Table of Contents
- 1 What does the endoplasmic reticulum resemble?
- 2 What are endoplasmic reticulum like in real life?
- 3 What is the smooth ER missing?
- 4 Which organelle is like a garbage disposal?
- 5 Is endoplasmic reticulum always attached to nuclear membrane?
- 6 Is the endoplasmic reticulum a prokaryotic cell or eukaryotic?
What does the endoplasmic reticulum resemble?
The endoplasmic reticulum looks like a system with membranes that form cavities, flat cisterns and non-lamellar, round structures.
What are endoplasmic reticulum like in real life?
Thee proteins on the ribosomes collect in the Endoplasmic Reticulum to help transport the proteins throughout the cell. It is responsible for protein synthesis. A real life example of the Rough Endoplasmic Reticulum would be traffic on a highway.
Is endoplasmic reticulum similar to highway?
ENDOPLASMIC RETICULUM is a network of connected membrane tubes. Thus the rough E.R. and the Golgi apparatus and vesicles are part of the cell’s highway system because they are involved in moving proteins around the cell and to the outside of the cell. This cell’s highway system is called PROTEIN TRAFFICKING.
What do chloroplasts look like?
Chloroplasts are mostly oval-shaped blobs, but they can come in shapes like stars and ribbons too. They are protected by a smooth outer membrane which holds all of its material. These plastids also contain the pigment chlorophyll. This pigment is what gives plants their green color.
What is the smooth ER missing?
In contrast to the RER, smooth endoplasmic reticulum lacks ribosomes and is not involved in protein synthesis. Note that the lack of ribosomes means that the smooth ER is not basophilic and usually stains poorly by H&E.
Which organelle is like a garbage disposal?
lysosome
As most high schoolers learn, the lysosome carries out waste disposal and recycling. In a process known as autophagy (meaning “self-eating”), it takes in old cellular components and unneeded large molecules, such as proteins, nucleic acids and sugars, and digests them with the help of enzymes and acids.
What are some cell organelle analogies?
Cell Organelles | City Analogies |
---|---|
Cell Wall | City Wall |
Cytoplasm | Lawns |
Endoplasmic Reticulum | Highway or road system |
Ribosomes | Lumber or brick yard |
Can the endoplasmic reticulum be seen under a light microscope?
Rough Endoplasmic Reticulum . In the light microscope , the rough endoplasmic reticulum can be visualized as masses of material staining with basic dyes. The basophilia of the RER in H&E staining is due to the presence of negatively charged rRNA in the ribosomes attached to the cisternae.
Is endoplasmic reticulum always attached to nuclear membrane?
Yes, the endoplasmic reticulum is always attached to the nuclear membrane. ER is a part of the cytoplasmic vesicular system which also consists of nuclear envelope, lysosomes, endosomes and Golgi complex. ER is a continuous system, connected on one side to nuclear envelope and on the other side to the cell membrane.
Is the endoplasmic reticulum a prokaryotic cell or eukaryotic?
Endoplasmic reticulum- These are only found in eukaryotic cells . It is made up of sac like structures and held together by a cytoskeleton. Rough endoplasmic has a surface dotted with proteins and the smooth endoplasmic is made up of tubules which increases surface area.
Which ribosomes are attached to the ER?
Bound ribosomes are attached to the endoplasmic reticulum inside a cell. A bound ribosome is an organelle involved in the synthesis of cellular protein that is attached to the endoplasmic reticulum (ER) inside a cell. The endoplasmic reticulum is called the rough ER when there are ribosomes embedded within it.