1. The chemical factors required a. Vitamins b. carbon source c. Amino acids d. Balanced salt solution e. Phenol red eye f. HEPES buffer 2. Physical and environmental factors a. Temperature 37oC b. CO2 5% c. relative humidity 95% 4. Focal adhesion: The adhesive contact between the cell and extracellular matrix using the different membrane anchor proteins from the cell. Filopodia: Long slender extensions which extend beyond the leading edge of the lamellipodia. Lamellipodia: It is a flattened extension of the cell with which the cell moves or binds to a surface. Solution 1. The chemical factors required a. Vitamins b. carbon source c. Amino acids d. Balanced salt solution e. Phenol red eye f. HEPES buffer 2. Physical and environmental factors a. Temperature 37oC b. CO2 5% c. relative humidity 95% 4. Focal adhesion: The adhesive contact between the cell and extracellular matrix using the different membrane anchor proteins from the cell. Filopodia: Long slender extensions which extend beyond the leading edge of the lamellipodia. Lamellipodia: It is a flattened extension of the cell with which the cell moves or binds to a surface..