what is function of stem
Answers
Answer:
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.
Question :
- What is the Function of Stem
Solution :
Functions of the Stem
The stem carries water and dissolved mineral salts from the roots to the leaves.
It also carries food from the leaves to other parts of the plant.
It supports the weight of the branches, leaves, flowers and fruits.
It holds the leaves in such a way that they are exposed to maximum sunlight for carrying out photosynthesis.
The stems of young plants are green and prepare food through photosynthesis.
Modification of the stem
In plants such as the bean, sweet potato and morning glory, the stem spirals around a support, as it is weak and slender. These stems are known as climbers or twiners. In some plants with weak stem, such as passion flower the stem having long, thread - like coiling branches that are called stem tendrils. They have the plant to climb by holding on to an object and provide support.
In plants such as cacti that grow in dry climates, the leaves are reduced to spines or scales to prevent loss of water. Such plants have flattened or cylindrical green stems to make food. The stem also stores food and water for the plant.
In some plants the entire stem remains underground and only the leaves and branches are seen above the ground. Food is stored in the thick stems which helps the plant survive the long dry seasons. Ginger, potato and yam are some examples of plants where food is stored in the stems.
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