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- - Why the cells are capable to maintain the homeostasis? 5.- Please name the organelles in the cell, and explain Golgi Apparatus, and Nucleolus: __________________.liges 3. Tyrosine kinase receptors are pairs of proteins that span the plasma membrane. On the extracellular side of the membrane, one or more sites are present that bind to signaling ligands such as insulin or growth factors. On the intracellular side, the enas of peptide chains on each protein phosphorylate the other member of the pair, providing active docking sites that initiate cellular responses. The signal is switched off by dissociation of the ligand. For each ligand-receptor system, the equilibrium constant, k, controls the distribution of receptor-bound and unbound ligands. In systems with large values of k, a site is likely to be occupied, even at low concentrations of ligand. When k is small, the likelihood of binding is low, even when the concentration of ligand is high. To initiate a new stimulus response cycle for the receptor, the ligand must dissociate. Larger values of k mean that the receptor is more likely to be occupied and thus unavailable to bind another ligand.…Q/Choose between parentheses 1-the cell cycle included three phases are........ * (interphase,Mitosis,Cytokinesis/ Mitosis, interphase, cytokinesis/ cytokinesis , interphase , Mitosis/ interphase ,prophase, cytokinesis, metaphase) 2-What the name of structure is plays a significant role in the internal organization of the cell by synthesizing selective molecules and processing, directing and sorting them to their appropriate locations. * (Endoplasmic Reticulum/Mitochondria/Golgi bodies/ Rough Endoplasmic Reticulum) 3-cell membrane formed of .................phospholipid * (bilipid layer/one lipid layer/ tri lipid layer/four lipid layer)
- Disorder 5 is associated with the..... Group of answer choices peroxisome ribosome endoplasmic reticulum mitochrondria10 Use the drop-down menus to complete the statements. A cell can be differentiated replaced during mitosis. Chromosomes are separated replicated during interphase and become separated replicated during mitosis. The cell divides in two during mitosis interphase cytokinesis , resulting in daughter cells that are separated replicated the parent cell. identical to different fromMatch the following cell structures with their descriptions. 1. Fibers of the cytoskeleton that attach to chromosomes and move them during mitosis 2. Cell junctions that seal cells so tightly together that materials cannot pass between the cells Cilia Intermediate filaments 3. Cell surface appendages that contain microtubules and beat to move substances across the surface Tight junctions of a cell 4. The network of many types of protein fibers that gives shape to the cell and anchors the organelles Microtubules Desmosomes 5. Cell junctions that link the cytoskeleton of adjacent cells in order to prevent the cells from being pulled apart Microfilaments/actin filaments 6. Fibers of the cytoskeleton that allow cells such as amoebae to crawl around
- Mitosisis divided into phases. Match the phase to its characteristic. Chromosomes begin to relax, and new nuclear membranes form Sister chromatids are pulled apart by microtubules of the spindle Condensed chromosomes line up in the center of the cell Nuclear membrane breaks down, chromosomes attach to microtubules Chromosomes begin to condense Cell physically divides (cytoplasm is divided)All changes saved 5. Match each phase of mitosis with the event that happens during that phase. 1. anaphase a. chromosomes start to unravel and spindle fibers disappear sister chromatids are pulled to opposite ends of the cell 2. metaphase C. chromosomes align along the middle of the cell 3. prophase d. spindle fibers begin to attach to kinetochores of each chromosome 4. telophase9A. 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…
- Bio-123 Mitosis Post Lab 7. Complete in the following diagrams that show mitosis ina cell (2n 4). One homologous pair of chromosomes has alleles "A" and "a" and the other homologous pair has alleles "B" and "b". Try using COLORED PENCILS (not required) to aid you in following the chromosomes to their final destination. Gt Interphase G2 Interphase cell membrane nuclear membrane Prophase A DNA synthesis a AаBb AAaaBBbb prandapha se ? alfe Jure yau middie of cell when yee theu yau enarts andfaner a. g oppostesidles nedeus relerhs Metaphase Anaphase metaphase plate plantoivison Uevagra, only plant cell's. Nol an ma cells. Telophase chradds Chrandson Sister Chrenahids Interphase following Mitosis B tnaueachIdentify: 11. Single mitochondrion with large DNA associated with the basal body in the Trypanosome’s.In humans, are used to move a cell within its environment while are used to move the environment relative to the cell. cilia, pseudopodia flagella; cilia microtubules; flagella microfilaments; microtubules