World's only instant tutoring platform
dropdown-logo
Become a tutorPartnershipsAbout usStudent loginTutor login
About us
Login
App StorePlay Store
Get 2 FREE Instant-Explanations on Filo with code FILOAPP
Explain why xylem transport is unidirectional and phloem trans
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

arrow
2

Chapter 2: Biological Classification

12 questions

arrow
3

Chapter 3: Plant Kingdom

12 questions

arrow
4

Chapter 4: Animal Kingdom

15 questions

arrow
5

Chapter 5: Morphology of Flowering Plants

15 questions

arrow
6

Chapter 6: Anatomy of Flowering Plants

12 questions

arrow
7

Chapter 7: Structural Organization in Animals

14 questions

arrow
8

Chapter 8: Cell: The Unit of Life

14 questions

arrow
9

Chapter 9: Biomolecules

15 questions

arrow
10

Chapter 10: Cell Cycle and Cell Division

16 questions

arrow
11

Chapter 11: Transport in Plants

16 questions

Q1
What essential role does the root endodermis play during mineral absorption in plants?
Q2
Explain why xylem transport is unidirectional and phloem transport bi-directional.
Q3
Explain pressure flow hypothesis of translocation of sugars in plants.
View all question
12

Chapter 12: Mineral Nutrition

10 questions

arrow
13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

arrow
14

Chapter 14: Respiration in Plants

12 questions

arrow
15

Chapter 15: Plant Growth and Development

11 questions

arrow
16

Chapter 16: Digestion and Absorption

15 questions

arrow
17

Chapter 17: Breathing and Exchange of Gases

14 questions

arrow
18

Chapter 18: Body Fluids and Circulation

14 questions

arrow
19

Chapter 19: Excretory Products and their Elimination

12 questions

arrow
20

Chapter 20: Locomotion and Movement

10 questions

arrow
21

Chapter 21: Neural Control and Coordination

12 questions

arrow
22

Chapter 22: Chemical Coordination and Integration

9 questions

arrow
Question
Easy
Timing Icon

Solving time: 2 mins

Explain why xylem transport is unidirectional and phloem transport bi-directional.

Views

Views: 6,035 students

Book

Book:

Biology (NCERT)

tutor 0tutor 1tutor 2
Found 4 tutors discussing this question
Owen Discussed
Explain why xylem transport is unidirectional and phloem transport bi-directional.
11 mins ago
Discuss this question LIVE
11 mins ago

Text SolutionText solutionverified iconVerified

During the growth of a plant, its leaves act as the source of food as they carry out photosynthesis. The phloem conducts the food from the source to the sink (the part of the plant requiring or storing food). During spring, this process is reversed as the food stored in the sink is mobilised toward the growing buds of the plant, through the phloem. Thus, the movement of food in the phloem is bidirectional (i.e., upward and downward).
The transport of water in the xylem takes place only from the roots to the leaves. Therefore, the movement of water and nutrients in the xylem is unidirectional.
Was this solution helpful?
84
Share
Report
One destination for complete JEE/NEET preparation
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
Instant 1:1 help, 24x7
60, 000+ Expert tutors
60, 000+ Expert tutors
Textbook solutions
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Big idea maths, McGraw-Hill Education etc
Essay review
Essay review
Get expert feedback on your essay
Get expert feedback on your essay
Schedule classes
Schedule classes
High dosage tutoring from Dedicated 3 experts
High dosage tutoring from Dedicated 3 experts
Trusted by 4 million+ students

Practice more questions from Biology (NCERT)

Q1
What essential role does the root endodermis play during mineral absorption in plants?
Q2
Explain why xylem transport is unidirectional and phloem transport bi-directional.
Q3
Explain pressure flow hypothesis of translocation of sugars in plants.
View all

Practice questions from Biology (NCERT)

Question 1
Easy
Views

Views: 5,684

Explain why pure water has the maximum water potential.
Topic

Topic:

Transport in Plants

Book

Book:

Biology (NCERT)

View 2 solutions

Question 2
Easy
Views

Views: 6,018

Describe the role played by protein pumps during active transport in plants.
Topic

Topic:

Transport in Plants

Book

Book:

Biology (NCERT)

View 3 solutions

Question 3
Easy
Views

Views: 5,683

Briefly describe water potential. What are the factors affecting it?
Topic

Topic:

Transport in Plants

Book

Book:

Biology (NCERT)

View solution

Question 4
Medium
Views

Views: 5,824

Differentiate between the following:
(a) Diffusion and Osmosis
(b) Transpiration and Evaporation
(c) Osmotic Pressure and Osmotic Potential
(d) Imbibition and Diffusion
(e) Apoplast and Symplast pathways of movement of water in plants.
(f) Guttation and Transpiration.
Topic

Topic:

Transport in Plants

Book

Book:

Biology (NCERT)

View 3 solutions

View more
filo Logo

Practice more questions from Transport in Plants

Question 1
Views

Views: 5,280

The movement of water from one cell of the cortex to the adjacent one in roots is due to:
  1. Accumulation of inorganic salts in the cells
  2. Accumulation of organic compounds in the cells
  3. Chemical potential gradient
  4. Water potential gradient
Topic

Topic:

Transport in Plants

View 3 solutions

Question 2
Easy
Views

Views: 5,507

What is the direction of movement of sugars in phloem?
  1. Downward
  2. Bi-directional
  3. Non-multidirectional
  4. Upward
Topic

Topic:

Transport in Plants

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

View 2 solutions

Question 3
Easy
Views

Views: 5,341

Addition of a solute to pure water causes
  1. negative water potential.
  2. more negative water potential.
  3. positive water potential.
  4. more positive water potential.
Topic

Topic:

Transport in Plants

View solution

Question 4
Easy
Views

Views: 5,108

In both transpiration and evaporation, water is lost in the form of vapour yet they differ, because
  1. Both transpiration and evaporation are similar but the rate of water loss differs
  2. Frequency of water loss is different in both of them
  3. Transpiration is a physical process and evaporation is a physiological process
  4. Transpiration is a physiological process andevaporation is a physical process
Topic

Topic:

Transport in Plants

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

View solution

Practice questions on similar concepts asked by Filo students

Question 1
Views

Views: 5,756

Which is a more efficient way to ventilate the lungs, rapid shallow breaths or slow deep breaths? Use the equation for alveolar ventilation to justify your answer.
Topic

Topic:

Biology

View solution

Question 2
Views

Views: 5,238

Function of gall bladder is -
  1. Storage of bile
  2. Secretion of bile
  3. Formation of digestive enzyme
  4. Formation of bile salts
Topic

Topic:

Human Physiology

View solution

Question 3
Views

Views: 5,567

Plasmids are [1] circular DNA. They are extra-chromosomal DNA in [2] bacterial cells. The size of the plasmid pBR325 is [3] 5996 bps (base pairs).
Topic

Topic:

Biology

View solution

Question 4
Views

Views: 5,505

Briefly explain (in 3 sentences or less) the following phenomena: A. Tetrodotoxin is a neurotoxin produced by pufferfish (served as sashimi in Japan). Tetrodotoxin blocks voltage-gated Na+ channels, leading to the cessation of breathing. B. Organophosphates are found in insecticides and inhibit acetylcholinesterase. This inhibition leads to excessive gastrointestinal motility, resulting in diarrhea. C. Kavain is a chemical found in the kava plant (served as tea). Kavain may be used to treat anxiety because it activates neuronal GABA receptors, which are chemically-gated chloride channels. This activation affects a neuron's resting membrane potential and its frequency of action potentials.
Topic

Topic:

Biology

View solution

View more
Doubt Icon Doubt Icon

Stuck on the question or explanation?

Connect with our Biology tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Related books for questions on Transport in Plants

next icon
next icon
Question Text
Explain why xylem transport is unidirectional and phloem transport bi-directional.
TopicTransport in Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes84