In a ring-girdled plant:

1. the shoot dies first
2. the root dies first
3. the shoot and root die together
4. Neither root nor shoot will die

Subtopic:  Phloem Translocation |
 76%
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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Function of companion cells is:

1. Loading of sucrose into sieve elements
2. Providing energy to sieve elements for active transport
3. Providing water to phloem
4. Loading of sucrose into sieve elements by passive transport
Subtopic:  Phloem Translocation |
 60%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The translocation of organic solutes in sieve tube members is supported by:

1. root pressure and transpiration pull

2. P-proteins

3. mass flow involving a carrier and ATP

4. cytoplasmic streaming

Subtopic:  Phloem Translocation |
 55%
AIPMT - 2006
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