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AP Biology Cell Cycle Flashcards

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7687664916Cell cycleThe life of a cell from the time it is first formed from a dividing parent cell until its own division into two cells0
7687670238GenomeA cell's endowment of DNA, it's genetic information1
7687676980Somatic cellsAll body cells except gametes2
768768545446The number of chromosomes all eukaryotic organisms have in somatic cell nuclei3
7687702916MitosisThe process by which somatic cells divide, forming daughter cells that contain the same chromosome number as the parent cell. The division of the nucleus4
7687708212GametesWhat type of cells are sperm and egg cells?5
7687721474HaploidThe term used to describe the fact that human gametes have 23 chromosomes6
7687732508DiploidThe term used to describe the fact that eukaryotic somatic cell nuclei have 46 chromosomes7
7687737095MeiosisThe type of cell division that results in gametes8
7687754607Sister chromatidsWhen the chromosomes are replicated, each duplicated chromosome consists of two _______, each with identical DNA sequences. When they separate, they are considered individual chromosomes9
7687761961CentromereThe spot where two sister chromatids are attached10
7687768185CytokinesisThe division of the cell's cytoplasm. This comes after mitosis.11
7687826074Interphase, Prophase, Prometaphase, Metaphase, Anaphase, TelophaseStarting from interphase, list the phases of the cell cycle in order12
7687836590G1, S, G2List the primary event phases of interphase in order13
7687840777G1 phaseThe cell grows while carrying out cell functions unique to its cell type. What event of interphase is this?14
7687845739S phaseThe cell continues to carry out its unique functions but importantly duplicates its chromosomes, thus making a copy of the DNA that makes up the cell's chromosomes. What event of interphase is this?15
7687867099G2 phaseThis is the gap after the chromosomes have been duplicated and just before mitosis. What even of interphase is this?16
7687875961Prophase1. The chromatin becomes more tightly coiled into discrete chromosomes 2. The nucleoli disappear 3. The mitotic spindle (consisting of microtubules extending from the two centrosomes) begins to form in the cytoplasm17
7687890511Prometaphase1. The nuclear envelope begins to fragment, allowing the microtubules to attach to the chromosomes 2. The two chromatids of each chromosome are held together by protein kinetochores in the centromere region 3. The microtubules will attach to the kinetochores18
7687901774Metaphase1. The microtubules move the chromosomes to the metaphase plate at the equator of the cell. The microtubule complex is referred to as the spindle. 2. The centrioles have migrated to opposite poles in the cell, riding along on the developing spindle19
7687911705Anaphase1. Sister chromatids begin to separate, pulled apart by motor molecules interacting with kinetochore microtubules 2. The cell elongates, as the nonkinetochore microtubules ratchet apart with the help of motor molecules 3. By the end of anaphase, the opposite ends of the cell both contain complete and equal sets of chromosomes20
7687916403Telophase1. The nuclear envelopes reform around the sets of chromosomes located at opposite ends of the cell 2. The chromatin fiber of the chromosomes become less condensed 3. Cytokinesis begins, during which the cytoplasm of the cell is divided. In animal cells, a cleavage furrow forms to divide the cytoplasm. In plant cells, a cell plate forms instead21
7687958861Cell cycle control systemThe name given to what controls the steps of the cell cycle22
7688096252G1, G2, MList the major cell cycle checkpoints in order23
7688108063KinasesThe protein enzymes that control the cell cycle. Some of them give the go-ahead signals at the G1 and G2 checkpoints24
7688116664Cyclin proteinsKinases must be connected to _______ to remain active25
7688128151Cyclin dependent kinases (Cdk)Because kinases must be connected to cyclin to remain active, they are considered _______26
7688150277MPFCyclin molecules combined with Cdk molecules27
7688155281MPF switches itself offHow does the cell stop cell division? During anaphase ________, a process that leads to the destruction of cyclin molecules begins. Without cyclin molecules, Cdk molecules become inactive, bringing mitosis to halt28
7688174937G1 phase checkpointDuring the ________, if the cell gets the go-ahead signal, it usually completes the whole cell cycle and divides.29
7688210902G0 phaseIf it does not receive the go-ahead signal during the G1 phase checkpoint, it enters a nondividing phase called __________30
7688229066Density dependent inhibitionThe process in which crowded cells stop dividing31
7688235914Anchorage dependencyNormal cells must be attached to a substratum, like the extracellular matrix of a tissue, to divide32
7688244091TransformationThe process that changes a normal cell to a cancer cell33
7688247012TumorA mass of abnormal cells within otherwise normal tissue34
7688249151Benign tumorIf the abnormal cells remain at the original site, the lump is called a _________35
7688254284Malignant tumorIf the abnormal cells become invasive enough to impair the functions of one or more organs, the lump is called a ________. A patient with this is said to have cancer36
7688268686MetastasisThe process in which malignant tumors may have cells that separate from the original tumor and spread by entering blood vessels of lymph vessels.37

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