A protein destined for secretion from the cell is synthesized in the rough ER and then travels through several organelles. Which of the following represents the typical path of this protein through the endomembrane system?
Golgi apparatus → Rough ER → Vesicles → Plasma membrane
Rough ER → Golgi apparatus → Vesicles → Plasma membrane
Rough ER → Lysosomes → Vesicles → Plasma membrane
Rough ER → Vesicles → Golgi apparatus → Plasma membrane
Related Questions
The component of endomembrane system that may have ribosomes on its surface
a. Is specialized in the synthesis of lipids
b. Is site of protein synthesis
c. Helps in formation of plasma membrane during cytokinesis
d. Consists of cisternae, vesicle and tubules
Choose the correct one(s).
a. Is specialized in the synthesis of lipids
b. Is site of protein synthesis
c. Helps in formation of plasma membrane during cytokinesis
d. Consists of cisternae, vesicle and tubules
The two subunits of ribosome remain united at a critical ion level of
Copper
Manganese
Magnesium
Calcium
What is the advantage of forming a polysome structure during translation?
Increased protein synthesis efficiency
Decreased rate of translation
Enhanced mRNA stability
Reduced error rate during translation
Which of the following is not a function of vacuole in plant cell?
Storage
Waste disposal
Cell elongation and protection
Production of the hydrogen peroxide
Which statement regarding the formation of mitochondria and chloroplasts is true?
They are formed de novo from nuclear DNA.
They arise spontaneously from the cytoplasm.
They are formed by division of pre-existing organelles.
They are synthesized by the endoplasmic reticulum.
A mutation in a cell leads to the accumulation of misfolded proteins in the ER lumen. Which of the following cellular processes is MOST directly affected?
Autophagy
N-linked glycosylation
ER-associated degradation (ERAD)
Vesicular transport from ER to Golgi
Golgi apparatus is absent in
Higher plant
Yeast
Bacteria and blue- green algae
Liver cells
The cell organelle associated with intracellular digestion of macromolecules is
Lysosome
Ribosomes
Polysome
Dictyosome
Which organelles are responsible for digesting worn-out organelles and cellular debris?
Ribosomes
Mitochondria
Lysosomes
Vacuoles
Which cell organelle contains hydrolytic enzymes?
Nucleus
Mitochondria
Ribosome
Lysosome
