Plant Abscission Process

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What does the process of abscission involve?

Merging of leaves, flowers, and fruits into a plant

Separation of leaves, flowers, and fruits from a plant (correct)

Insertion of leaves, flowers, and fruits into a plant

Absorption of leaves, flowers, and fruits by a plant

What triggers the abscission of leaves?

Increased sunlight and chlorophyll in the environment

Introduction of new plant species in the surroundings

Seasonal changes leading to reduced sunlight and chlorophyll (correct)

Damage to the plant caused by extreme weather conditions

What is the Latin origin of the word 'abscission'?

Ac (sharp) + sciendere (to cut)

Ad (towards) + sciendere (to cut)

Ab (away) + sciendere (to cut) (correct)

Ab (above) + sciendere (to cut)

Why do plants abscise fruit while still immature?

To conserve resources needed for the remaining fruit to mature Signup and view all the answers

What is the purpose of abscising senescent leaves in the fall?

Conserving water and photosynthetic efficiency Signup and view all the answers

When can plants shed organs through abscission?

When the organs are no longer required or are damaged Signup and view all the answers

What is the primary regulator of the abscission process?

Abscisic Acid (ABA) Signup and view all the answers

What is the role of the abscission layer in leaf or fruit shedding?

It prevents loss of water and nutrients Signup and view all the answers

Where is Abscisic Acid (ABA) synthesized in plants?

Stems, leaves, fruits, and seeds Signup and view all the answers

What is the effect of Abscisic Acid (ABA) on plant growth?

Inhibits growth and induces dormancy Signup and view all the answers

What is the purpose of the deposition of lignin and suberin in the abscission layer?

To prevent water and nutrient loss Signup and view all the answers

What is the key function of the abscission zone in plants?

To separate parts from the main body before shedding Signup and view all the answers

What is the primary purpose of abscission in plants?

To conserve resources for seed dispersal Signup and view all the answers

Which of the following is a key factor leading to the abscission of leaves?

Reduction in sunlight exposure Signup and view all the answers

How does abscission contribute to plant reproductive success?

By shedding organs to facilitate seed dispersal Signup and view all the answers

In which scenario would a plant most likely initiate abscission?

When a leaf is damaged or during autumn Signup and view all the answers

What triggers the shedding of flowers or leaves through abscission?

Pollination and senescence Signup and view all the answers

Why might plants abscise fruit while still immature?

To conserve resources for bringing remaining fruit to maturity Signup and view all the answers

What is the role of abscisic acid (ABA) in the process of leaf abscission?

Inhibiting growth and inducing dormancy Signup and view all the answers

What is the main function of the abscission layer in leaf or fruit shedding?

To prevent loss of water and nutrients Signup and view all the answers

What is the primary effect of the deposition of lignin and suberin in the abscission layer?

To cause the cells of the layer to die and become hardened Signup and view all the answers

Where is Abscisic Acid (ABA) synthesized in plants?

Leaves and fruits Signup and view all the answers

What triggers the formation of the abscission layer in plants?

Reduction in temperature and daylight hours Signup and view all the answers

What is the role of Abscisic Acid (ABA) in the shedding of immature fruits?

Inducing dormancy and promoting fruit shedding Signup and view all the answers

Plant Abscission Process

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Questions and Answers

What does the process of abscission involve?

What triggers the abscission of leaves?

What is the Latin origin of the word 'abscission'?

Why do plants abscise fruit while still immature?

What is the purpose of abscising senescent leaves in the fall?

When can plants shed organs through abscission?

What is the primary regulator of the abscission process?

What is the role of the abscission layer in leaf or fruit shedding?

Where is Abscisic Acid (ABA) synthesized in plants?

What is the effect of Abscisic Acid (ABA) on plant growth?

What is the purpose of the deposition of lignin and suberin in the abscission layer?

What is the key function of the abscission zone in plants?

What is the primary purpose of abscission in plants?

Which of the following is a key factor leading to the abscission of leaves?

How does abscission contribute to plant reproductive success?

In which scenario would a plant most likely initiate abscission?

What triggers the shedding of flowers or leaves through abscission?

Why might plants abscise fruit while still immature?

What is the role of abscisic acid (ABA) in the process of leaf abscission?

What is the main function of the abscission layer in leaf or fruit shedding?

What is the primary effect of the deposition of lignin and suberin in the abscission layer?

Where is Abscisic Acid (ABA) synthesized in plants?

What triggers the formation of the abscission layer in plants?

What is the role of Abscisic Acid (ABA) in the shedding of immature fruits?

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