Smooth Endoplasmic Reticulum Quiz

Questions and Answers

What is the function of the smooth endoplasmic reticulum?

Make cellular products like hormones and lipids which form all the membranes of organisms.

Which cells are the smooth endoplasmic reticulum located in?

Eukaryotic plant and animal cells.

Where is the smooth endoplasmic reticulum located?

Attached to the rough endoplasmic reticulum, near the nucleus and the Golgi apparatus.

What does the smooth endoplasmic reticulum look like?

Ribosome-free, operating just like a factory. Signup and view all the answers

What are the differences between the rough ER and the smooth ER?

Rough ER contains ribosomes unlike the smooth ER, and its function also focuses on the assembly of proteins. Signup and view all the answers

Who discovered the smooth endoplasmic reticulum?

Keith R. Porter, Albert Claude, Brody Meskers, and Ernest F. Fullam. Signup and view all the answers

When was the smooth endoplasmic reticulum discovered?

<ol start="1945"> <li></li> </ol> Signup and view all the answers

List other functions of the smooth endoplasmic reticulum.

Produces glucose and transports materials through the inside of the cell. Signup and view all the answers

What does the smooth endoplasmic reticulum metabolize?

Natural and ingested toxins. Signup and view all the answers

What types of reactions do enzymes from the smooth endoplasmic reticulum catalyze?

Synthesis of cholesterol, lipids/phospholipids needed by the cell, and steroid hormones. Signup and view all the answers

Describe the structure of the smooth endoplasmic reticulum.

A system of membranes consisting of cisternae with no ribosomes on its surface. Signup and view all the answers

Study Notes

Function

Produces cellular products such as hormones and lipids, essential for forming cellular membranes.

Cell Types

Found in eukaryotic cells, specifically in both plant and animal cells.

Location

Located adjacent to the rough endoplasmic reticulum, close to the nucleus and Golgi apparatus.

Appearance

Appears as a ribosome-free network, functioning like a factory for lipid synthesis.

Differences from Rough ER

Lacks ribosomes, contrasting with rough ER, which is involved in protein assembly.

Discovery

Discovered by Keith R. Porter, Albert Claude, Brody Meskers, and Ernest F. Fullam in 1945.

Other Functions

In addition to lipid production, plays a role in glucose synthesis and material transport within the cell.

Metabolism

Metabolizes natural toxins and ingested substances to detoxify the cell.

Enzymatic Reactions

Enzymes in the smooth ER catalyze the synthesis of cholesterol, phospholipids, and steroid hormones.

Structure

Comprises a system of membranes called cisternae, characterized by the absence of ribosomes on its surface.

Description

Test your knowledge on the smooth endoplasmic reticulum with this quiz! Explore its functions, locations, and the types of cells that contain it. Perfect for students of biology looking to solidify their understanding of cellular structures.