1. Photosynthesis is the process by which plants use sunlight to convert water and carbon dioxide into oxygen and glucose.
光合作用是植物利用阳光将水和二氧化碳转化为氧气和葡萄糖的过程。

2. Without photosynthesis, plants would not be able to produce energy and grow.
没有光合作用，植物就无法产生能量和生长。

3. The chloroplasts in plant cells are responsible for carrying out photosynthesis.
植物细胞中的叶绿体负责进行光合作用。

4. Photosynthesis plays a crucial role in the Earth's ecosystem by producing oxygen for animals to breathe.
光合作用通过为动物提供呼吸氧气在地球生态系统中发挥着关键作用。

5. Scientists study photosynthesis to better understand how plants produce food and oxygen.
科学家研究光合作用，以更好地了解植物如何产生食物和氧气。

6. The efficiency of photosynthesis can be affected by factors such as light intensity and temperature.
光合作用的效率可能会受到光强和温度等因素的影响。