Which statement BEST describes the relationship between the nuclear envelope and the endoplasmic reticulum?
The nuclear envelope is entirely separate from the endoplasmic reticulum.
The inner membrane of the nuclear envelope is continuous with the smooth ER membrane.
The outer membrane of the nuclear envelope is continuous with the rough ER membrane.
The nuclear envelope is formed by invaginations of the Golgi apparatus.
Related Questions
Which of the following is NOT a function associated with the smooth endoplasmic reticulum (SER)?
Lipid synthesis
Detoxification of drugs and poisons
Calcium ion storage
Glycosylation of proteins
A researcher observes a eukaryotic cell lacking functional peroxisomes. Which of the following metabolic processes would be MOST directly affected?
Glycolysis
Breakdown of long-chain fatty acids
Synthesis of proteins
Replication of DNA
9 + 2 array of microtubules is found in the core of
Cilia
Flagella
Fimbriae
1 and 2
A mutation affects a eukaryotic cell's ability to add mannose-6-phosphate tags to proteins. Which organelle's function would be MOST directly compromised?
Nucleus
Peroxisome
Lysosome
Mitochondrion
Which statement BEST describes the relationship between the nuclear envelope and the endoplasmic reticulum?
The nuclear envelope is entirely separate from the endoplasmic reticulum.
The inner membrane of the nuclear envelope is continuous with the smooth ER membrane.
The outer membrane of the nuclear envelope is continuous with the rough ER membrane.
The nuclear envelope is formed by invaginations of the Golgi apparatus.
A novel unicellular eukaryote is discovered with an unusual Golgi apparatus. Instead of the typical cis-trans polarity, its Golgi cisternae appear randomly distributed throughout the cytoplasm. Which cellular process would be MOST severely impacted by this disorganized Golgi?
Ribosome biogenesis
Transcription of mRNA
Targeted protein delivery to lysosomes and the plasma membrane
ATP synthesis via oxidative phosphorylation
Certain eukaryotic cells possess extensive networks of both smooth and rough ER. Which of the following cell types would likely have the HIGHEST combined surface area of ER?
Red blood cells
Skin epithelial cells
Steroid-producing cells
Muscle cells
