Packing palisade cells tightly together means that the maximum amount of light can be intercepted. If there are big gaps between the cells then more of the light hitting the leaf will just pass straight through.
Palisade cells are responsible for most of the photosynthesis in the leaf. They are packed tightly together to maximize the amount of light they can absorb.
They aren't, the palisade layer is, the spongy layer is loose
Palisade
The upper leaf cells are tightly packed to trap the energy in sunlight.From: -Pearson Education,Inc.
Tightly packed cells
epithelial
Epithelial tissues are sheets of tightly packed cells that line organs and body cavities.
Packing palisade cells tightly together means that the maximum amount of light can be intercepted. If there are big gaps between the cells then more of the light hitting the leaf will just pass straight through. Tightly packed palisade cells is one way in which leaves are adapted for photosynthesis.
Palisade
The upper leaf cells are tightly packed to trap the energy in sunlight.From: -Pearson Education,Inc.
Tightly packed cells
Dense Connective Tissue
The cells of bread mold are loosely arranged. This is the opposite of the cells of mushrooms which are packed tightly together.
Endothelial cells form the vascular network but acquire very different characteristics depending on their location. In the brain, endothelial cells are tightly packed to provide the brain-blood barrier that protects the brain from blood toxins. In the endocrine gland, endothelial cells are leaky and cause fenestrations to allow hormone trafficking throughout the body. In general, how tightly packed vascular network cells are depends on which area they are located.
It helps prevent water loss
Epithelial tissues are sheets of tightly packed cells that line organs and body cavities.
Epithelial tissues are sheets of tightly packed cells that line organs and body cavities.
epithelial
chlorophyll