O \rightarrow C_{6}H_{12}O_{6} + 6O_{2} + 6H_{2}O\)
• d.\(6CO_{2} + 6H_{2}O \rightarrow C_{6}H_{12}O_{6} + 6O_{2}\)

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。