AP BIOLOGY

CELL RESPIRATION

STRUCTURE OF THE MITOCHONDRION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the cristae?
A
proteins responsible for the import of mitochondrial matrix proteins
B
energy transducers
C
many deep folds that are characteristics of the inner mitochondrial membrane
Explanation: 

Detailed explanation-1: -To increase the capacity of the mitochondrion to synthesize ATP, the inner membrane is folded to form cristae. These folds allow a much greater amount of electron transport chain enzymes and ATP synthase to be packed into the mitochondrion.

Detailed explanation-2: -The structure of the inner mitochondrial membrane is extensively folded and compartmentalized. The numerous invaginations of the membrane are called cristae, separated by crista junctions from the inner boundary membrane juxtaposed to the outer membrane.

Detailed explanation-3: -Mitochondrial cristae are folds of the mitochondrial inner membrane that provide an increase in the surface area. Electron transport chain: The electron transport chain helps to produce ATP.

Detailed explanation-4: -The Ist type, with lamellar (flat) cristae includes four morphological forms: ribbon, sheet, bundle-like and rounded ones (discoidal and plate-like). The 2nd type, with vesicular cristae, includes bubble, ampule, and sac-like ones. The 3rd type with tubular cristae.

Detailed explanation-5: -It is also the site of the electron transport chain (aerobic respiration). So, the correct answer is ‘Cristae’.

There is 1 question to complete.