What is the main adhesion protein of connective tissues?
The primary connective tissue protein is collagen. Collagen content is often measured in meat to get an estimate of the amount of connective tissue. Fig. 9.8.
What makes up the ground substance of connective tissue?
The amorphous ground substance of connective tissue is a transparent material with the properties of a viscous solution or a highly hydrated thin gel. Its principal constituents are large carbohydrate molecules or complexes of protein and carbohydrate, called glycosaminoglycans (formerly known as mucopolysaccharides).
What type of connective tissue has calcified ground substance?
A/P 5.2 Organization of tissues- Connective review
| A | B |
|---|---|
| Which tissue contains a calcified ground substance and is specialized for structural support? | bone connective tissue |
| Which of the following is not a characteristic of Areolar connective tissue? | densly packed protein fibers |
What is the principal adhesive glycoprotein in connective tissue?
The most representative of these glycoproteins are integrins, which bind to collagen fibers and proteoglycans. In this manner, cell adhesion glycoproteins help cells to adhere to the extracellular matrix and hold various components of tissues to each other.
Which protein is not found in connective tissue?
Basement membrane is NOT found in connective tissue.
What type of protein makes up connective tissue apex?
Explanation: The fibrous proteins which are found in connective tissues of the animals are either collagen, elastic, or reticular fibers. This collagen fibers provide strengths to the connective tissues.
What types of protein fibers are produced by connective tissue cells?
Connective Tissue Fibers and Ground Substance Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long, straight fiber.
What is the ground substance in typical connective tissue matrix quizlet?
What is the ground substance in typical connective tissue matrix? interstitial fluid, proteoglycans, and cell adhesion proteins. Ground substance is a fluid or gel that occupies the space between connective tissue cells, fibers, or other matrix components.
What is cartilage ground substance?
Cartilage is a non-vascular type of supporting connective tissue that is found throughout the body . The main cell types in cartilage are chondrocytes, the ground substance is chondroitin sulfate, and the fibrous sheath is called perichondrium.
What are the three types of protein fibers in connective tissue?
The three types of connective tissue fibers are:
- Collagen fibers – most are type I collagen (most abundant protein in the body)
- Elastic fibers – contain elastin and fibrillin.
- Reticular fibers – contain type III collagen.
Is ground substance hydrophobic?
strongly hydrophilic. These properties mean that the GAG’s form a matrix like a sponge, that sucks in lots of water, like a porous hydrated gel, and they are good at resisting compressive forces.
What is the difference between glycoprotein and proteoglycan?
A glycoprotein is a compound containing carbohydrate (or glycan) covalently linked to protein. The carbohydrate may be in the form of a monosaccharide, disaccharide(s). Proteoglycans are a subclass of glycoproteins in which the carbohydrate units are polysaccharides that contain amino sugars.
What is the structure of elastic connective tissue?
Elastic connective tissue consists of collagenous fibers with interwoven elastic fibers. The distinctive appearance of cartilage is due to the presence of polysaccharides called chondroitin sulfates, which bind with ground substance proteins to form proteoglycans.
What type of fiber is embedded in ground substance?
All of these fiber types are embedded in ground substance. Secreted by fibroblasts, ground substance is made of water, polysaccharides, specifically hyaluronic acid, and proteins. These combine to form a proteoglycan with a protein core and polysaccharide branches.
What is the function of connective tissue in the human body?
As may be obvious from its name, one of the major functions of connective tissue is to connect tissues and organs. Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix.
Why are tendons and ligaments made of regular connective tissue?
Ligaments and tendons are made of dense regular connective tissue. In dense irregular connective tissue, the direction of fibers is random. This arrangement gives the tissue greater strength in all directions and less strength in one particular direction.