Virtual Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell- Anaphase b. Chromatin coils to form visible chromosomes - Prophase c. The nuclear membrane disappears- Prophase d. Sister chromatids line up in the center of the cell- Metaphase 2. In which phases of mitosis are sister chromatids visible‚ and attached to each other at the centromere? Metaphase
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Cell Growth and Reproduction Study Guide The Cell Cycle Study Guide Vocabulary – Cell Cycle‚ Mitosis‚ Cytokinesis 1. How did the G1 and G2 stages get their names? 2. Cells must pass through a critical checkpoint during which two stages of the cell cycle? 3. Where does DNA synthesis happen in eukaryotic cells? 4. What two processes make up the M stage? 5. Among different types of cells‚ which stage of the cell cycle varies most in length? 6. Why does a skin cell divide
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1. What are the different restriction points of the cell cycle? Describe each. G1 (Restriction) Checkpoint * End of G1‚ just before onset of the S phase (DNA replication) * Yeast “start”; other eukaryotes “restriction point” * The options for the cell at this point: * divide‚ delay division‚ or exit the cell cycle * Cells can exit the cell cycle at this point into an arrested stage (G0) * When this checkpoint is passed‚ cdk4 and cyclin D
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8.1.1 The Eukaryotic cell cycle 1. If a cell is in a state in which it no longer divides then the cell is probably arrested at which stage of the cell cycle? A) G1 2. Interphase of the cell cycle lasts longer than mitosis? A) TRUE - A cell spends about 90% of its life in interphase of the cell cycle‚ while it spends only about 10% of its life in M phase. 3. When does DNA replication occur in the cell cycle? A) Interphase 4. Which statement about the cell cycle is incorrect? C) In G2
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Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell b. Chromatin coils to form visible chromosomes c. The nuclear membrane disappears d. Sister chromatids line up in the center of the cell 2. In which phases of mitosis are sister chromatids visible‚ and attached to each other at the centromere? Table 1: Record your data for the number of cells in each stage
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2-3 × 1013 red blood cells at any given time (women have about 4-5 million erythrocytes per cubic millimeter of blood and men about 5-6 million). Red blood cells are thus much more common than the other blood particles: about 4-11 thousand white blood cells per cubic millimeter‚ and about 150-400 thousand platelets per cubic millimeter. The red blood cells store collectively about 3.5 grams of iron; that’s more than five times the iron stored by all the other tissues combined. The blood types of humans
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HOW THE CELL CYCLE OPERATES A cell is a dynamic system. It is "born‚" lives‚ grows‚ reproduces‚ and dies. Each cell works like an automated factory‚ duplicating parts of it. It interacts with its environment‚ sending and receiving signals—electrical and chemical—to act on or cause action elsewhere‚ and guarding against invaders or aggressively attacking other cells. A cell changes shape‚ moves off to another place‚ and sometimes links up with other cells. There used to be two cell-cycle theories
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example of the urinary system working with the respiratory system to regulate blood pH would be A) When you hold your breath the kidneys will remove CO2 from your blood B) If you exercise a lot your urine will become more acidic * C) If you develop emphysema the kidneys will remove fewer bicarbonate ions from circulation D) If you hyperventilate the kidneys will counteract the alkalinity by adding hydrogen ions into the blood stream E) None of the above-the urinary system never works with the respiratory
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purpose of the investigation is to determine the time an onion cell spends in each part of the cell cycle. B. The significance of this investigation is to help us understand and know how long cells are undergoing mitosis. My personal interest is to know the phases of mitosis in cells in order to someday help find cures for cancer. C. The cell cycle is a chronological set of events‚ culminating in cell growth and division into two daughter cells. Some of the reasons why mitosis occurs include growth‚ tissue
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THE CELL CYCLE WORKSHEET Name: ___________________________________ Matching: match the term to the description |A. Prophase |B. Interphase |C. Telophase |D. Metaphase |E. Anaphase | _____ 1. The sister chromatids are moving apart. _____ 2. The nucleolus begins to fade from view. _____ 3. A new nuclear membrane is forming around the chromosomes. _____ 4. The cytoplasm of the cell is
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