Download Cell Cycle and Mitosis

Cell Cycle and Mitosis
THE CELL CYCLE
The cell cycle is the series of events that take place in a eukaryotic cell between its formation and
the moment it replicates itself. These events can be divided in two main parts: interphase & the mitotic
phase (M mitosis). Thus, cell-division cycle is an essential process by which a single-cell fertilized egg
develops into a mature organism and the process by which hair, skin, blood cells, and some internal organs
are formed.
1. What is meant by the cell cycle?
5. Use page 281 in your text book to label & COLOR interphase and cell division. Notice that Interphase has 3
stages and Cell Division has 4 mitosis phases and cytokinesis.
1. In which phase does most cell growth occur ________________________
2. In which phase does DNA replication occurs________________________
3. In which phase does preparation for mitosis occur_____________________
4. In which phase does mitosis and cytokinesis occur ____________________.
5. Which three phases make up interphase?
________________
6. The division of the cell nucleus during the M phase of the cell cycle is called
.
7. Match the process with the correct phase.
S
A. Cells do most of their growing.
G2
B. Chromosomes are replicated, and the synthesis of DNA molecules takes place.
G1
C. Many of the organelles and molecules required for cell division are produced.
Fill in the blank:
Write the word. Some will be used more than once. See Book Chapter 10.
A. Prophase
D. Metaphase
G. Chromatid
J. Spindle fiber
B. Interphase
E. Anaphase
H. Cytokinesis
K. Cell Plate
C. Telophase
F. Centromere
I. Mitosis
________________1. What phase are daughter cells in as a result of mitosis in which the cell is carrying out
regular day to day activities and growing?
________________2. During what phase of mitosis do centromeres divide and the chromosomes move toward
their respective poles?
________________3. What is the phase where chromatin condenses to form chromosomes?
________________4. What is the name of the structure that connects the two chromatids?
________________5. In a chromosome pair connected by a centromere, what is each individual
chromosome called?
________________
________________6. What are the two parts of cell division?
________________7. What structure forms in prophase along which the chromosomes move?
________________8. Which phase of mitosis is the last phase that chromatids are together?
________________9. Which phase of the cell cycle is characterized by a non-dividing cell?
________________10. What structure is produced when protein fibers radiate from centrioles?
________________11. What forms across the center of a cell near the end of telophase in plate cells?
________________12. The period of cell growth and development between mitotic divisions?
________________13. What is the phase that is often called the reverse of prophase?