Which of these explanations of protcin stcture is NOT coec quatemary stractuare
ID: 192143 • Letter: W
Question
Which of these explanations of protcin stcture is NOT coec quatemary stractuare allows two polypeptides so interact to fom an active proci the polarity of amino acids in the peptide secondary structhare -uses imeractions of the pepside back.hone to begin flding of e Twe of these are not comect polbpeptide Which of the following statements concening UNSATURATED fats is coneut? They are more consmon in animals than in plants They have double bonds in the carhon chains of their fatty acids They are gencrally solid at room temperature 13. contain more hydrogen than do saturated fats having the same numbet of carbon atoms Two answers are correct 14. Identify the nature of this amino acid: polar @nonpolar Kacidic basic 15. The antibiotic erythromycin is thought to combine with the ribos mes in bacteria and thus dirupt their normal functioning. In other words, this antibiotic destroys bacteria by interfering with normal cell reproduction preventing the synthesis of proteins slowing energy production within the cell preventing transport within the endoplasmie reticulum interfering with materials entering and leaving the cell 16. Which one of the following is NOT correctly matched? A. chloroplastusing carbon dioxide to make glucose mitochondria .. acrobic respiration E. Golgi complex …… modifying membrane proteins C. ysosomesstorage of nutrients 17. The control center of the eukaryotic cell is the 18. Which of these is NOT one of the three domains to which all organisms belong? 19. Which of the following organelles is not generally found in animal cells? nucleus g nucleolus nucleoid Ar mitochondria Bacteria Archaea Prokaryotes centriole endoplasmic reticulum food vacuole central vacuole are found in both procaryotic and eucaryotic cells EXCEPT 20. All of the following K plasma membrane cell wall peroxisomes chromosome 21. Transporting protein in the cell involves the synthesizing of proteins in the cytoplasm,GolgiComples ibosomes and using the to package the proteins into vesicles to be relcased by exocytosis smooth ER, Golgi Complex rough FR: smooth ER D rough ER, Golgi Complex none of these are correcExplanation / Answer
12. b. quaternary structure formed by two or more polypeptides with multisubunit complex.
13. b. Saturated fats are solid at room temperature found in animals , while unsaturated fats are liquid at room temperature which are from plants. The saturated and unsaturated fats differ mainly having no double bonds and double bonds between molecules. Saturated fats have no gaps because saturated with hydrogen molecules. Unsaturated fats have double bonds, which break up the chain of hydrogen molecules and create gaps, allowing the fats to liquefy at room temperature.
14.b. It is a Tyrosine. Essential, aromatic, non polar
15 a. By binding to the 50s subunit of the bacterial rRNA complex and, protein synthesis was inhibited
16.d. cell organelle where digestion of cell nutrients takes place
17.a. Nucleus is consider as brain of a cell.
18. d. prokaryotes
19. d. central vacuole is mainly present in mature plant cells.
20. c. peroxisome founds only in eukaryotes
21.d. Rough ER- for protein synthesis, Golgi complex- for formation of secretory vesicle and exocytosis.
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