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33 Cards in this Set
- Front
- Back
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As cell becomes larger, its
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volume increases faster than its surface area
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When during the cell cycle is a cell's DNA replicated?
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S phase
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What event occurs during interphase?
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the cell grows
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During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
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metaphase
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What is the role of the spindle during mitosis?
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It helps separate the chromosomes
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The two main stages of cell division are called
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mitosis and cytokinesis
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What facor can stop normal cells from growing?
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contact with other cells
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cyclins are a family of cloesly related proteins that
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regulate the cell cycle
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cancer is a disorder in which some cells have lost the ability to control their
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growth rate
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Compared with small cells, large cells have more trouble...
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moving needed materials in and water products out
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the process by which a cell divides into two daughter cells is called
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cell division
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series of events that cells go through as they grow and divide is the
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cell cycle
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What happens when cells come into contact with other cells?
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they stop growing
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What is a tumor?
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a mass of cancer cells
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The larger a cell becomes, the _______ efficiently it is able to function.
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less
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Before a normal cell becomes too large to carry out normal activities, it will usually divide to form two ______ cells
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daughter
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Proteins that regulate the cell cycle based on event events inside the cell are called?
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internal regulators
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In all forms of _____, certain cells fail to respond to the signals that regulate the cell cycle of most cells
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cancer
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The process by which a cell divides into two daughter cells is called?
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cell division
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Together, the G1 phase, S phase, and G2 phase are called
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interphase
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Another name for cell division is the ?
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M phase
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What is interphase?
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the cell grows and replicates its DNA and centrioles
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Identify a factor that can stop cells from growing.
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When cells come into contact together they stop growing.
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List two problems that growth causes for cells.
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having trouble moving waste in and out
having too much demand on DNA |
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Why are chromosomes not visible in most cells except during cell division?
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the chromosomes are spread throughout the nucleus
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g1 phase
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cells increase in size
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s phase
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dna replicates
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g2 phase
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the cells prepare for cell division
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How do cancer cells differ from normal cells?
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cancer cells normally have a defect in their receptor proteins on the membrane.
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prophase
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chromosomes condense and become visible, the nuclear membrane breaks down
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metaphase
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hromosomes are aligned along the center of the cell
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anaphase
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hromosomes move to opposite ends of the cell
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telophase
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hromosomes of daughter cells are grouped in new nuclei.
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