Unknown 30 July at Anonymous 19 November at Unknown 27 February at Prabanya 1 March at Anonymous 7 March at Kenneth Anku 20 May at Abhik Ganguly 14 June at Anonymous 28 December at Anonymous 27 February at Anonymous 1 April at Unknown 1 September at Drx Manish Choudhary 15 March at Kusalaja 26 April at Unknown 9 October at Anonymous 24 October at In symplastic route, water moves through the protoplasts of the root cortex.
The main difference between apoplast and symplast is that apoplast is a fully permeable route in which the water movement occurs by passive diffusion whereas symplast is a selectively permeable route in which the water movement occurs by osmosis. What is Apoplast — Definition, Process, Characteristics 2.
What is Symplast — Definition, Process, Characteristics 3. The apoplast refers to the non-protoplasmic spaces of a plant. It includes the cell walls and the intracellular spaces. The apoplast of the root cortex is used for the movement of water to the xylem, which is absorbed by the root hair cells. This pathway is called the apoplastic pathway. The apoplastic pathway does not cross any cytoplasmic membrane at any time. That means the water moves through the passive diffusion.
Therefore, the apoplastic pathway shows the least resistance towards the movement of water. The lignosuberin Casparian strips present in the walls of the endodermic cells may interrupt the water movement through the apoplast. Then the water moves only through the symplastic pathway. The interruption of the water movement by the Casparian strips is shown in figure 1. Symplast refers to the protoplasmic components of a plant.
The protoplasms of the cells are connected by the cell junctions called plasmodesmata. The symplast of the root cortex is used for the movement of water from the root hair cells to the xylem of the root.
This pathway is called the symplastic pathway. The water enters the cytoplasm of the cell through the plasma membrane; hence, the symplastic pathway should cross cell membranes. Chapter Sensory Systems. Chapter Musculoskeletal System. Chapter Endocrine System. Chapter Circulatory and Pulmonary Systems. Chapter Osmoregulation and Excretion. Chapter Immune System. Chapter Reproduction and Development. Chapter Behavior. Chapter Ecosystems. Chapter Population and Community Ecology.
Chapter Biodiversity and Conservation. Chapter Speciation and Diversity. Chapter Natural Selection. Chapter Population Genetics. Chapter Evolutionary History. Chapter Plant Reproduction. Chapter Plant Responses to the Environment. Full Table of Contents. This is a sample clip. Sign in or start your free trial. JoVE Core Biology. Previous Video. Embed Share. Plants take up water and dissolved minerals from the soil and transport these resources to distant tissues.
Plant cells may also excrete excess protons into the apoplast due to changes in pH. Please enter your institutional email to check if you have access to this content. Please create an account to get access. Forgot Password? Please enter your email address so we may send you a link to reset your password.
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