What is the folded inner membrane called?

What is the folded inner membrane called?

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.

What is the inner mitochondrial membrane called?

Mitochondria are bounded by a double-membrane system, consisting of inner and outer membranes. Folds of the inner membrane (cristae) extend into the matrix.

What organelle has a folded inner membrane?

Complete answer: The inner membrane of the mitochondria is the site of the electron transport chain (aerobic respiration). The inner mitochondrial membrane has folds called cristae, helping in increasing the surface area.

What is the space between the cristae called?

The inner membrane contains folds, called cristae, which increase its surface area. The space between the two membranes is called the intermembrane space, and the space inside the inner membrane is called the mitochondrial matrix.

Why is mitochondria inner membrane folded?

The inner membrane of Mitochondria is deeply folded to create a large surface area for chemical reactions of oxidative phosphorylation, i.e. the process of converting food sugars into energy (ATP) to take place.

What is the space between the inner and outer membrane called?

The IMS can be subdivided into two distinct subcompartments, the intracristae space and the lumen between the outer and the inner membrane, which is also called the “external IMS”.

What is cristae and Matrix?

Each membrane is a phospholipid bilayer embedded with proteins. The inner layer has folds called cristae, which increase the surface area of the inner membrane. The area surrounded by the folds is called the mitochondrial matrix. The cristae and the matrix have different roles in cellular respiration.

What does Cristae do in mitochondria?

Mitochondria adapt their shape to sustain necessary cellular functions. Cristae are functional dynamic compartments whose shape and dimensions modulate the kinetics of chemical reactions and the structure of protein complexes. Cristae shape is maintained by the cooperation of mitochondrial-shaping proteins.

What is the inner membrane of mitochondria made of?

The mitochondrial inner membrane is made primarily of a phospholipid bilayer, just like the cell membrane. Embedded in this bilayer are various proteins that serve to carry out the electron transport chain. The membrane has folds called christae that increase its surface area.

What are the invaginations of the inner membrane called?

The numerous invaginations of the membrane are called cristae, separated by crista junctions from the inner boundary membrane juxtaposed to the outer membrane. Cristae significantly increases the total membrane surface area compared to a smooth inner membrane and thereby the available working space. The inner membrane creates two compartments.

What are the folds of the mitochondrial membrane called?

The inner mitochondrial membrane has folds called cristae which helps in increasing the surface area. The enzyme ATP synthase is embedded in the inner mitochondrial membrane helps in the synthesis of ATP molecule (energy currency of the cell). It is also the site of the electron transport chain (aerobic respiration).

Can a membrane be folded inside a barrier membrane?

The paradigm of an energy-transducing membrane folded inside a barrier membrane is universal although the number, size, and shape of both the organelles and their folds ( cristae) vary greatly. The greater the energy requirements of a cell, the more inner membrane surface area it contains.

What is the advantage of highly folded membranes in a cell?

An organelle with such highly folded membranes can be endoplasmic reticulum. The many folds result in more surface area for ribosomes to attach and thus allowing protein synthesis to occur at a more efficient rate.

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