CELL BIOLOGY QUIZ 2

Which of the following is part of the mitochondria

• outer membrane

• DNA

• matrix

• all of the above

Increase the surface area available for ATP synthesis

• cristae

• matrix

• inner membrane

• outer membrane

Letter F is which structure of the mitochondria?

• inner membrane

• outer membrane

• cristae

• matrix

​​Fluorescently labeled proteins and lipids are capable of diffusing from one type of ER into the other.

• true

• false

Approximately .................. of the proteins encoded by a mammalian genome are synthesized on ribosomes attached to the RER membranes and released into the ER lumen.

• 1/2

• 1/3

• 1/4

Pick the proteins synthesized on ribosomes attached to the RER membranes and released into the ER lumen.

• secreted proteins, ​ ​cytoskeleton proteins

• peripheral proteins of the cytosolic surface of membranes

• secreted proteins, ​ integral membrane protein

• transcription proteins

SER is an important protein processing plant, it is packed with molecules that recognize unfolded or misfolded proteins.

• true

• false

Almost all proteins produced on RER ribosomes are converted to glycoproteins. What is the function of the added carbohydrate groups?

• directs the complex folding of the protein

• an energy source for their interactions with other macromolecules

• binding sites in their interactions with other macromolecules

• enriching protein diversity

Which side of the Golgi network is marked in yellow?

• trans

• cis

• ERGIC

• VTC

Golgi complex is also the synthesis site of most of the cell´s complex polysaccharides.

• true

• false