Question

1. practice: process of protein synthesis

question 4
whats tissue, and how does it relate to individual cells?
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question 5
virtually all cells in the human body have the same dna. what makes some undifferentiated cells differentiate into brain cells and other undifferentiated cells specialize as bone cells?
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question 6
whats the difference between totipotent, pluripotent, and multipotent stem cells? discuss the three main types of stem cells and their differentiation potential.

Explanation:

Question 4: Tissue is a group of similar cells that work together to perform a specific function. Individual cells make up tissues. For example, muscle cells form muscle tissue.
Question 5: Gene - regulation mechanisms control which genes are expressed in undifferentiated cells. Different sets of expressed genes lead to the differentiation of cells into brain cells or bone cells.
Question 6: Totipotent stem cells can differentiate into any cell type, including extra - embryonic cells. Pluripotent stem cells can differentiate into almost all cell types in the body but not extra - embryonic cells. Multipotent stem cells can differentiate into a limited number of related cell types within a specific tissue or organ.

Answer:

Question 4: Tissue is a collection of similar cells performing a specific function. It is made up of individual cells.
Question 5: Gene - regulation determines cell differentiation into different cell types.
Question 6: Totipotent can form all cell types including extra - embryonic; pluripotent can form most body cell types; multipotent can form a limited number of related cell types.