Which tissue is responsible for flexibility in plants and which cambium is responsible for the secondary growth is present in this stem?
I am not sure what do you mean.
Flexibility in a mechanical sense? Plant tissues are mostly flexible, it takes special tissues to limit that flexibility. Like sclerenchyma or wood.
Which stem? Did you try to post a photo?
Collenchyma tissues are composed of oval or prismatic cells that are commonly elongated and can occur in long strands or cylinders. Collenchyma tissue is specialized to provide flexibility to various parts of the plant like petiole and stem since they are none lignified. It allows for easy bending without breakage. Cartilage is a strong, flexible connective tissue that protects your joints and bones. It acts as a shock absorber throughout your body. Cartilage at the end of your bones reduces friction and prevents them from rubbing together when you use your joints. Parenchyma has thin walls of cellulose, whereas collenchyma have cell walls with thickened areas of additional cellulose. Sclerenchyma cells have lignified cell walls. They can be further categorized into narrow long cells (fibers) and cells of various other shapes (sclereids). Chlorenchyma is a specialized type of Parenchyma cells found in plants. It is responsible for storing chlorophyll. This chlorophyll is later used in photosynthesis and preparing starch. The differences between parenchyma and collenchyma cells are: The storage, secretion, and photosynthesis in the plants are carried out by Parenchyma cells. In contrast, the Collenchyma cells help transport and distribute various essential nutrients to all the parts of the plant. Collenchyma cells differ from sclerenchyma in retaining protoplasm at maturity. Sclerenchyma cells do not have protoplasm, while collenchyma cells possess protoplasm at maturity. Vascular cambium and cork cambium, also called secondary meristem, are responsible for secondary growth in plants. They increase the thickness of the plant body. The process of secondary growth is controlled by the lateral meristems in both stems and roots. Lateral meristems include the vascular cambium and, in woody plants, the cork cambium (cambium is another term for meristem). Cambium, plural Cambiums, orCambia, in plants, layer of actively dividing cells between xylem (wood) and phloem (bast) tissues that is responsible for the secondary growth of stems and roots (secondary growth occurs after the first season and results in increase in thickness). The lateral meristem tissues are responsible for the secondary growth of plants. The secondary growth of plants increase in stem thickness and it is due to the activity of the lateral meristems, which are absent in herbs or herbaceous plants.
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