For the cell cycle to progress normally, the protein by Select one: a. cdk, a protease b. cyclin, apoptosis c. nuclear membrane, phosphorylation d. cyclin, a protease e. cdk, apoptosis must be destroyed
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- of my celle chose are wels smaller than normal. According to Model 1, what part(e) of the cell cycle is (ere) ou likely being affected? Some cancerus me 7. In Model 1, if the length of the arrow represents time, then for those cancerous cells, what hap pens to the time that is necessary for the cell cycle? What implication might this have for doctors who are treating cancer patients? Why? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the organism to survive. What process must occur to make a new, properly- functioning cell? Model 1 - Mitosis as Part of the Cell Cycle Prophase Metaphase Anaphase Mitosis How do living things grow and repair themselves! Replicated chromosome (2 sister chromatids) 0000 * Centriole Spindle fibers Nuclear membrane Telophase 1. Refer to Model 1. List the four phases in the mitosis process. 2. Where is mitosis in the cell cycle? Before 3. What three phases of the cell cycle…1. Which organelles is the main calcium store for signaling? Lyosome; ER; Golgi; secretary vesicles 2. A temperature sensitive mutant yeast strains/stops dividing when shifted from. 25 degrees Celsius to 37 degrees Celsius. These cells are analyzed at different temperatures by a machine that measures the amount of DNA they contain. What would explain the behavior of the mutant? Anaphase promoting complex is inactivatend; s cdk is inactivated; m cdk is inactivate; m cycling is overexposed 3.which of the following statements about proto oncogenes is true? Proto oncogenes inhibit cell growth and division; cancer cells often contain loss of function mutations in proto oncogenes; proto oncogenes are needed for cells in normal tissues; none 4. Which of the following statements about tumor suppressor genes is true? Gene amplification of a tumor suppressor gene is more dangerous than gene amplification of a proto oncogenes; tumor suppressor genes are more highly expressed in cancer cells…9A. Matching cell structures their functionsiutocues) Answer Structures Function Centrioles 1. Composed of proteins and rRNAs Cytosol 2. Region in prokaryotes contains a chromosome Golgi complex 3. ring of nine outer microtubule doublets (9+2 axoneme) Plasma membrane 4. Support the cell and protect against plasmolysis Ribosome 5. Composed of glycoprotein(s) and involved in transferring material into or out of the cell Transporters 6. contain hydrolytic enzymes and involved in autophagy Receptor 7. Composed of microtubules and sweep mucus out of respiratory tract Peroxisome 8. Controls which material can get in or out of the cell Nucleoid 9. Contains chromosomes and has nuclear envelope Cilia 10. Maintain membrane fluidity 11. contains necessary enzymes for that modify, sort, and package of proteins or lipids for extracellular or intracellular use 12. Fluids baths between organelles 13. Is a ligand-binding site and can receive specific signals from out of the cell 14. Contains catalase…
- Which phase is described below? The chromosomes condense, Each is made of two sister chromatids,(looks) like an "X" Each sister is a clone, the closest of kin, And acentromere connects them like siamese twinsThe nucleolus disappears it melts away, as the cell takes a ribosomeproduction holiday, the centrosomes separate, start spindle formationfor separating chromatids and cell elongation.In the cell cycle it is necessary for interphase to happen before mitosis and cytokinesis creates 2 identical c Why is interphase neccessary? What is 1 major reason that mitosis wouldn't work without interphase happening first? INTERPHASE (DNA synthesis) Cytokinesis Mitosis MITOTIC PHASE (M) G2 C oParn acaton, p Cing (level 1) étv MacBook Air 80 888 DD FS F6 F7 F8 F9 F10 F3 # $ % & 3 4 5 9. 7 8 9 E Y U D H J K * COThe cell cycle is regulated by O Internal signals External signals Internal and external signals O Apoptosis
- Which of the following is least likely to result in the formation of a cancerous cell? A Dysfunction results in the permanent activation of a cell division pathway in the absence of the appropriate ligand. B с D Separation of chromatids during mitosis occurs without all centromeres being attached to spindle fibers from both poles. A dysfunction in a cell cycle checkpoint prevents a cell from entering the S phase. A dysfunction causes the inability to produce cancer-suppressing proteins.8. Why do you think cytokinesis usually occurs in the middle or midpoint of the cell? What would happen if it did not (if it happened in the corner or on the side and not in the center)? 9. Interphase is divided into 3 parts, list them and indicate what major things happen during each part. Stage of Interphase Description of major activitiesApoptosis O is programmed cell death. O is a process that acts to decrease the number of somatic cells. O frees the fingers and toes of the human embryo from their webbed structure to independent structures. O All of the choices are correct. PRINECOMA3_...pptx MacBook Air F3 F4 F5 F6 F7 F8 F9 #3 2$ & 4 8. E R Y U D K C- V 3D V B
- The darkly stained structures in this cell are O microtubules, O strands of chromatin. O spindle fibers. O centrosomes. O chromosomes. PRINECOMA3_..pptx O PRINECOMA3_I.pptx MacBook Air 888 DII F2 F3 F4 F5 F6 F7 F8 F9 F10 @ #3 $ & 3 4 6. 7 W E Y G H J K * CO O O O OCELL GRAPHIC ORGANIZER Name which makes 000 ike 14 to make proteins occccceee Nucleus yônong sapiN which is made of CELLS organelles contains- Such as which maikes Cell Membrane (14. which is across thee which contun a lonn of creates enzymes (20 1. vhich allows for 16. 17 used tor -subtances Word Bank breaking down | osmosis | lysosomes mitochondria | nucleolus endoplasmic reticulum | vesicles | ATP | ribosomes | DNA Inaulin | diffusion | Golgi body | energy | export1 cytoplasmmtosis chromatinl delivery system/ semipermeableB. Sequence the following events based on when they happen in the cell, starting from the interphase. Write A for the earliest event a nd UNDERSTAND for the latest. 1. G2 phase 2. G1 phase 3. Metaphase 4. Anaphase 5. Cytokinesis 6. Telophase 7. Metaphase checkpoint 8. G1 checkpoint 9. G2 checkpoint 10. Prophase