Practice free Plant Anatomy Plant Tissues (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following element of xylem is living
Xylem parenchyma is the only living component in the xylem tissue. It plays a crucial role in the storage of nutrients and water, as well as the lateral transport of water and minerals.
Safranin stains.
Safranin is a biological stain used for coloring lignified cells. Lignin is a complex organic polymer found in the cell walls of many plants, making them rigid and woody. Safranin stains these cells red, which helps in identifying lignified tissues under a microscope.
Radial V.B. are found in
Radial vascular bundles are typically found in roots. In radial vascular bundles, the xylem and phloem are arranged in an alternating manner on different radii. This arrangement is common in the roots of dicot and monocot plants, helping in the efficient transport of water, nutrients, and food.
Cucurbita stem shows
Cucurbita stem shows bicollateral vascular bundles which produce outer and inner phloem but intraxylary phloem is absent.
In monocot leaves, the mesophyll Consists of
Exarch condition of xylem is found only in
The exarch condition of xylem, where the protoxylem is located towards the periphery and metaxylem towards the center, is typically found in roots. This arrangement is essential for the conduction of water and nutrients from the soil to the rest of the plant.
Endodermis is always absent in
Endodermis is a layer of cells that is typically present in roots and helps in regulating the flow of water and minerals into the vascular tissue. It is usually absent in monocot stems, which lack this specialized layer.
Which tissue is called a living mechanical tissue
Collenchyma is called a living mechanical tissue because it provides support to growing parts of the plant while being flexible and living. Its cells have thickened cell walls which help in mechanical support without impeding growth.
Collenchyma Shows deposition of
Collenchyma cells are characterized by the deposition of pectin and hemicellulose in their cell walls. This deposition provides flexibility and mechanical support to the plant, especially in areas of growth.
In Which tissue deposition is seen outside the cells ?
In collenchyma tissue, the thickening of the cell walls occurs due to the deposition of cellulose, hemicellulose, and pectin, which happens only at the corners of the cells. This results in the cells being thickened at the edges and provides mechanical support without restricting growth.
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