Cellular biology – endoplasmic reticulum

Question 1

Endoplasmic reticulum

Answer 1

A membrane factory that specializes in the synthesis and transport of protein and lipid components of most of the cells organelles

Question 2

Endoplasmic reticulum structure

Answer 2

Consists of a network of tubular or saclike channels (cisternae) that extend throughout the cytoplasm and a continuous with the outer nuclear membrane

Question 3

Folded membranes the form the cisternae The endoplasmic reticulum…

Answer 3

Maybe rough or smooth granular or agranular

Question 4

Rough endoplasmic reticulum is rough because…

Answer 4

Ribosomes and ribonucleic protein particles are attached to it

Question 5

Some of the proteins synthesized by ribosomes remain in the endoplasmic reticulum others…

Answer 5

Are used to construct membranes Of the cell and of other organelles like the golgi complex, lysosomes, peroxisome’s and the nucleus

Question 6

The Endoplasmic reticulum Responsible for much of the cells…

Answer 6

Protein synthesis and folding, and a new role is sensing cellular stress

Question 7

Smooth endoplasmic reticulum Do not contain…

Answer 7

Ribosomes or Ribonucleoprotein particles

Question 8

Membranous surfaces of the smooth endoplasmic reticulum contain…

Answer 8

Enzymes involved in the synthesis of steroid hormones and are responsible for a variety of reactions required to remove toxic substances from the cell

Question 9

The endoplasmic reticulum communicates with…

Answer 9

The golgi complex And interacts with other organelles, particularly lysosomes and peroxisomes