Glycosylation occurs: a)in the cytosol b)in the ER with the help of tranferases
ID: 279083 • Letter: G
Question
Glycosylation occurs:
a)in the cytosol
b)in the ER with the help of tranferases
c)on the ribosome
D)in the ER
Which of the following statements most correctly distinguishes endocytosis from exocytosis?
a)only exocytosis uses vesicles
b)lysosomes are never involved in exocytosis
c)the direction of transport between these two are different
d)endocytosis does not involve plasma membrane receptors
Cells which engulf items (such as macrophages) are undergoing(Not: Im not sure if it is endocytosis or phagocytosis)
endocytosis
phagocytosis
pinocytosis
exocytosis
These proteins are essential in helping the vescile fuse to the membrane
Rad and tethers
adaptin and Rab
SNARES (v and t SNARES)
Rab and tethers
a)in the cytosol
b)in the ER with the help of tranferases
c)on the ribosome
D)in the ER
Which of the following statements most correctly distinguishes endocytosis from exocytosis?
a)only exocytosis uses vesicles
b)lysosomes are never involved in exocytosis
c)the direction of transport between these two are different
d)endocytosis does not involve plasma membrane receptors
Cells which engulf items (such as macrophages) are undergoing(Not: Im not sure if it is endocytosis or phagocytosis)
endocytosis
phagocytosis
pinocytosis
exocytosis
These proteins are essential in helping the vescile fuse to the membrane
Rad and tethers
adaptin and Rab
SNARES (v and t SNARES)
Rab and tethers
Explanation / Answer
1.Glycosylation-the process by which sugars are chemically attached to proteins to form glycoproteins.
Some glycosylation reactions occur in the lumen of the ER; others, in the lumina of the cis-, medial-, or trans-Golgi cisternae.
2.b) The lysosomes also act as the waste disposal system of the cell by digesting unwanted materials in the cytoplasm, both from outside the cell and obsolete components inside the cell. Material from outside the cell is taken-up through endocytosis, while material from the inside of the cell is digested through autophagy.
thus lysozomes are involved in endocytosis and autophagy , but not exocytosis.
3. Both endocytosis and phagocytosis
Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane.
There are two main kinds of endocytosis:
4.The primary role of SNARE proteins is to mediate vesicle fusion, that is, the fusion of vesicles with their target membrane bound compartments (such as a lysosome).
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