Podcast
Questions and Answers
What is the transparent waxy layer on the leaf called?
What is the transparent waxy layer on the leaf called?
- Cuticle (correct)
- Epidermis
- Cytoplasm
- Chloroplast
What does the cuticle help to reduce?
What does the cuticle help to reduce?
- Light absorption
- Oxygen production
- Water loss (correct)
- Carbon dioxide intake
Which cells are tightly packed and close to the epidermis?
Which cells are tightly packed and close to the epidermis?
- Palisade cells (correct)
- Spongy cells
- Root cells
- Xylem cells
Which cells perform greater amount of photosynthesis?
Which cells perform greater amount of photosynthesis?
What is the main function of the phloem?
What is the main function of the phloem?
Which plant part transports water and minerals from the roots?
Which plant part transports water and minerals from the roots?
What structures in the leaf permit transpiration and gas exchange?
What structures in the leaf permit transpiration and gas exchange?
Where is chlorophyll concentrated?
Where is chlorophyll concentrated?
In which cells are chloroplasts found in greater quantity?
In which cells are chloroplasts found in greater quantity?
Why is the epidermis transparent?
Why is the epidermis transparent?
What is the role of the open spaces between spongy cells?
What is the role of the open spaces between spongy cells?
What substance is transported by the pholem?
What substance is transported by the pholem?
What process do the stomata enable?
What process do the stomata enable?
Which of the following cells faciliate more gas exchange?
Which of the following cells faciliate more gas exchange?
What part of the palisade cells faciilitate the absorbance of light?
What part of the palisade cells faciilitate the absorbance of light?
The waxy cuticle is thicker on the upper or lower epidermis?
The waxy cuticle is thicker on the upper or lower epidermis?
Do spongy cells or palisade cells have more air spaces?
Do spongy cells or palisade cells have more air spaces?
What purpose does transpiration serve in the leaf?
What purpose does transpiration serve in the leaf?
Which of the following occurs less in spongy cells?
Which of the following occurs less in spongy cells?
Flashcards
What is the cuticle?
What is the cuticle?
A waxy, transparent layer covering the epidermis, allowing light to penetrate.
Why is the cuticle thicker on the upper epidermis?
Why is the cuticle thicker on the upper epidermis?
The cuticle is thicker on the upper epidermis to minimize water loss.
What are palisade cells?
What are palisade cells?
Palisade cells are closely packed and near the upper epidermis to maximize light absorption for photosynthesis.
What are spongy cells?
What are spongy cells?
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What is the role of phloem?
What is the role of phloem?
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What is the function of stomata?
What is the function of stomata?
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What is the function of xylem?
What is the function of xylem?
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Where are chloroplasts concentrated?
Where are chloroplasts concentrated?
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Study Notes
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A waxy, transparent layer is called the cuticle.
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The thickness of the cuticle is greater on the upper epidermis than on the lower epidermis.
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The cuticle reduces water loss from the cells of the epidermis.
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The transparent epidermal layer allows light to penetrate to the cells responsible for photosynthesis.
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Parenchyma cells are closely packed together and close to the epidermis.
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The upper parenchyma cells allow for the absorption of a greater amount of light needed for photosynthesis.
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The cells forming the spongy layer carry out photosynthesis to a lesser extent than that of the parenchyma cells.
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Large air spaces are between the spongy layer cells providing a surface area for gas exchange between cells and air present in the leaf.
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In terms of function the phloem transports sucrose from where it is synthesized to the rest of the plant.
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Xylem transports water and mineral salts from the root to the stem and leaves.
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Stomata in the leaf allow for transpiration and gas exchange between the leaf and the atmosphere.
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Chloroplasts contain chlorophyll.
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Chloroplasts are more concentrated in the parenchyma cells.
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