1. All living things are composed of cells 2. Cells are made from other cells 3. Cells are the basic unit of organization and structure in life
1. All organisms start their life as a single cell 2. All metabolic activities occur in cells 3. Cells are structural and functional unit of life.
All cells are the result of pre-existing cells Cells Are the smallest forms of life All life is composed of cells
Interphase. The longest part of interphase is the G1 phase.
Interphase: when the cells is not reproducing and just performing its cell function
The major function of white blood-is the soldier of life
cells arise from pre-existing cells living things are made up of cells cells are the basic unit of life
G1 - Cell grows rapidly, this phase occupies the major portion of the cell's life. Cells that don't divide remain in the G1 phase S (Synthesis) - The cell's DNA is copied in this phase. at the end of this, each chromosome consists of two chromatids attached at the centromere G2 - Preparations are made for the nucleus to divide. Microtubules are rearranged during G2 in prep. for mitosis
For a significant portion of your life, brain cells in your head do not undergo mitosis.
For dividing cells the total length of division in 24 hours. G1 is typically the longest portion of dividing cells and can last up to 10 hours. Depending on the organism S phase can take anywhere from 5 to 6 hours. G2 takes 3-4 hours. and Mitosis takes about 2 hours Non dividing cell will enter into Go. Dividing embryonic cells proceed through g1 and g2 must faster