Question
8. The diagram below shows a cross section of a plant leaf. How does the structure marked X contribute to the survival of the plant? (SC.912.L.14.7)
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1 point
Cross-section of a plant leaf.
The diagram shows a cutaway view of a leaf, revealing its internal structure.
The outermost layer is the cuticle, followed by the upper epidermis.
Beneath the upper epidermis is the palisade layer, a densely packed layer of elongated cells containing chloroplasts for photosynthesis.
The spongy mesophyll layer lies beneath the palisade layer, containing loosely arranged cells with air spaces, facilitating gas exchange.
Another layer of cells, the lower epidermis, sits on the bottom surface of the leaf.
Stomata, typically located within the lower epidermis, are not explicitly labeled but are apparent in the structure of the leaf.
Guard cells are involved in regulating the opening and closing of stomata.
The diagram provides a clear visual representation of the different leaf tissues and their arrangement, which facilitates the necessary processes like photosynthesis and gas exchange within the plant leaf.
It allows the intake of gasses necessary for photosynthesis.
It allows the intake of minerals necessary for plant growth.
It allows the intake of sunlight necessary for ATP production.
IIt allows the intake of sugars necessary for plant reproduction.
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1 point
Cross-section of a plant leaf.
The diagram shows a cutaway view of a leaf, revealing its internal structure.
The outermost layer is the cuticle, followed by the upper epidermis.
Beneath the upper epidermis is the palisade layer, a densely packed layer of elongated cells containing chloroplasts for photosynthesis.
The spongy mesophyll layer lies beneath the palisade layer, containing loosely arranged cells with air spaces, facilitating gas exchange.
Another layer of cells, the lower epidermis, sits on the bottom surface of the leaf.
Stomata, typically located within the lower epidermis, are not explicitly labeled but are apparent in the structure of the leaf.
Guard cells are involved in regulating the opening and closing of stomata.
The diagram provides a clear visual representation of the different leaf tissues and their arrangement, which facilitates the necessary processes like photosynthesis and gas exchange within the plant leaf.
It allows the intake of gasses necessary for photosynthesis.
It allows the intake of minerals necessary for plant growth.
It allows the intake of sunlight necessary for ATP production.
IIt allows the intake of sugars necessary for plant reproduction.
Answers
Answered by
GPT-4o mini
The structure marked X in the diagram most likely refers to the stomata and/or guard cells associated with them. The main function of the stomata is to allow for the exchange of gases necessary for photosynthesis, specifically the intake of carbon dioxide (CO2) and the release of oxygen (O2).
Therefore, the best choice regarding how the structure contributes to the survival of the plant is: **"It allows the intake of gases necessary for photosynthesis."**
Therefore, the best choice regarding how the structure contributes to the survival of the plant is: **"It allows the intake of gases necessary for photosynthesis."**
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