Has an inner membrane with Infoldings called cristae that increase the surface area of the inner membrane?
mitochondrial inner membrane
The mitochondrial inner membrane consists of a number of infoldings called cristae.
What are cristae in biology?
A crista (/ˈkrɪstə/; plural cristae) is a fold in the inner membrane of a mitochondrion. This aids aerobic cellular respiration, because the mitochondrion requires oxygen. Cristae are studded with proteins, including ATP synthase and a variety of cytochromes.
What cell organelle has cristae?
structure of mitochondria elaborately folded into structures called cristae that dramatically increase the surface area of the membrane. In contrast, the inner membrane of chloroplasts is relatively smooth.
What are the Infoldings of a mitochondrion’s inner membrane called?
The inner membrane is usually highly convoluted, forming a series of infoldings, known as cristae, that project into the matrix.
What is the difference between cristae and Cisternae?
The key difference between Cristae and Cisternae is that the Cristae are the foldings of the inner mitochondrial membrane while the Cisternae are the flattened structures that make the Golgi apparatus.
What is the function of the Infoldings in mitochondria termed cristae?
The infoldings or inward projections of the inner membrane of the mitochondrion, which are studded with proteins and increase the surface area for chemical reactions to occur like cellular respiration. Crests or ridges projecting from a surface, as in cristae cutis (dermal ridges on palms and soles).
What is the purpose of the folds in mitochondria?
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 function of the outer membrane?
The outer membrane protects Gram-negative bacteria against a harsh environment. At the same time, the embedded proteins fulfil a number of tasks that are crucial to the bacterial cell, such as solute and protein translocation, as well as signal transduction.
What are tubular cristae?
Tubular cristae (arrowheads) are present in many cell types, being a common form in steroid-producing cells. Close packing of tubular cristae is a rare form of the cristae, but is present in some steroid-producing cells. This cristae morphology is referred to as ‘tubular association’ (TA) in this study.
What is Peri mitochondrial space?
Explanation: The mitochondrial intermembrane space is the space between the outer membrane and the inner membrane. It is also known as perimitochondrial space. One protein that is localized to the intermembrane space in this way is cytochrome c.
What do you call the space in the inner membrane?
The inner membrane creates two compartments. The region between the inner and outer membrane, called the intermembrane space, is largely continuous with the cytosol, while the more sequestered space inside the inner membrane is called the matrix.
What are cristae in anatomy?
In anatomy and zoology, the cristae definition is a ridge or crest. The folds in the inner mitochondrial membrane look like ridges that surround the mitochondrial matrix (the innermost space of mitochondria).
What is the difference between mitochondrial cristae and Crista?
Mitochondrial cristae are folds in the inner mitochondrial membrane, and crista is the singular form of cristae. Mitochondria are eukaryotic organelles known for their work in energy production.
What are the 3 types of cristae?
The infoldings, called cristae, have three morphologies: (1) flattened or sheetlike, (2) fingerlike or tubular, and (3) paddlelike. The mitochondria of land plants and animals, by comparison, generally have flattened cristae.
What is the function of cristae in oxidative phosphorylation?
Recall that oxidative phosphorylation occurs along the mitochondrial membrane, and cristae are the folds within the same membrane. The addition of folds increases the surface area, allowing for more of the membrane to fit within the confines of the mitochondria.