Which cell functions as part of the immune system?a. keratinocyte,b. melanocyte,c. dendritic cell,d. tactile epithelial cell.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. The primary skin pigment is melanin, which is derived from the amino acid tyrosine.c

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. Melanin is produced by melanocytes and covers the nuclei of neighboring dendritic cells.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

c. Carotene is a brown-black pigment that accumulates in the stratum corneum.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. The pigment hemoglobin in red blood cells gives skin a pinkish hue when it binds high amounts of oxygen.

Would you expect to find more keratin in keratinocytes closer to the external surface of the skin (more superficial) or further from the external surface of the skin (deeper)?