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Passage cells are thin-walled cells found in______.
[2007]
- a)phloem elements that serve as entry points for substance for transport ot other plant parts
- b)testa of seeds to enable emergence of growing embryonic axis during seed germination
- c)central region of style through which the pollen tube grows towards the ovary
- d)endodermis of roots facilitating rapid transport of water from cortex to pericycle.
Correct answer is option 'D'. Can you explain this answer?
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Passage cells are thin-walled cells found in______.[2007]a)phloem elem...
- The endodermis is the central, innermost layer of cortex in some land plants.
- It is made of compact living cells surrounded by an outer ring of endodermal cells, that are impregnated with hydrophobic substances to restrict the apoplastic flow of water to the inside.
- Passage cells are endodermal cells of older roots, which have retained thin walls and Casparian strips rather than becoming suberized and waterproof like the other cells around them, to continue to allow some symplastic flow to the inside from cortex to pericycle.
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Passage cells are thin-walled cells found in______.[2007]a)phloem elem...
Passage cells in Endodermis of roots
Passage cells are thin-walled cells found in the endodermis of roots facilitating rapid transport of water from the cortex to the pericycle. Let us understand the significance of these cells in detail.
Endodermis
Endodermis is a single layer of cells that separates the cortex from the pericycle in the roots of plants. It is also known as the “inner skin” of the root. Endodermis plays an important role in selective absorption and movement of water and minerals from the soil to the xylem vessels.
Passage cells
Passage cells are specialized cells found in the endodermis of roots. They are thin-walled cells that lack suberin, a waxy substance that makes cell walls waterproof. Passage cells provide a passage for water and minerals from the cortex to the pericycle, facilitating the rapid transport of these substances.
Significance of passage cells
The significance of passage cells in the endodermis of roots can be understood through the following points:
1. Facilitate rapid transport of water and minerals
The presence of passage cells in the endodermis of roots facilitates the rapid transport of water and minerals from the cortex to the pericycle. This is important for plants as it helps in maintaining water and nutrient balance, especially during periods of water stress.
2. Provide a route for lateral movement of water and minerals
Passage cells provide a route for lateral movement of water and minerals from the cortex to the pericycle. This is important for plants as it allows them to efficiently absorb nutrients from the soil and distribute them to different parts of the plant.
3. Prevent backflow of water and minerals
Passage cells prevent the backflow of water and minerals from the pericycle to the cortex. This is important for plants as it ensures that nutrients are efficiently transported to different parts of the plant without any wastage.
In conclusion, passage cells are thin-walled cells found in the endodermis of roots that facilitate the rapid transport of water and minerals from the cortex to the pericycle. They provide a route for lateral movement of water and minerals, prevent backflow of water and minerals, and play an important role in maintaining water and nutrient balance in plants.
Passage cells are thin-walled cells found in the endodermis of roots facilitating rapid transport of water from the cortex to the pericycle. Let us understand the significance of these cells in detail.
Endodermis
Endodermis is a single layer of cells that separates the cortex from the pericycle in the roots of plants. It is also known as the “inner skin” of the root. Endodermis plays an important role in selective absorption and movement of water and minerals from the soil to the xylem vessels.
Passage cells
Passage cells are specialized cells found in the endodermis of roots. They are thin-walled cells that lack suberin, a waxy substance that makes cell walls waterproof. Passage cells provide a passage for water and minerals from the cortex to the pericycle, facilitating the rapid transport of these substances.
Significance of passage cells
The significance of passage cells in the endodermis of roots can be understood through the following points:
1. Facilitate rapid transport of water and minerals
The presence of passage cells in the endodermis of roots facilitates the rapid transport of water and minerals from the cortex to the pericycle. This is important for plants as it helps in maintaining water and nutrient balance, especially during periods of water stress.
2. Provide a route for lateral movement of water and minerals
Passage cells provide a route for lateral movement of water and minerals from the cortex to the pericycle. This is important for plants as it allows them to efficiently absorb nutrients from the soil and distribute them to different parts of the plant.
3. Prevent backflow of water and minerals
Passage cells prevent the backflow of water and minerals from the pericycle to the cortex. This is important for plants as it ensures that nutrients are efficiently transported to different parts of the plant without any wastage.
In conclusion, passage cells are thin-walled cells found in the endodermis of roots that facilitate the rapid transport of water and minerals from the cortex to the pericycle. They provide a route for lateral movement of water and minerals, prevent backflow of water and minerals, and play an important role in maintaining water and nutrient balance in plants.
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Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer?
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Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer?.
Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Passage cells are thin-walled cells found in______.[2007]a)phloem elements that serve as entry points for substance for transport ot other plant partsb)testa of seeds to enable emergence of growing embryonic axis during seed germinationc)central region of style through which the pollen tube grows towards the ovaryd)endodermis of roots facilitating rapid transport of water from cortex to pericycle.Correct answer is option 'D'. Can you explain this answer?.
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