Which part helps hold the leaf blade to light?

Which part helps hold the leaf blade to light?

• A. Axillary Bud
• B. Venation
• C. Petiole
• D. Lamina/Leaf Blade

Answer: (C)

The part that holds the leaf blade to light is the petiole. It’s the stalk that attaches the leaf blade (lamina) to the stem, acting as a connector and lever so the blade can be positioned to face the light and even tilt toward it as needed for efficient photosynthesis. Venation refers to the network of veins that transport water and sugars, not to how the blade is held toward light. The lamina itself is the broad leaf surface that captures light, but it relies on the petiole for attachment and positioning. The axillary bud sits at the leaf base and is involved in new shoot growth, not in holding the blade toward light.

The part that holds the leaf blade to light is the petiole. It’s the stalk that attaches the leaf blade (lamina) to the stem, acting as a connector and lever so the blade can be positioned to face the light and even tilt toward it as needed for efficient photosynthesis. Venation refers to the network of veins that transport water and sugars, not to how the blade is held toward light. The lamina itself is the broad leaf surface that captures light, but it relies on the petiole for attachment and positioning. The axillary bud sits at the leaf base and is involved in new shoot growth, not in holding the blade toward light.