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Questions and Answers
What are the three main parts of a typical leaf?
What are the three main parts of a typical leaf?
- Pulvinus, veinlets, apex
- Leaf base, petiole, lamina (correct)
- Stem, stipules, midrib
- Venation, reticulate, parallel
What is the function of the petiole?
What is the function of the petiole?
- To hold the blade to light (correct)
- To transport water and minerals
- To expand into a sheath covering the stem
- To provide rigidity to the leaf blade
What is the characteristic venation of most monocotyledons?
What is the characteristic venation of most monocotyledons?
- Interconnected venation
- Parallel venation (correct)
- Reticulate venation
- Network venation
What is the swollen leaf base in some leguminous plants called?
What is the swollen leaf base in some leguminous plants called?
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What provides rigidity to the leaf blade and acts as channels of transport for water, minerals, and food materials?
What provides rigidity to the leaf blade and acts as channels of transport for water, minerals, and food materials?
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Study Notes
Leaf Anatomy
- A typical leaf consists of three main parts: blade, petiole, and stipules
- The petiole is the stalk that attaches the leaf to the stem, allowing for flexibility and movement
Leaf Venation
- Most monocotyledons have parallel venation, where veins run parallel to each other
Leaf Bases
- In some leguminous plants, the swollen leaf base is called a pulvinus
Leaf Support and Transport
- The vascular tissues (xylem and phloem) provide rigidity to the leaf blade and act as channels for the transport of water, minerals, and food materials
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