Complete the following table.
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Answers
Answer:
i)skin
ii)bones
iii) muscles
iv)blood
Explanation:
Answer:
1. Melanin and Keratin is found in Epidermis of the skin.
2. Ossein is found in bones.
3. Actin and Myosin is located in Sacromere.
4. Haemoglobin is found in RBCs whereas Antibodies are found in blood and other tissues and fluids.
Explanation:
1. Keratinocytes or squamous cells are in the middle layer of the epidermis and produce keratin, the protein that forms the protective outer layer. Keratin also is used to produce hair and nails. Melanocytes make melanin, the pigment that provides color to the skin.
2. Ossein is the organic extracellular matrix of bone, which is made of 95% collagen. It can be isolated by treating bones with hydrochloric acid, which dissolves the inorganic matrix (calcium phosphate and calcium carbonate). This substance is used in industry for the production of gelatin and bone glue.
3. The actin filaments are attached at their plus ends to the Z disc, which includes the crosslinking protein α-actinin. The myosin filaments are anchored at the M line in the middle of the sarcomere.
4. A. hemoglobin, also spelled haemoglobin, iron-containing protein in the blood of many animals—in the red blood cells (erythrocytes) of vertebrates—that transports oxygen to the tissues.
B. Antibodies and immunoglobulins
Immunoglobulins are found in blood and other tissues and fluids. They are made by the plasma cells that are derived from the B cells of the immune system. B cells of the immune system become plasma cells when activated by the binding of a specific antigen on its antibody surfaces.
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