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Which component of cell membranes are embedded within the membrane and are exposed to both the inside and the outside of the cell?
Wiki User
∙ 11y ago
Trans-membrane proteins that can be used for active or passive transport of material into and out of the cell.
Wiki User
∙ 11y ago
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Which type of Epithelial Membrane lines all human body cavities that are exposed to the outside of the body?
Mucous Membranes is wrong... it is actually Serous Membranes - because they line the sealed, internal subdivisions of the ventral body cavity - cavities that are not open to the exterior. Face! In responce to whoever wrote what is above the question asks what membrane composed of epithelial tissue line cavities that OPEN to the OUTSIDE. It is the mucous membranes for following reasons: body membranes are formed by epithelial tissue and have an underlying layer of connective tissue. mucous membranes produce mucous that lubricates organs, trap dirt and debris, and keeps cavities from drying out. Mucous membranes line cavities that open out to the exterior, such as the nose, mouth, respirtory tract and anus. Serous membranes can be found lining the body cavities that do NOT open to the exterior.
What does mucouse membrane mean?
The mucous membranes (or mucosae; singular mucosa) are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. They are at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and glands is termed mucus. The term mucous membrane refers to where they are found in the bodyand not every mucous membrane secretes mucus.Body cavities featuring mucous membrane include most of the respiratory system. The glans penis (head of the penis) and glans clitoridis, along with the inside of the prepuce (foreskin) and the clitoral hood, are mucous membranes. The urethra is also a mucous membrane. The secreted mucus traps the pathogens in the body, preventing any further activities of diseases.
Is Cutaneous membrane a dry membrane exposed to air?
Yes, that would be a fair statement although your skin always has a degree of oil deposits on it to help with moisturizing.
Explain the part played by the cell membrane in the movement of substances into and out of the cell?
The correct answer is diffusion. Diffusion is the process by which materials enter and leave a cell through the cell membrane.
What type of membrane is wet and lines cavities that are exposed to the exterior and may be covered with cilia?
Mucosal
Why DNA is not a component of the plasma membrane?
The membrane is the most exposed part of the cell, it is chemically active and comes into contact with many chemicals. DNA here would be exposed to possible damage. Having the DNA enclosed in the nucleus and nuclear membrane better protects this very important "director" from potential damage.
What are the problems of danielli davison's model?
Problems with this model:This model assumes that all membranes are identical - this was known to be falseThe membrane proteins would be exposed to hydrophilic environments on all sides (from the phospholipids and from the water of the cytoplasm). This is not a stable configuration.
Which type of Epithelial Membrane lines all human body cavities that are exposed to the outside of the body?
Mucous Membranes is wrong... it is actually Serous Membranes - because they line the sealed, internal subdivisions of the ventral body cavity - cavities that are not open to the exterior. Face! In responce to whoever wrote what is above the question asks what membrane composed of epithelial tissue line cavities that OPEN to the OUTSIDE. It is the mucous membranes for following reasons: body membranes are formed by epithelial tissue and have an underlying layer of connective tissue. mucous membranes produce mucous that lubricates organs, trap dirt and debris, and keeps cavities from drying out. Mucous membranes line cavities that open out to the exterior, such as the nose, mouth, respirtory tract and anus. Serous membranes can be found lining the body cavities that do NOT open to the exterior.
What are the gaps called where the axon membrane is exposed?
Nodes of Ranvier
What does mucouse membrane mean?
The mucous membranes (or mucosae; singular mucosa) are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. They are at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and glands is termed mucus. The term mucous membrane refers to where they are found in the bodyand not every mucous membrane secretes mucus.Body cavities featuring mucous membrane include most of the respiratory system. The glans penis (head of the penis) and glans clitoridis, along with the inside of the prepuce (foreskin) and the clitoral hood, are mucous membranes. The urethra is also a mucous membrane. The secreted mucus traps the pathogens in the body, preventing any further activities of diseases.
What component of the soil will exposed rock eventually weather to form?
The mineral complainant.
Is Cutaneous membrane a dry membrane exposed to air?
Yes, that would be a fair statement although your skin always has a degree of oil deposits on it to help with moisturizing.
Explain the part played by the cell membrane in the movement of substances into and out of the cell?
The correct answer is diffusion. Diffusion is the process by which materials enter and leave a cell through the cell membrane.
What does conjunctiva mean?
The mucous membrane that lines the inside of the eyelid and the exposed surface of the eyeball.
Describe how schwann cells form the myelin sheath and the neurolemma encasing the nerve processes?
The Schwann cells wrap themselves tightly around the axon like a jellyroll. During the wrapping process, the cytoplasm is squeezed from between adjacent layers of the Schwann cell membranes, so that when the process is completed a tight core of plasma membrane material encompasses the axon. This wrapping is the myelin sheath. The Schwann cell nucleus and the bulk of its cytoplasm end up just beneath the outermost portion of its plasma membrane. This peripheral part of the Schwann cell and its exposed plasma membrane is the neurilemma.
What type of membrane is wet and lines cavities that are exposed to the exterior and may be covered with cilia?
Mucosal
Where are phospholipids found in the cell?
Phospholipids are mainly seen in the cellular membrane of all organisms. They are made of a charged phosphate group, a glycerol, and fatty acid tails. There are pairs of phospholipids with the tails facing each other and the charged ends facing away from each other.
