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Which among the following is incorrect about different parts of the leaf?
- a)Grass is an example of petiolate plants
- b)Petiole is flexible thin structure that helps in fluttering of leaves in the air
- c)Legumes have a swollen leaf base called Pulvinus
- d)Lamina contains veins and veinlets that transmit water to different regions of the leaf
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which among the following is incorrect about different parts of the le...
- Lamina contains veins and veinlets that transmit water to different regions of the leaf.
- Petiole is flexible thin structure that helps in fluttering of leaves in the air.
- Based on the presence or absence of petiole, plants are classified into petiolate and sessile respectively.
- Since petiole is absent in grass, it is considered to be sessile.
- Legumes have a swollen leaf base called Pulvinus.
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Most Upvoted Answer
Which among the following is incorrect about different parts of the le...
Incorrect Statement: Legumes have a swollen leaf base called Pulvinus.
Explanation:
Pulvinus:
- A pulvinus is a specialized structure found in some plants, particularly legumes.
- It is a swollen leaf base that connects the leaf to the stem or petiole.
- The pulvinus acts as a flexible joint that allows the leaf to move in response to environmental stimuli such as light, touch, or changes in temperature.
Petiole:
- The petiole is a thin, flexible structure that connects the leaf blade or lamina to the stem.
- It acts as a support for the leaf and allows it to be positioned optimally for photosynthesis and gas exchange.
- The petiole also contains vascular tissues that transport water, nutrients, and sugars between the leaf and the rest of the plant.
Examples of Petiolate Plants:
- Petiolate plants are those that have leaves with petioles.
- Grasses, however, are an example of plants that are typically petiolate.
- In grasses, the petioles are usually short and are known as "ligules."
- The ligules in grasses help to protect the growing point of the leaf and prevent water loss.
Lamina:
- The lamina, also known as the leaf blade, is the flattened, expanded part of the leaf.
- It is typically thin and broad, providing a large surface area for photosynthesis.
- The lamina contains veins and veinlets, which are vascular tissues that transport water, nutrients, and sugars throughout the leaf.
- These veins and veinlets form a network that supplies water to different regions of the leaf and supports its overall structure.
Conclusion:
Based on the explanations given above, the incorrect statement is option A, which states that legumes have a swollen leaf base called a pulvinus. In reality, legumes do have a specialized structure called a pulvinus, but it is not located in the leaf base. The pulvinus is found at the base of the leaflet, which is a smaller unit of the compound leaf in legumes.
Explanation:
Pulvinus:
- A pulvinus is a specialized structure found in some plants, particularly legumes.
- It is a swollen leaf base that connects the leaf to the stem or petiole.
- The pulvinus acts as a flexible joint that allows the leaf to move in response to environmental stimuli such as light, touch, or changes in temperature.
Petiole:
- The petiole is a thin, flexible structure that connects the leaf blade or lamina to the stem.
- It acts as a support for the leaf and allows it to be positioned optimally for photosynthesis and gas exchange.
- The petiole also contains vascular tissues that transport water, nutrients, and sugars between the leaf and the rest of the plant.
Examples of Petiolate Plants:
- Petiolate plants are those that have leaves with petioles.
- Grasses, however, are an example of plants that are typically petiolate.
- In grasses, the petioles are usually short and are known as "ligules."
- The ligules in grasses help to protect the growing point of the leaf and prevent water loss.
Lamina:
- The lamina, also known as the leaf blade, is the flattened, expanded part of the leaf.
- It is typically thin and broad, providing a large surface area for photosynthesis.
- The lamina contains veins and veinlets, which are vascular tissues that transport water, nutrients, and sugars throughout the leaf.
- These veins and veinlets form a network that supplies water to different regions of the leaf and supports its overall structure.
Conclusion:
Based on the explanations given above, the incorrect statement is option A, which states that legumes have a swollen leaf base called a pulvinus. In reality, legumes do have a specialized structure called a pulvinus, but it is not located in the leaf base. The pulvinus is found at the base of the leaflet, which is a smaller unit of the compound leaf in legumes.
Community Answer
Which among the following is incorrect about different parts of the le...
- Lamina contains veins and veinlets that transmit water to different regions of the leaf.
- Petiole is flexible thin structure that helps in fluttering of leaves in the air.
- Based on the presence or absence of petiole, plants are classified into petiolate and sessile respectively.
- Since petiole is absent in grass, it is considered to be sessile.
- Legumes have a swollen leaf base called Pulvinus.
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Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer?
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Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer?.
Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer?.
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Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which among the following is incorrect about different parts of the leaf?a)Grass is an example of petiolate plantsb)Petiole is flexible thin structure that helps in fluttering of leaves in the airc)Legumes have a swollen leaf base called Pulvinusd)Lamina contains veins and veinlets that transmit water to different regions of the leafCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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