Asked by Garrett Spain on Jun 10, 2024
Verified
The function of the spongy layer of a leaf is primarily
A) photosynthesis.
B) gas exchange.
C) vascular transport.
D) protein synthesis.
E) as a shock absorber.
Spongy Layer
Part of a leaf's mesophyll, characterized by loosely arranged cells with air spaces, facilitating gas exchange.
Shock Absorber
A device in vehicles and machinery designed to dampen and absorb shock impulses, providing a smoother ride or operation.
Gas Exchange
The process by which oxygen is taken into the body and an exchange of carbon dioxide is expelled, primarily occurring in the lungs.
- Understand the mechanism of photosynthesis and the function of leaves within this mechanism.
- Explain the function and architecture of stomata in managing the exchange of gases and the reduction of water loss in plants.
Verified Answer
EM
Emily McLaughlinJun 14, 2024
Final Answer :
B
Explanation :
The spongy layer of a leaf is located beneath the palisade layer and is responsible for allowing gas exchange to occur through small openings called stomata. This layer contains air spaces that facilitate the diffusion of gases such as oxygen and carbon dioxide in and out of the leaf. While photosynthesis and vascular transport occur in the leaf, they are primarily functions of other leaf structures such as the chloroplasts and veins. Protein synthesis is a cellular process that occurs in the cytoplasm or on ribosomes, not specifically in the spongy layer of a leaf. Shock absorption is not a primary function of the spongy layer of a leaf, although it may contribute to the overall structural support of the leaf.
Learning Objectives
- Understand the mechanism of photosynthesis and the function of leaves within this mechanism.
- Explain the function and architecture of stomata in managing the exchange of gases and the reduction of water loss in plants.