21.In grammatically correct sentences, trace the path of the products of photosynthesis as they exit the leaf. Extension Questions 30. Plants that live on the floor of forests tend to have much larger leaves than plants that live in hot, sunny conditions. Offer an explanation for this in which you refer to specific parts of the internal structure of a leaf. 31. Cacti are plants that live in extremely dry environments. Unlike most other plants, cacti do not have regular leaves, but instead have spines. They do have green stems.How would the lack of regular leaves help cacti survive in their environment?In what part of the cacti would photosynthesis occur?

## Step 1<br />The first question is about the path of the products of photosynthesis as they exit the leaf. Photosynthesis is a process that converts light energy, usually from the sun, into chemical energy that can be later released to fuel the organisms' activities. This process occurs in the chloroplasts of plant cells, which are located in the leaves. The products of photosynthesis are glucose and oxygen. The glucose is used by the plant for growth and development, while the oxygen is released into the atmosphere.<br /><br />## Step 2<br />The second question asks for an explanation of why plants that live on the floor of forests tend to have larger leaves than plants that live in hot, sunny conditions. This is due to the fact that plants on the forest floor receive less sunlight than those in sunny conditions. Therefore, they need larger leaves to absorb as much light as possible for photosynthesis.<br /><br />## Step 3<br />The third question asks how the lack of regular leaves helps cacti survive in their environment and where photosynthesis occurs in cacti. Cacti live in extremely dry environments, and the lack of regular leaves helps them survive by reducing water loss through transpiration. Photosynthesis in cacti occurs in the green stems, which are adapted to absorb sunlight and perform photosynthesis.