Answer
Verified
405k+ views
Hint: In the mesarch type of arrangement of xylem, the protoxylem develops first in the primary xylem in the center of the strand, and then it continues to develop in both, outer and inner sides of the strand. Higher flowering plants don’t have this type of xylem arrangement.
Complete answer:
Mesarch type of xylem arrangement has been seen in the leaves and stems of plants belonging to pteridophytes and ferns and such xylem is the characteristics of these plants. Xylem transports water and some other mineral nutrients from the roots to the leaves of the plants and is one of the two types of vascular tissues found in plants. The other one is phloem which transports the food material and nutrients from leaves to the other parts of the plant body. Different types of xylem arrangements are found in different plants and also in different parts of the same plant.
Additional information
Considering the development of xylem, protoxylem is the first xylem that develops in a growing plant and it has vessels with the narrow lumen. Metaxylem, which has relatively larger vessels and cells, develops later to the protoxylem. Based on the arrangement of protoxylem and metaxylem, the types of xylem can be –
Centrarch – In this type of arrangement, the protoxylem is surrounded by metaxylem, but this type of arrangement is not found in any presently living plants.
Exarch – Here, protoxylem is towards the outer side while metaxylem is towards the inner side and the arrangement is found in the roots of vascular plants.
Endarch – This arrangement is opposite to the exarch here, protoxylem lies towards the inner side and metaxylem towards the outer side and such type of arrangement of xylem elements is shown by the stems of vascular plants.
Mesarch – Here, protoxylem in a primary xylem strand develops first in the center of one strand and it continues to develop both centrifugally and centripetally. This type of arrangement is found in the leaves and stems of ferns and pteridophytes.
So, the correct answer is “Ferns”.
Note:
-Tracheids and vessels are the main types of cells that constitute xylem in plants. Tracheids are long cells that besides providing sap transport, also help in structural support.
-Vessels are shorter than tracheids in length but are also conducting in nature and help to conduct water mainly. These are absent in gymnosperms but are found in other flowering plants.
Complete answer:
Mesarch type of xylem arrangement has been seen in the leaves and stems of plants belonging to pteridophytes and ferns and such xylem is the characteristics of these plants. Xylem transports water and some other mineral nutrients from the roots to the leaves of the plants and is one of the two types of vascular tissues found in plants. The other one is phloem which transports the food material and nutrients from leaves to the other parts of the plant body. Different types of xylem arrangements are found in different plants and also in different parts of the same plant.
Additional information
Considering the development of xylem, protoxylem is the first xylem that develops in a growing plant and it has vessels with the narrow lumen. Metaxylem, which has relatively larger vessels and cells, develops later to the protoxylem. Based on the arrangement of protoxylem and metaxylem, the types of xylem can be –
Centrarch – In this type of arrangement, the protoxylem is surrounded by metaxylem, but this type of arrangement is not found in any presently living plants.
Exarch – Here, protoxylem is towards the outer side while metaxylem is towards the inner side and the arrangement is found in the roots of vascular plants.
Endarch – This arrangement is opposite to the exarch here, protoxylem lies towards the inner side and metaxylem towards the outer side and such type of arrangement of xylem elements is shown by the stems of vascular plants.
Mesarch – Here, protoxylem in a primary xylem strand develops first in the center of one strand and it continues to develop both centrifugally and centripetally. This type of arrangement is found in the leaves and stems of ferns and pteridophytes.
So, the correct answer is “Ferns”.
Note:
-Tracheids and vessels are the main types of cells that constitute xylem in plants. Tracheids are long cells that besides providing sap transport, also help in structural support.
-Vessels are shorter than tracheids in length but are also conducting in nature and help to conduct water mainly. These are absent in gymnosperms but are found in other flowering plants.
Recently Updated Pages
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
What are the possible quantum number for the last outermost class 11 chemistry CBSE
Is C2 paramagnetic or diamagnetic class 11 chemistry CBSE
What happens when entropy reaches maximum class 11 chemistry JEE_Main
Calculate the volume occupied by 88 gram of CO2 at class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
Select the word that is correctly spelled a Twelveth class 10 english CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
What organs are located on the left side of your body class 11 biology CBSE
What is BLO What is the full form of BLO class 8 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE