The endoplasmic reticulum is the cell organelle that forms the interconnected network of the tube-like structures. Its membrane continues with the outer nuclear membrane. The surface of the endoplasmic reticulum remains smooth and is called as smooth endoplasmic reticulum (SER). If the ribosomes are present on the surface of the endoplasmic reticulum, that will make the surface rough. That is called as rough endoplasmic reticulum (RER).

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Ch.23 How is Salmonella able to cross from the intestines into the blood? A. it is so small that it can squeeze between intestinal cells B. it secretes a toxin that induces its uptake into intestinal epithelial cells C. it secretes enzymes that create perforations in the intestine D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture — Which virus is associated with liver cancer? A. hepatitis A B. hepatitis B C. hepatitis C D. both hepatitis B and C — explain your answer thoroughly

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Chapter 4, Problem 11TYK

Summary Introduction

Introduction:

The endoplasmic reticulum is the cell organelle that forms the interconnected network of the tube-like structures. Its membrane continues with the outer nuclear membrane. The surface of the endoplasmic reticulum remains smooth and is called as smooth endoplasmic reticulum (SER). If the ribosomes are present on the surface of the endoplasmic reticulum, that will make the surface rough. That is called as rough endoplasmic reticulum (RER).

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