DQuestion 13 2 pts A transport vesicle containing proteins from the rough endopl
ID: 188482 • Letter: D
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DQuestion 13 2 pts A transport vesicle containing proteins from the rough endoplasmic reticulum will travel to the: O cell membrane O cis face of the Golg apparatus smooth endoplasmic reticulum nucleus O trans face of the Goigi apparatus D Question 14 2 pts Cells can change their shape by rapidly Oneurofiaments O intermediate laments Ovimentin fibers O actin filaments guanosine triphosphate D Question 15 2 pts What happens during a hydrolysis reaction? Water breaks ionic bonds O Saturated fats become unsaturated Protein cols ito its secondary stuctn O A bond is formed between two repeat units of O A bond is broken between two repeat units of a molecule. a moleculeExplanation / Answer
Ans. #13. Correct option- A. Cell membrane.
The protein-loaded vesicle transfers from ER to cis-Golgi ---> media Golgi ---> trans Golgi. From trans Golgi, the vesicle moves to the target organelles or cellular compartment.
Among the available options, the protein-loaded vesicle can move to cell membrane as well as nucleus. Since there is no information provided to discriminate the target organelle, both the options can be treated valid.
# However, the vesicle containing proteins FIRST travels to cis face of Golgi. Therefore, from this perspective, it is the most suitable option.
# 14. Correct option- D. Actin filaments. Actin filaments (microfilaments) help regulate cell shape. Because of exhibiting dynamic ability to undergo polymerization and depolarization, they can facilitate rapid change in cell shape.
Neurofilaments and vimentin fibers are intermediate filaments. Intermediate filaments also coordinate with microtubules to maintain cell shape. However, owing to their rigidity and lesser flexibility, they are not principally suitable to facilitate the dynamics of rapid change in cell shape.
Guanosine triphosphate does not mediate change in cell shape.
#15. Correct option. E. A bond is broken between two repeat units of a molecule. Hydrolysis is the cleavage of a covalent bond where a water molecule is added across the bond being cleaved. Most frequently, hydrolysis of a polymer into its monomers of smaller fragments (say, hydrolysis of proteins into amino acids, hydrolysis of starch into glucose, etc.) involves the addition of a water molecule across the covalent bond undergoing cleavage.
# The term hydrolysis is limited to “hydrolysis” of covalent bond but not to ionic bond. The ions are “solvated/ hydrated” when an ionic compound is placed in water.
# Unsaturation of a fat is not hydrolysis. See definition of hydrolysis above.
# Protein coiling and bond formation are not hydrolysis.
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