AP BIOLOGY

Detailed explanation-1: -The stem arranges the branches and leaves in a way that all the leaves get enough sunlight to carry out photosynthesis. It is responsible for carrying minerals, water, and glucose to different parts of the plant. When the stems are green, they may contain chloroplasts and perform photosynthesis.

Detailed explanation-2: -The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.

Detailed explanation-3: -Botanically, leaves are an integral part of the stem system. They are attached by a continuous vascular system to the rest of the plant so that free exchange of nutrients, water, and end products of photosynthesis (oxygen and carbohydrates in particular) can be carried to its various parts.

Detailed explanation-4: -The stem supports the plant above ground, and carries the water and minerals to the leaves. The leaves collect energy from the Sun and make food for the plant, using an amazing process called photosynthesis.

Detailed explanation-5: -A stem performs the following functions in a plant: (i) It supports branches, leaves, flowers, and fruits. (ii) It transports water and minerals from the roots to the leaves and other parts of plants. (iii) It transports food from leaves to different parts of the plant.