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Parenchyma: Permanent Tissues Video Lecture - NEET

FAQs on Parenchyma: Permanent Tissues Video Lecture - NEET

1. What is the function of parenchyma in plant tissues?
Ans. Parenchyma is a type of permanent tissue in plants that serves various functions. It is responsible for photosynthesis, storage of nutrients, and secretion of substances. Additionally, parenchyma cells provide support and act as a filler tissue in plant organs.
2. How do parenchyma cells differ from other types of plant cells?
Ans. Parenchyma cells are the most common and versatile type of plant cells. Unlike other cell types such as collenchyma and sclerenchyma, parenchyma cells have thin cell walls and retain the ability to divide. They also possess large vacuoles and a prominent nucleus.
3. Can parenchyma tissues be found in all parts of a plant?
Ans. Yes, parenchyma tissues can be found in almost all parts of a plant, including stems, leaves, roots, and even fruits. They are present in the cortex and pith of stems, mesophyll of leaves, and the inner layers of the pericycle in roots, among other locations.
4. How does parenchyma tissue contribute to plant growth and development?
Ans. Parenchyma tissue plays a crucial role in plant growth and development. Its ability to divide allows for cell expansion and growth in plant organs. Additionally, parenchyma cells can differentiate into specialized cells, such as xylem and phloem, contributing to the formation of vascular tissues.
5. Can the structure of parenchyma cells vary in different plant species?
Ans. Yes, the structure of parenchyma cells can vary in different plant species. For example, in aquatic plants, parenchyma cells may contain large air spaces to aid in buoyancy. In succulent plants, parenchyma cells are modified to store water. The shape and arrangement of parenchyma cells can also differ based on their specific function within a plant organ.
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