PPT-The Cell Cycle Why are cells so small??

What limits the size of a cell Most cells are between 002 2 millimeters What limits the size of a cell Diffusion Very fast and efficient over short distances Becomes slow and inefficient as the distances become larger. Denition :Anr-cycleisdenotedby(i1i2:::ir):Example :11=(1)1cycle1212=(1)1cycle1221=(12)2cycle123321=(13)2cycle123231=(123)3cycle12344312=(1423)4cycle1234535421=(13425)5cycle12345 Unit 5. Welcome Back! . Musical Chairs. TODAY:. Notes on Cell Cycle. Become medical school students on oncology . rotation. Homework for next time: Watch Bozeman video on cell cycle, mitosis and meiosis. There *may* be a quiz.. Just like people have phases of development,. Cells have phases too.. In somatic (body) cells, a parent cell produces 2 daughter cells.. The purpose of mitosis is for growth and repair of tissue.. Three Phases or Stages. SA:V = 6S. 2. /S. 3. . where S=length of one side . We use cubes for simplicity of the math. In real life cells are more like spheres, but the concept remains the same.. Surface area. dictates amount of exchange across the . Means “to move the cell”. Approximately 5% of cell’s life. Process differs in . Heterotrophs. (Animals) . Autotrophs. (Plants) due to presence of cell wall. HETEROTROPHS. AUTOTROPHS. Cell. membrane . simpler. Ex: the flu. A virus with this type of cycle makes you sick right away. What about the other type of life cycle?. The . Lysogenic. Cycle. The . lysogenic. cycle is slower and more complex. Unicellular organism- cell division reproduces . an entire . organism. Multicellular. organisms- cell . division . can . produce . growth or progeny. Cell . division functions in reproduction, growth, and repair. You Must Know. Ways that the cell cycle is regulated.. Ways in which the normal cell cycle is disrupted to cause cancer. . Concept 9.3: The eukaryotic cell cycle is regulated by a molecular control system. 1. How many phases are in the cell cycle as shown in the diagram in Model 1?. Four.. 2. Starting at the starred cell, what is the order of the stages of a cell’s life?. G1, S, G2, M.. 3. During which phase does the size of the cell increase?. Phases of the cell cycle. Interphase. Mitotic Phase. Interphase. G1. - a cell grows and develops. S. - a cell continues to grow but copies its DNA. G2. - still growing but begins to store energy and get ready to divide. The Mitosis Puzzle. Lay blank sheet lengthwise .. Write Interphase, Prophase, Metaphase, Anaphase, & . Telophase. across the top of the sheet.. Cut out the cell diagrams and tape/glue them across the top under the appropriate phase label.. . During the cell cycle, a cell grows, prepares for division, and divides to form two identical daughter cells, each. of which then begins the cycle again.. The series of events that cells go through as they grow and divide.. The cell cycle, or cell-division cycle, is the series of events that takes place in a cell leading to its division and duplication (replication). . In cells without a nucleus (prokaryotes), the cell cycle occurs via a process termed . It is the growth and division of single cell into daughter cells and duplication (replication).. In . prokaryotic cells, . the cell cycle occurs via process termed binary fission.. In . eukaryotic cells, .