LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This portion of an organelle has no ribosomes. It forms transport vesicles that are used to move things around inside the cell.
A
Smooth Endoplasmic Reticulum
B
Rough Endoplasmic Reticulum
C
Golgi Apparatus
D
Centriole
Explanation: 

Detailed explanation-1: -Pieces of the Golgi membrane pinch off to form vesicles that transport molecules around the cell. The Golgi apparatus can be thought of as similar to a post office; it packages and labels “items” and then sends them to different parts of the cell. Both plant and animal cells have a Golgi apparatus.

Detailed explanation-2: -Correctly folded and assembled proteins in the ER are packaged into COPII-coated transport vesicles that pinch off from the ER membrane. Shortly thereafter the coat is shed and the vesicles fuse with one another to form vesicular tubular clusters, which move on microtubule tracks to the Golgi apparatus.

Detailed explanation-3: -Transport from the Golgi apparatus. Proteins are sorted in the trans Golgi network and transported in vesicles to their final destinations. In the absence of specific targeting signals, proteins are carried to the plasma membrane by constitutive secretion.

There is 1 question to complete.