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Plants have many different tissues with specific function in different parts. They function together to provide food production and storage; give flexibility, support, and strength to the plants. The plant tissue includes meristematic tissue that involve in producing new cells throughout the lives of a plant, dermal tissue that is also considered as epidermis, it forms cuticles that help to reduce loss of water. Trichomes are the epidermal cells that are hairlike and produce in leaves and stems. It gives the leaves and stems a fuzzy appearance to provide protection against predators, it is also involved in maintaining the optimal temperature keep it cool. Root hairs are other epidermal cells that found in roots, this involve in the increasing the surface area of roots. The next is the vascular tissue involve in the transportation of nutrients, water, and other substances in plants. All the tissues are found in different parts of plants like roots, stems, and leaves.
Explanation of Solution
The leaves of plants are involved in the photosynthesis process and the structures of the leaves are such that it is well adapt to this function. The leaves have a flattened area that is termed as blade, it involves in providing the large surface area. The blades of the leaves are attached to the stem with the help of a stalk that is termed as petiole. The internal structure of a leaf consists of tightly packed cell found instant below the upper epidermis. This portion of the cell is highly exposed to the light; so, most of the photosynthesis process takes place in this cell. This cell has many chloroplasts and made up of palisade mesophyll tissue. Below the palisade layer spongy mesophyll tissue is found, that are rectangular in shape, and loosely packed. The oxygen, water vapor, and carbon dioxide pass through the space on the spongy mesophyll.
The cell where most of the photosynthesis process is takes place is composed of palisade mesophyll tissue. Below the palisade layer spongy mesophyll tissue is found, that are rectangular in shape, and loosely packed.
Chapter 22 Solutions
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