Transport In Plant notes pdf for NEET exam in English

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Transport In Plant notes pdf for NEET exam in English:- Today we are sharing Transport In Plant notes pdf for NEET exam in English. This Transport In Plant notes pdf for NEET exam in English download for upcoming examination like NEET, JEE, NTPC, SSC CGL, LIC, REET, UPPSC, MPTET, DSSSB, RPSC, UPSC, DRDO, DDA, AAI, SSC GD, ALL STATE PCS EXAM. This Transport In Plant notes pdf for NEET exam in English download and important questions Transport In Plant notes pdf for NEET exam in English which Will be helpful for you in preparing for the exams. Keep watching the updates on this website every day, here the notes and questions are updated daily, if you need notes/questions on any subject or topic, then you can contact our team. pdfdownload.in The team is looking forward to supporting you.

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Most Important Transport In Plant Question

Q.1. Addition of urea to flowering plants so as to grow faster in earthen pot results in the death of the plant after a while. What can be the cause?

Ans. Due to exosmosis, the plant dies. Water gradually tends to move out of the plant cell as the solution outside is a hypertonic solution whereas the plant cell is hypotonic. This causes plasmolysis of the cells of the roots and ultimately, the death of the plant.

Q.2. The direction and rate of Osmosis depend upon ________

Ans. It depends upon both the concentration gradient and the pressure gradient.

Q.3. Water absorption by dry seeds from soil rises the ______, hence aiding seedlings to appear out of the soil.

Ans. The seed materials imbibe water which propels the seedlings out of the soil hence the seed swells and imbibition pressure rises within the seeds enabling seed germination.

Q.4. What are solute potential and water potential?

Ans. The potential energy of water is considered to be the water potential. It is also regarded as a measure of the difference between the potential energy of pure water and a given sample of water. The lowering magnitude of water potential because of the dissolution of solute is known as solute potential.

Q.5. Explain how almost all the water moves into the root?

Ans. The apoplast pathway causes water to flow in the root as the cortical cells are generally loosely arranged which provides no resistance to the water that moves through the mass flow. It occurs due to cohesive and adhesive properties exhibited by water. The Symplast pathway is also attributed to the movement of molecules of water within the root.

Q.6. Name a molecular movement that is highly selective requiring special membrane proteins without needing any energy.

Ans. Facilitated diffusion

Q.7. What is Transportation in Plants?

Ans. The process of distribution or the movement of water, minerals and food to all parts of the plant body is termed Transportation in Plants.

Q.8.How is the transportation process occurs in plants?

Ans. Transport in plants occurs at three levels:

Individual cells are involved in the uptake and release of water and other solutes.
Short-distance transport of substances from one cell to another.
The xylem and phloem are two tissues responsible for the movement of water and other solutes.

Q.9.What is Translocation?

Ans. The movement of water and other nutrients from the soil to all parts of the plant is termed Translocation.

Q.10.What are the different means of Transportation in plants?

Ans. There are three different means of Transportation in plants:

Diffusion.
Facilitated diffusion.
Active Transport.

Q.11.Define Plasmolysis and osmosis.

Ans. Plasmolysis is defined as the contraction of the protoplasm of cells within plants due to the loss of water through osmosis.

Osmosis is defined as the process of movement of the molecules from a solution of low concentration to a solution of high concentration through a semipermeable membrane.

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Most Important Transport In Plant Question

Q.1. How does the analysis of the exudate enable one to detect minerals and the form in which they are assembled in the plant?

A.1. Chemical analysis of the exudate(plant sap) can help us understand the form and identity of mineral nutrients that are transported in the plants as the exudate is a mixture of inorganic and organic compounds such as ions, amino acids, sugars, etc. For example, Sulphur in sulphate ion forms, nitrogen is absorbed and transported as NO2 and NO3

Q.2. Name a method that can be used to increase the life span of cut plants in a vase.

Ans. By quickly transferring them into the water, their lifespan can be increased as air will immediately shift into the tissue that conducts water and fill the cell. In addition, supplying elements and nutrients in varying concentrations can increase its life span. Cytokine, a hormone is sprayed or can be dipped in its solution to delay plant senescence.

Q.3. Does the rate of transpiration in different species of a plant cultivated in the same area differ at a particular time? Support your answer.

Ans. The rate of transpiration is governed by several factors. If two species have the same morphology and are related, then the rate of transpiration is dependent on external factors such as humidity, temperature, wind velocity, light intensity, etc.

Q.4. Explain why the intracellular levels of K+ in animal cells are higher than the extracellular levels.

Ans. The ion channels can be closed or open, i.e, they are ‘gated’. The Na+, K+, ATPase generate an imbalance in the charge across the plasma membrane by passing 3Na+ out of the cell for each 2K+ ion carried within causing the inside of the cell more negative than the outside of the cell. The membrane is referred to as polarized. Hence intracellular levels of K+ are higher.

Q.5. Why do cut pieces of beetroot produce colour in hot water and not in cold water?

Ans. It is because the beetroot pigment dissolves and disperses immediately in hot water as hot temperature facilitates leakage of the plasma membrane and discharge of beetroot pigment.

Q.6. Do plants require to adjust the solute types that arrive at the xylem? Name the molecules that assist in adjusting. How is the regulation of the type and quantity of solutes that reach the xylem brought about by the plants?

Ans. Yes, adjustment is required. The end dermal cells possess the transport proteins that aid in regulating and adjusting the solute movement. Since soil minerals are present as charged particles with less concentration in comparison to the roots, they all cannot be transported passively across the cell membranes of the root hairs. Hence through passive and active processes minerals are transported to the xylem. On arriving at the xylem, they are further transported towards the sink through the transpiration stream. The mineral ions at the sink region are unloaded through active uptake by receptor cells and diffusion. A few mineral ions that move often through the xylem are:

Nitrogen travels in plants as inorganic ions NO2 and NO3 but much of the nitrogen moves in the form of amino acids and related organic compounds
Minerals ions are frequently remobilized specifically from older senescing pats. Leaves that are old and dying export most of their mineral content to younger leaves. Likewise, before leaves fall in deciduous plants, minerals are eliminated from other parts. A few elements that are readily mobilized are sulphur, phosphorous, potassium and nitrogen.

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