4 . About Peroxisome .what is wrong? A. has similar structure to lysosomes they are smaller. B.contains several oxidases and can protect the cell from the harmful effect of ak سن التأثير الضار لبيروكسيد الهيدرو جين hydrogen peroxide. c. A bundent in liver cells and can detoxify alcohol d. Failure of function can result in Parkinson disease
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- Each of the following statement FALSE. Tell me what is incorrect with the statement and correct it when possible. For example, if the statement says: the sky is red during daytime. You would answer: the sky isn’t red during daytime, it is blue. a. Staphylococcus aureus use MreB proteins to organize their morphology (shape) into cocci. b. Most bacteria will have maximum growth in a glucose-rich environment such as maple syrup. c. The table below shows that Streptococcus pyogenes is a facultative halophile. d. Your lab supervisor asks you to grow a new bacterium they got from a collaborator. You grow them in the suggested nutrient-rich media, and you notice that as the log phase growth progresses, the bacteria seem to turn purple. You mention it to your supervisor and ask whether it is the gradient from very high to low nutrient bioavailability that induces metabolic changes which induces the production of a purple pigment. Your supervisor tells you that is unlikely. What is a more…Matching I. Match the terms below with the corresponding subsequent item. a. carboxyl b. cristae a. microfilament d. nuclear pore complex e. rough endoplasmic reticulum f. sulfhydryl g. phosphate h. vacuole i. hydroxyl j. Golgi apparatus k. carbonyl 1. granum m. stroma n. amino o. cell wall 76. thick liquid that surrounds thylakoids 7. –s-H 78. a stack of thylakoids 79. 80. involved in muscle contraction 81. -0-P-O Water is a dominant molecule of living things. Each of these terms is connected to aspects of water. Match the term to the description. I. a. attractive to water molecules. b. movement from a high concentration to low concentration. c. high concentration of solutes. d. creates an electrochemical gradient. e. low concentration of solutes. f. non-polar and unattractive to water. g. movement of water across a membrane. h. same concentration of solutes. 82. hypertonic. 83. isotonic. 84. osmosisWhat cell type is this? Explain why Fibroblasts Epithelial cells Lymphocytes Macrophages the photo is of stained mammalian cellsthat are under under a compound light microscope at 400x total magnification. the cells were treated with cell fixing agent, methylene blue stain, and eosin stain.
- 18) The contents of ..once released inside the cell can kill the cell. They can also be used to break down the bacteria or the food, which has been taken up by the cell, as well as degrade cell organelles (such as mitochondria), which are too old.Cytochalasin D inhibits the formation of microfilaments. Which of the following biological activities will be affected? Select all that apply. Formation of nuclear lamin network Formation of cleavage furrow in telophase U Cytosolic transport of secretory vesicles Movement of phagocytic cells%A£ li. True False نقطتان )2( Centrioles found in plant only ,that help divide the cell during cell * .division True False نقطتان )2( The function of Golgi Apparatus is * .synthesized of protein in the cell True False صفحة 2 من 2 إرسال عدم إرسال كلمات المرور عبر نماذج Go ogle مطلقا. öe lulje AI-Noor University College Jslsgaill lio a lai ai الاستخدام Google zilai II
- A cell is 5 µM in diameter. Express this in mm. mm9A. 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 type of bond helps to hoid the polypeptidn chains togather in an antibady? O disulfide Ob. lonic OE. tydrogen Od. polar covalent bond QUESTION 21 The process of a plasma cell first producing one type of antitiody and then changing to produced a different type is called Oa Clenal expansion ObB cell actiyation Oc Memary response Oa Phetiotype (class) switching QUESTION 22 Without there is no adaative immune response Oa macrophages OG Blymphocytes Ou plasma cells Ou.Tlymphocyles
- i. Why are carbon, nitrogen, oxygen, and hydrogen the most abundant elements in living matter and, therefore, considered macronutrients? ii. Explain the Fluid Mosaic membrane model of plasma membrane structure. iii. What is the difference between simple diffusion, facilitated diffusion, and active transport? :=IgA Proteases are enzymes that... destroy antibodies in mucus secretions cause blood to clot break down collagen break down polysaccharides that hold cells togetherWhich of the following modes of action would be most selectively toxic?a. interrupting ribosomal functionb. dissolving the cell membranec. preventing cell wall synthesisd. inhibiting DNA replication