Rough Endoplasmic Reticulum Structure and Function
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Rough Endoplasmic Reticulum Structure and Function

Learn about the characteristics and functions of the rough endoplasmic reticulum (RER), including the presence of membrane-bound ribosomes, cisternae structure, and its role in protein synthesis and sorting. Understand the importance of RER in cellular processes.

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Questions and Answers

What characterizes the rough endoplasmic reticulum (RER)?

Presence of membrane-bound ribosomes

Why are ribosomes not a stable part of the RER's structure?

They are constantly being bound and released from the membrane

What is the main function of the rough endoplasmic reticulum in cells?

Producing secreted proteins

What distinguishes the RER morphologically?

<p>Flattened-like membrane sheets called cisternae</p> Signup and view all the answers

Which process involves separating very fine insoluble solids from a liquid?

<p>Churning</p> Signup and view all the answers

In which process are grains separated from their stalks by beating them?

<p>Threshing</p> Signup and view all the answers

Which method is used to manually separate stones from grains of rice?

<p>Handpicking</p> Signup and view all the answers

What is the purpose of churning as described in the text?

<p>Separate very fine insoluble solids from a liquid</p> Signup and view all the answers

In the context of winnowing, what happens to the lighter solids (husks) when separated from the heavier solids (grains)?

<p>They are carried by wind and form a separate heap</p> Signup and view all the answers

How does handpicking help in distinguishing a stone from a grain of rice?

<p>By singling out stones that are noticeably distinct from rice grains</p> Signup and view all the answers

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