The endoplasmic reticulum produces protein and are secreted from the cell by

Diffusion

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Osmosis

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Pinocytosis

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Exocytosis

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Passive transport

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Solution

The correct option is D Exocytosis
The rough endoplasmic reticulum (RER) is the site for protein synthesis with the help of the ribosomes. The Golgi apparatus links carbohydrates with proteins coming from ER to form glycoproteins by the process of glycosylation. The Golgi complex modifies, sorts and packages proteins and lipids coming from the ER. Packaging involves formation of secretory vesicles which pinch off from the ends of the cisternae and release their secretions by exocytosis.
Thus, the correct answer is option 'Exocytosis'.

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Similar questions

Q. Fill in the blanks in the table given below.

\begin{matrix} Cell organelle & Function Nucleolus & (i)____(ii)____ & Synthesis and transport of proteins and fat (iii)____ & Synthesis and secretion of enzymes and hormones Ribosomes & (iv)____(v)____ & Intracellular digestion \end{matrix}

Question 10
Find out the correct sentence.

(a) Enzymes packed in the Lysosomes are synthesized by the RER (rough endoplasmic reticulum).
(b) Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipids and proteins respectively.
(c) The endoplasmic reticulum is related to the destruction of plasma membrane.
(d) Nucleoid is present inside the nucleoplasm of the eukaryotic nucleus.

Q. After being formed by the ribosomes located on the endoplasmic reticulum, what is the next organelle to which a protein could be transported?

Question 12
The proteins and lipids, essential for building the cell membrane, are manufactured by

(a) Rough endoplasmic reticulum
(b) Golgi apparatus
(c) Plasma membrane
(d) Mitochondria

Question 21
Lipid molecules in the cell are synthesized by

(a) smooth endoplasmic reticulum
(b) rough endoplasmic reticulum
(c) golgi apparatus
(d) plastids

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