Transport of water and minerals in xylem is essentially
Multidirectional
Bidirectional
Unidirectional
Bidirectional but occasionally multidirectional
Related Questions
    Which of the following theories for ascent of sap was proposed by an eminent Indian scientist J C Bose?
Pulsation theory
Relay pump theory
Transpiration pull theory
Root pressure theory
The following is to be transported in flowering plants in unidirectional manner from root to shoot?
Water
Minerals
Organic substances
1 and 2
    In plants; which of the following are/is translocated through phloem?
    Hormones
Amino acids
Sugars
All of these
    Which of the following is responsible for the transport of water and minerals from roots to stems, leaves, flowers and fruits in rooted plants?
    Xylem
Phloem
Either (a) or (b)
Both (a) and (b)
In plants, long distance transport of organic and inorganic substances occur through
    Simple permanent tissues
    Complex permanent tissues
    Meristematic tissues
    Epithelial tissues
If you are given a task to analyse phloem sap chemical, which of the following will be present in least concentration?
Water
Sugar
Minerals and nitrogen
Hormones
What is required for the transport of substances through a membrane from a region of lower
concentration to higher concentration?
Input of energy
Output of energy
Facilitated diffusion
Nothing is required
    The plants, which are able to send their roots up to the fringe of water table are called
    Xerophytic plants
Terrestrial plants
Phreatophytes
Mesophytes
    A soil sample is found to have 25% of its volume occupied by soil water. Of this, 10% is hygroscopic water and the remaining is capillary water. What is the field capacity of this soil?
10%
15%
25%
5%
What is required for the transport of substances through a membrane from a region of lower
concentration to higher concentration?
Input of energy
Output of energy
Facilitated diffusion
Nothing is required
