Complete the following table. State whether the cell reaction is spontaneous, nonspontaneous, or at equilibrium. E DG Cell Reaction . 0 . 0 5 0
Cells dividing One of the multiple chromosomes in a eukaryotic cell is represented here, not yet duplicated. Normally it would be a long thin chromatin fiber containing one DNA molecule and associated proteins. Once duplicated, a chromosome consists of two sister chromatids connected along their entire lengths by sister chromatid cohesion. Each chromatid contains a copy of the DNA molecule Molecular and mechanical processes separate the sister chromatids into two chromosomes and distribute them to two daughter cells Microtubule (above) Summary: - Actin forms long filaments (top picture) - Antiparallel myosin motors move these filaments - Actin-Myosin complexes make up contractile ring (left picture) - Myosin activity causes ring to contract, form cleavage furrow eventually break in two 1. Chromosome replication begins. Soon after, one copy of the origin moves rapidly towards the other end of the cell by a mechanism involving actin-like protein 2. Replication continues. One copy of the origin is now at each end of the cell. Meanwhile the cell elongates 3. Replication finishes. The plasma membrane is pinched inward by a tubulin- like protein and a new cell wall is deposited 4. Two daughter cells result 1. The cells must make enough material to give rise to two whole cells, these cells must be completely functional 2. The cells must copy all of its genetic information and distribute to daughter cells. DNA use be copied and passed with exquisite fidelity 3. The cell. It's segregate other c