Epidermal cells receive nutrients and oxygen from the blood vessels in the dermis.
The folds on epidermal cells, called microvilli, increase the cell's surface area for absorption and secretion. This increased surface area allows for more efficient exchange of molecules such as nutrients and waste products with the external environment.
Merkel cells compose about 8% of the epidermal cells. These specialized cells are found in the deepest part of the epidermis and are involved in the sensation of touch.
Epidermal cells are part of the epidermis, the outermost layer of plant cells that protect against water loss and pathogens. Palisade cells are found in the mesophyll layer of plant leaves and are responsible for photosynthesis. Veins are vascular tissues that transport water and nutrients throughout the plant.
The epidermal cells of an onion are located on the outermost layer of the onion bulb, forming a protective barrier.
To examine leaf epidermal cells, a leaf sample is typically cleared with a clearing solution to make the cells transparent. The cleared leaf sample is then mounted on a slide with a drop of water and covered with a coverslip. Finally, the sample is observed under a microscope to study the size, shape, and structure of the leaf epidermal cells.
Epidermal cells are supplied with nutrients from blood vessels in the
Cells in the blood do not provide nutrients to the other cells of the body. The nutrients are in the blood plasma (liquid). These nutrient diffuse through the vessel wall and travel to the bodies cells in the interstitial fluid (the fluid around individual cells). The epidermis does not have blood vessel running through it, so the nutrient must pass from the dermis layer of cells.
Melanocytes, which produce melanin for skin pigmentation, are found in human epidermal cells but not in leaf epidermal cells. Additionally, human epidermal cells contain structures like Langerhans cells for immune response, which are not present in leaf epidermal cells.
No, epidermal cells from petunia do not stain with phloroglucinol. Phloroglucinol is typically used to stain lignin in plant tissues, not epidermal cells. The stain mainly reacts with lignin, which is absent in the epidermal cells.
The folds on epidermal cells, called microvilli, increase the cell's surface area for absorption and secretion. This increased surface area allows for more efficient exchange of molecules such as nutrients and waste products with the external environment.
Langerhans cells
Merkel cells compose about 8% of the epidermal cells. These specialized cells are found in the deepest part of the epidermis and are involved in the sensation of touch.
HIV mainly attacks cells in the immune system. I'm not aware of a major impact on skin (epidermal) cells.
Ependymal cells
Epidermal cells are part of the epidermis, the outermost layer of plant cells that protect against water loss and pathogens. Palisade cells are found in the mesophyll layer of plant leaves and are responsible for photosynthesis. Veins are vascular tissues that transport water and nutrients throughout the plant.
The epidermal cells of an onion are located on the outermost layer of the onion bulb, forming a protective barrier.
Epidermal cells.