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1.Why is the lysosome considered as the suicide bag of the cell?
2. What characteristics does golgi apparatus have to be considered as the packaging
center of the cell?
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- 9. The Golgi apparatus has a polarity or sidedness (ie., cis and trans faces) to its structure and function. Which of the following statements correctly describes this polarity? A) Transport vesicles fuse with one side of the Golgi and leave from the opposite side. B) Proteins in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other. C) Soluble proteins in the cisternae (interior) of the Golgi may be sorted and modified as they move from one side of the Golgi to the other. D) All of the above correctly describe polar characteristics of the Golgi function.5. Mark the INCORRECT statement about nuclear lamina.a) Filaments present in the inner membrane of the nucleusb) Made up of lamin proteinsc) Provide mechanical support to the nucleusd) It has bounded with the ribosomesWhich of the following sequences correctly lists in order the steps involved in the incorporation of a proteinaceous molecule within a cell? protein synthesis of the protein on the ribosome; modification in the Golgi apparatus; packaging in the endoplasmic reticulum; tagging in the vesicle synthesis of the protein on the lysosome; tagging in the Golgi; packaging in the vesicle; distribution in the endoplasmic reticulum synthesis of the protein on the ribosome; modification in the endoplasmic reticulum; tagging in the Golgi; distribution via the vesicle synthesis of the protein on the lysosome; packaging in the vesicle; distribution via the Golgi; tagging in the endoplasmic reticulum
- 1. How is the cell membrane is regarded as the gatekeeper. ref : https://www.youtube.com/watch?v=qBCVVszQQNs1) Describe the role of the signal sequence and the signal recognition particle (SRP) in targeting and processing proteins in the endoplasmic reticulum. 2) What is the function of the trans-Golgi network?1. Match the cell structures in column A with their functions in column B. Column A 1. 2. 3. 4. 5. Centrioles Chromatin Cytoplasm Cytoskeleton Rough Endoplasmic Reticulum (ER) 6. 7. 8. 9. 10. 11. Peroxisomes 12. Plasma membrane Golgi apparatus Lysosomes Mitochondria Nucleolus Nucleus 13. Ribosomes Column B a. a selectively permeable barrier between the cell's intracellular and extracellular environments b. includes cellular organelles and cytosol c. contains the cell's genetic material (DNA) d. synthesizes rRNA and assembles ribosomes in the nucleus e. genetic material within the nucleus; consists of uncoiled chromosomes and associated proteins f. synthesizes new proteins destined for the plasma membrane, lysosomes, or secretion from the cell g. sites of protein synthesis; may be bound to the ER ("bound") or found within the cytoplasm ("free") h. a stack of flattened membranes that are the site where proteins from the ER are modified, packaged, and sorted for delivery to other…
- A function of the lysosome is... To process energy for the cell House enzymes that break down substances Produce proteins Provide structural support to the cell1. Which is the membranous part that transports substance and serves as a site of lipid synthesis? Is it a smooth ER or a rough ER? 2. What is the energy storage of the cell? 3. What are the five parts of a cell that is present in both plant and animal cells? 4. What are the four parts of a cell that serves as the transport system of a cell?2) Explain how the following cell transport systems work moving materials around inside the cell and other functions. Focus on structure and function, and Include how energy is used to accomplish these movements. A)Tubulin/Kinesin B)Actin/Myosin
- Discuss the 4 major processes of lysosomes.9. The precursors of the pigments (tryptophan and guanine) need to be transported into the lysosome-related organelles that produce the pigments. There is a membrane- spanning permease system, including ATP binding cassette transporters, that allow for the precursors to be imported into the organelles. These transporters are made of two separate proteins. One transporter is made of a dimer of the white protein and the brown protein. The other transporter is made of a dimer of the white protein and the scarlet protein. a. At a cellular and biochemical level, explain what happens in brown mutants. What pteridines would you expect to see in these mutants? Is this what you observed? Explain any discrepancies. b. At a cellular and biochemical level, explain what happens in scarlet mutants. What pteridines would you expect to see in these mutants? Is this what you observed? Explain any discrepancies. At a cellular and biochemical level, explain what happens in white mutants. What pteridines…18. What specific proteins make up the cellular cytoskeleton? What protein would you use to look at spindle fibers?