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What is the structure and function of an onion epidermal cell?
The structure of an onion epidermal cell consists of a cell wall, cell membrane, cytoplasm, and a large central vacuole. The function of an onion epidermal cell is to provide protection for the plant, regulate water and nutrient uptake, and help with gas exchange through stomata.
How do you examine leaf epidermal cell?
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.
What is the function of epidermal cells in sponges?
Epidermal cells in sponges serve as a protective barrier, helping to prevent pathogens and debris from entering the sponge's body. They also play a role in gas exchange and waste removal by allowing for the diffusion of molecules across their cell membranes. Additionally, epidermal cells can secrete substances that aid in capturing food particles from the water.
What cell structure is in the guard cells but not in other epidermal cells?
Guard cells contain chloroplasts, which are responsible for photosynthesis, while other epidermal cells do not typically contain chloroplasts. Chloroplasts are important for the production of sugars and energy through the process of photosynthesis in guard cells.
Why do the epidermal cells have had there edges folded over?
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.
What structure surrounds the stomata?
Epidermal cells surround the stomata.
The pigmented muscular structure that allows light to pass through is the?
iris
What structure is responsible for the strength of attachment between the epidermis and dermis?
epidermal ridge
What is the structure and function of an onion epidermal cell?
The structure of an onion epidermal cell consists of a cell wall, cell membrane, cytoplasm, and a large central vacuole. The function of an onion epidermal cell is to provide protection for the plant, regulate water and nutrient uptake, and help with gas exchange through stomata.
Which structure in an onion epidermal cell is semipermeable?
The cell membrane is the semipermeable structure in an onion epidermal cell. It regulates the passage of molecules in and out of the cell, allowing only certain substances to pass through while restricting others.
What is filamentous?
Filamentous cytoskeleton is the cellular structure within the cytoplasm in every cell that helps it to keep its structure, protect the cell and allows cellular motion (using appendages like flagella, cilia, etc.). It also plays a role in intracellular transport and cellular division. The cytoskeleton is found in Eukaryotic and Prokaryotic cells.
The tough protective protein found in the epidermal cells is called?
The tough protective protein found in epidermal cells is called keratin. Keratin helps to provide strength and structure to the skin, hair, and nails.
How do you examine leaf epidermal cell?
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.
What is the structure of filamentous algae?
Filamentous algae consists of long, thread-like strands made up of multiple cells joined end-to-end. These strands can be branched or unbranched, forming a mat-like structure. The cells of filamentous algae contain chlorophyll for photosynthesis and can reproduce by fragmentation or forming spores.
Long filamentous organelle with a banded appearance?
This description matches a structure called a myofibril, which is found in muscle cells. Myofibrils are made up of repeating units called sarcomeres that give them a banded appearance. They are responsible for muscle contractions by interacting with motor proteins.
What is the function of epidermal cells in sponges?
Epidermal cells in sponges serve as a protective barrier, helping to prevent pathogens and debris from entering the sponge's body. They also play a role in gas exchange and waste removal by allowing for the diffusion of molecules across their cell membranes. Additionally, epidermal cells can secrete substances that aid in capturing food particles from the water.
What cell structure is in the guard cells but not in other epidermal cells?
Guard cells contain chloroplasts, which are responsible for photosynthesis, while other epidermal cells do not typically contain chloroplasts. Chloroplasts are important for the production of sugars and energy through the process of photosynthesis in guard cells.
