NEET Exam > NEET Questions > The phenomenon of uptake of water at the exp...
Start Learning for Free
The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :
- a)Osmosis
- b)Active absorption
- c)Passive absorption
- d)Imbibition
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
The phenomenon of uptake of water at the expense of energy by the cel...
Root hairs are unicellular and tube-like projections from the epiblema of the roots. These are specialised hair-like structures meant for the absorption of water. Absorption of water inside the soil by the root hairs can occur in two ways
In the case of Active absorption, water is absorbed by the roots with the expenditure of cellular energy, like ATP. Several hypotheses are postulated to support this method of absorption. The most accepted hypothesis for active absorption is called Osmotic Theory.
This theory was proposed by Atkins in 19161916. Soil solution being hypotonic to cell sap of root hair, endosmosis takes place. This increases TP inside the cell and DPD falls. This causes water movement from root hair cells to cortical cells. Thus water moves along the gradient of DPD.
In the majority of the time, water is absorbed by the roots by creating a difference in the Diffusion Pressure (also called DPD). In the mesophyll of leaves, water loss causes a decrease in Turgor pressure (TP). To balance this fall in TP, DPD increases. With a higher value of DPD, mesophyll picks up water from surrounding tissue and creates a chain of pull or deficit. This pull reaches the xylem and eventually to the root's xylem. This deficiency is continued up to the epiblema of the roots. When the DPD of root hairs exceeds DPD of water in the soil, water passively enters root hair cells.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer?
Question Description
The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer?.
The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as :a)Osmosisb)Active absorptionc)Passive absorptiond)ImbibitionCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup