271609
Which of the following tissue helps in the flow of water in vascular plant?
1 Xylem
2 Phloem
3 Cambium
4 Sieve tube cell
Explanation:
Exp:A 'Xylem', tissue helps in the flow of water in vascular plant. Xylem is a vascular tissue that transports water and dissolved minerals from roots to stems and leaves. It also transports the nutrients. Xylem tissue consists of a variety of specialized, waterconducting cells known as treachery elements.
DUMET-2001
Anatomy of Flowering Plants
271618
The difference in phloem of gymnosperms and angiosperms is due to:
1 Parenchyma
2 Sieve cell
3 Companion cell
4 Fibres
Explanation:
Exp:C The difference in phloem of gymnosperms and angiosperms is due to the 'companion cell', phloem in gymnosperms lack both sieve tubes and corresponding cells. Companion cells are attached to the sieve tubes and regulate, their activity phloem in gymnosperms doesn't have either, instead, they have sieve cells and albuminous cells for the conduction of food. Hence, the difference in phloem of both is due to the 'companion cell'.
Rajasthan PMT-2006
Anatomy of Flowering Plants
271625
Which of the following is anucleated living plant cell?
1 Sieve tube
2 Vessel
3 Tracheid
4 All of these
Explanation:
Exp:A 'Sieve tube' is anucleated living plant cell. Sieve elements are the phloem conducting elements. The sieve elements are stacked on top of each other to form vertical sieve tubes. The nucleus is absent in mature sieve tubes. Sieve tube elements also known as sieve tube members in plant anatomy. Sieve tubes are considered as living cells without a nucleus because the nucleus of companion cells controls their functional activities.
AMU-2002
Anatomy of Flowering Plants
271628
P-proteins belong to
1 xylem parenchyma
2 trichomes
3 sieve tube elements
4 tracheids and vessels
Explanation:
Exp:C Sieve tube element contains special type of protein P- proteins in which P stand for phloem. Most likely function of \(\mathrm{P}\) - protein is sealing mechanism on wounding along with callose and it is also related with conduction of food. - Xylem parenchyma, tracheids and vessels are the part of xylem. Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain Protists.
271609
Which of the following tissue helps in the flow of water in vascular plant?
1 Xylem
2 Phloem
3 Cambium
4 Sieve tube cell
Explanation:
Exp:A 'Xylem', tissue helps in the flow of water in vascular plant. Xylem is a vascular tissue that transports water and dissolved minerals from roots to stems and leaves. It also transports the nutrients. Xylem tissue consists of a variety of specialized, waterconducting cells known as treachery elements.
DUMET-2001
Anatomy of Flowering Plants
271618
The difference in phloem of gymnosperms and angiosperms is due to:
1 Parenchyma
2 Sieve cell
3 Companion cell
4 Fibres
Explanation:
Exp:C The difference in phloem of gymnosperms and angiosperms is due to the 'companion cell', phloem in gymnosperms lack both sieve tubes and corresponding cells. Companion cells are attached to the sieve tubes and regulate, their activity phloem in gymnosperms doesn't have either, instead, they have sieve cells and albuminous cells for the conduction of food. Hence, the difference in phloem of both is due to the 'companion cell'.
Rajasthan PMT-2006
Anatomy of Flowering Plants
271625
Which of the following is anucleated living plant cell?
1 Sieve tube
2 Vessel
3 Tracheid
4 All of these
Explanation:
Exp:A 'Sieve tube' is anucleated living plant cell. Sieve elements are the phloem conducting elements. The sieve elements are stacked on top of each other to form vertical sieve tubes. The nucleus is absent in mature sieve tubes. Sieve tube elements also known as sieve tube members in plant anatomy. Sieve tubes are considered as living cells without a nucleus because the nucleus of companion cells controls their functional activities.
AMU-2002
Anatomy of Flowering Plants
271628
P-proteins belong to
1 xylem parenchyma
2 trichomes
3 sieve tube elements
4 tracheids and vessels
Explanation:
Exp:C Sieve tube element contains special type of protein P- proteins in which P stand for phloem. Most likely function of \(\mathrm{P}\) - protein is sealing mechanism on wounding along with callose and it is also related with conduction of food. - Xylem parenchyma, tracheids and vessels are the part of xylem. Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain Protists.
271609
Which of the following tissue helps in the flow of water in vascular plant?
1 Xylem
2 Phloem
3 Cambium
4 Sieve tube cell
Explanation:
Exp:A 'Xylem', tissue helps in the flow of water in vascular plant. Xylem is a vascular tissue that transports water and dissolved minerals from roots to stems and leaves. It also transports the nutrients. Xylem tissue consists of a variety of specialized, waterconducting cells known as treachery elements.
DUMET-2001
Anatomy of Flowering Plants
271618
The difference in phloem of gymnosperms and angiosperms is due to:
1 Parenchyma
2 Sieve cell
3 Companion cell
4 Fibres
Explanation:
Exp:C The difference in phloem of gymnosperms and angiosperms is due to the 'companion cell', phloem in gymnosperms lack both sieve tubes and corresponding cells. Companion cells are attached to the sieve tubes and regulate, their activity phloem in gymnosperms doesn't have either, instead, they have sieve cells and albuminous cells for the conduction of food. Hence, the difference in phloem of both is due to the 'companion cell'.
Rajasthan PMT-2006
Anatomy of Flowering Plants
271625
Which of the following is anucleated living plant cell?
1 Sieve tube
2 Vessel
3 Tracheid
4 All of these
Explanation:
Exp:A 'Sieve tube' is anucleated living plant cell. Sieve elements are the phloem conducting elements. The sieve elements are stacked on top of each other to form vertical sieve tubes. The nucleus is absent in mature sieve tubes. Sieve tube elements also known as sieve tube members in plant anatomy. Sieve tubes are considered as living cells without a nucleus because the nucleus of companion cells controls their functional activities.
AMU-2002
Anatomy of Flowering Plants
271628
P-proteins belong to
1 xylem parenchyma
2 trichomes
3 sieve tube elements
4 tracheids and vessels
Explanation:
Exp:C Sieve tube element contains special type of protein P- proteins in which P stand for phloem. Most likely function of \(\mathrm{P}\) - protein is sealing mechanism on wounding along with callose and it is also related with conduction of food. - Xylem parenchyma, tracheids and vessels are the part of xylem. Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain Protists.
271609
Which of the following tissue helps in the flow of water in vascular plant?
1 Xylem
2 Phloem
3 Cambium
4 Sieve tube cell
Explanation:
Exp:A 'Xylem', tissue helps in the flow of water in vascular plant. Xylem is a vascular tissue that transports water and dissolved minerals from roots to stems and leaves. It also transports the nutrients. Xylem tissue consists of a variety of specialized, waterconducting cells known as treachery elements.
DUMET-2001
Anatomy of Flowering Plants
271618
The difference in phloem of gymnosperms and angiosperms is due to:
1 Parenchyma
2 Sieve cell
3 Companion cell
4 Fibres
Explanation:
Exp:C The difference in phloem of gymnosperms and angiosperms is due to the 'companion cell', phloem in gymnosperms lack both sieve tubes and corresponding cells. Companion cells are attached to the sieve tubes and regulate, their activity phloem in gymnosperms doesn't have either, instead, they have sieve cells and albuminous cells for the conduction of food. Hence, the difference in phloem of both is due to the 'companion cell'.
Rajasthan PMT-2006
Anatomy of Flowering Plants
271625
Which of the following is anucleated living plant cell?
1 Sieve tube
2 Vessel
3 Tracheid
4 All of these
Explanation:
Exp:A 'Sieve tube' is anucleated living plant cell. Sieve elements are the phloem conducting elements. The sieve elements are stacked on top of each other to form vertical sieve tubes. The nucleus is absent in mature sieve tubes. Sieve tube elements also known as sieve tube members in plant anatomy. Sieve tubes are considered as living cells without a nucleus because the nucleus of companion cells controls their functional activities.
AMU-2002
Anatomy of Flowering Plants
271628
P-proteins belong to
1 xylem parenchyma
2 trichomes
3 sieve tube elements
4 tracheids and vessels
Explanation:
Exp:C Sieve tube element contains special type of protein P- proteins in which P stand for phloem. Most likely function of \(\mathrm{P}\) - protein is sealing mechanism on wounding along with callose and it is also related with conduction of food. - Xylem parenchyma, tracheids and vessels are the part of xylem. Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain Protists.
