You might expect that pancreatic cells would contain large amounts of
rough endoplasmic reticulum.
Which organelle will produce steroid hormones in the testes and adrenal cortex while detoxifying alcohol in the liver?
1. smooth endoplasmic reticulum
2. rough endoplasmic reticulum
3. ribosomes
4. Golgi apparatus
1. smooth endoplasmic reticulum
True or False?
A cell that is actively involved in synthesizing proteins for export from the cell contains large amounts of rough endoplasmic reticulum.
True
True or False?
The ER is involved in the synthesis of carbohydrates
False
carbohydrates are not in the synthesis of the ER
True or False?
Proteins manufactured in the rough ER are secreted into the cytoplasm.
False
Proteins are present in both the ________ and _________ ER.
Smooth and rough
The folds of the ER are
1. cristae.
2. grana.
3. cisternae.
4. stroma.
3. cisternae
The endoplasmic reticulum, (ER), or “inner plasma network”, is a series of interconnected membranous channels in the cell’s
cytoplasm
After a polypeptide chain is formed on a ribosome, it moves into the lumen (inner space) of the
ER.
The rough endoplasmic reticulum is connected to ribosomes. The rough
ER is responsible for processing and altering
proteins:
·
The proteins are _________ from primary to tertiary structure.
·
Portions of carbohydrate can be added to the _________.
· The
proteins can be incorporated into the __ itself
1. Converted
2. Proteins
3. ER