NEETBotanyCell - The Unit of Life
Read the following statements regarding the membranous structures of eukaryotic organelles and select the correct one.
Options
- AThe membrane of the thylakoids encloses a space called a lumen.
- BThe outer membrane of mitochondria forms a number of infoldings called cristae to increase the surface area.
- CThe trans face of the Golgi cisternae is convex and acts as the forming face.
- DThe stroma lamellae are arranged in stacks like piles of coins to form grana.
Correct answer
A. The membrane of the thylakoids encloses a space called a lumen.
Step-by-step solution
The membrane of the thylakoids encloses a space called a lumen. This statement is correct. The inner membrane (not the outer membrane) of mitochondria forms a number of infoldings called cristae to increase the surface area. The cis face of the Golgi cisternae is convex and acts as the forming face, whereas the trans face is concave and acts as the maturing face. Thylakoids are arranged in stacks like piles of coins to form grana. Stroma lamellae are flat membranous tubules that connect the thylakoids of different