271538
The movement of water and minerals in xylem and the movement of phloem sap in phloem is respectively.
1 Unidirectional, bidirectional
2 Bidirectional, bidirectional
3 Bidirectional, unidirectional
4 Unidirectional, unidirectional
Explanation:
Exp:A The movement of water and minerals in xylem is always unidirectional i.e. upwards while movement of phloem sap in phloem is bidirectional i.e. upward and down wards because source-sink relationship variable.
GUJCET-2016
Anatomy of Flowering Plants
271539
Nucleus is absent in which of the following?
1 Xylem parenchyma
2 Phloem parenchyma
3 Sieve tube cells
4 Companion cells
Explanation:
Exp:C Sieve tube is an elongated living cell of the phloem which is responsible for the transportation of food (mostly sugar). At maturity, the nucleus of the sieve tube gets fragmented and disappears along with the cellular organelles.
Assam CEE-2014
Anatomy of Flowering Plants
271540
The main function of phloem is translocation of:
1 food
2 water
3 mineral
4 air
Explanation:
Exp:A Phloem is responsible for the transport of food from the leaves to all the parts of the plant. Phloem tissue transports and distributes the sucrose and nutrients produced by plants during photosynthesis. Phloem is in charge of transporting food and nutrients from the leaves to all the plant's part
BHU PMT (Mains)-2010
Anatomy of Flowering Plants
271542
Which tissue is involved in conduction of water:
1 Xylem
2 Phloem
3 both \(\mathrm{a}\) and \(\mathrm{b}\)
4 Parenchyma
Explanation:
Exp:A Xylem is one of the complex permanent tissue present in plants. It is composed of xylem parenchyma, vessels, tracheids, and xylem fibers. They help in the conduction of water in the plant. Xylem is called water-conducting tissue because, it is mainly involved in the conduction of water from roots to the aerial parts of the plant. It also helps in compensating for the loss of water due to transpiration and photosynthesis. Because of its major involvement in the transportation of water, it is known as a waterconducting tissue.
271538
The movement of water and minerals in xylem and the movement of phloem sap in phloem is respectively.
1 Unidirectional, bidirectional
2 Bidirectional, bidirectional
3 Bidirectional, unidirectional
4 Unidirectional, unidirectional
Explanation:
Exp:A The movement of water and minerals in xylem is always unidirectional i.e. upwards while movement of phloem sap in phloem is bidirectional i.e. upward and down wards because source-sink relationship variable.
GUJCET-2016
Anatomy of Flowering Plants
271539
Nucleus is absent in which of the following?
1 Xylem parenchyma
2 Phloem parenchyma
3 Sieve tube cells
4 Companion cells
Explanation:
Exp:C Sieve tube is an elongated living cell of the phloem which is responsible for the transportation of food (mostly sugar). At maturity, the nucleus of the sieve tube gets fragmented and disappears along with the cellular organelles.
Assam CEE-2014
Anatomy of Flowering Plants
271540
The main function of phloem is translocation of:
1 food
2 water
3 mineral
4 air
Explanation:
Exp:A Phloem is responsible for the transport of food from the leaves to all the parts of the plant. Phloem tissue transports and distributes the sucrose and nutrients produced by plants during photosynthesis. Phloem is in charge of transporting food and nutrients from the leaves to all the plant's part
BHU PMT (Mains)-2010
Anatomy of Flowering Plants
271542
Which tissue is involved in conduction of water:
1 Xylem
2 Phloem
3 both \(\mathrm{a}\) and \(\mathrm{b}\)
4 Parenchyma
Explanation:
Exp:A Xylem is one of the complex permanent tissue present in plants. It is composed of xylem parenchyma, vessels, tracheids, and xylem fibers. They help in the conduction of water in the plant. Xylem is called water-conducting tissue because, it is mainly involved in the conduction of water from roots to the aerial parts of the plant. It also helps in compensating for the loss of water due to transpiration and photosynthesis. Because of its major involvement in the transportation of water, it is known as a waterconducting tissue.
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Anatomy of Flowering Plants
271538
The movement of water and minerals in xylem and the movement of phloem sap in phloem is respectively.
1 Unidirectional, bidirectional
2 Bidirectional, bidirectional
3 Bidirectional, unidirectional
4 Unidirectional, unidirectional
Explanation:
Exp:A The movement of water and minerals in xylem is always unidirectional i.e. upwards while movement of phloem sap in phloem is bidirectional i.e. upward and down wards because source-sink relationship variable.
GUJCET-2016
Anatomy of Flowering Plants
271539
Nucleus is absent in which of the following?
1 Xylem parenchyma
2 Phloem parenchyma
3 Sieve tube cells
4 Companion cells
Explanation:
Exp:C Sieve tube is an elongated living cell of the phloem which is responsible for the transportation of food (mostly sugar). At maturity, the nucleus of the sieve tube gets fragmented and disappears along with the cellular organelles.
Assam CEE-2014
Anatomy of Flowering Plants
271540
The main function of phloem is translocation of:
1 food
2 water
3 mineral
4 air
Explanation:
Exp:A Phloem is responsible for the transport of food from the leaves to all the parts of the plant. Phloem tissue transports and distributes the sucrose and nutrients produced by plants during photosynthesis. Phloem is in charge of transporting food and nutrients from the leaves to all the plant's part
BHU PMT (Mains)-2010
Anatomy of Flowering Plants
271542
Which tissue is involved in conduction of water:
1 Xylem
2 Phloem
3 both \(\mathrm{a}\) and \(\mathrm{b}\)
4 Parenchyma
Explanation:
Exp:A Xylem is one of the complex permanent tissue present in plants. It is composed of xylem parenchyma, vessels, tracheids, and xylem fibers. They help in the conduction of water in the plant. Xylem is called water-conducting tissue because, it is mainly involved in the conduction of water from roots to the aerial parts of the plant. It also helps in compensating for the loss of water due to transpiration and photosynthesis. Because of its major involvement in the transportation of water, it is known as a waterconducting tissue.
271538
The movement of water and minerals in xylem and the movement of phloem sap in phloem is respectively.
1 Unidirectional, bidirectional
2 Bidirectional, bidirectional
3 Bidirectional, unidirectional
4 Unidirectional, unidirectional
Explanation:
Exp:A The movement of water and minerals in xylem is always unidirectional i.e. upwards while movement of phloem sap in phloem is bidirectional i.e. upward and down wards because source-sink relationship variable.
GUJCET-2016
Anatomy of Flowering Plants
271539
Nucleus is absent in which of the following?
1 Xylem parenchyma
2 Phloem parenchyma
3 Sieve tube cells
4 Companion cells
Explanation:
Exp:C Sieve tube is an elongated living cell of the phloem which is responsible for the transportation of food (mostly sugar). At maturity, the nucleus of the sieve tube gets fragmented and disappears along with the cellular organelles.
Assam CEE-2014
Anatomy of Flowering Plants
271540
The main function of phloem is translocation of:
1 food
2 water
3 mineral
4 air
Explanation:
Exp:A Phloem is responsible for the transport of food from the leaves to all the parts of the plant. Phloem tissue transports and distributes the sucrose and nutrients produced by plants during photosynthesis. Phloem is in charge of transporting food and nutrients from the leaves to all the plant's part
BHU PMT (Mains)-2010
Anatomy of Flowering Plants
271542
Which tissue is involved in conduction of water:
1 Xylem
2 Phloem
3 both \(\mathrm{a}\) and \(\mathrm{b}\)
4 Parenchyma
Explanation:
Exp:A Xylem is one of the complex permanent tissue present in plants. It is composed of xylem parenchyma, vessels, tracheids, and xylem fibers. They help in the conduction of water in the plant. Xylem is called water-conducting tissue because, it is mainly involved in the conduction of water from roots to the aerial parts of the plant. It also helps in compensating for the loss of water due to transpiration and photosynthesis. Because of its major involvement in the transportation of water, it is known as a waterconducting tissue.