What is the difference between the inner membrane of mitochondria and chloroplast?
The inner membrane in mitochondria is folded into cristae. The inner membrane in the chloroplast forms flattened sacs called thylakoids. Chloroplast has two chambers, thylakoid, and stroma. Mitochondria consume oxygen to provide energy to the cells.
Is the inner membrane The cristae?
A crista (/ˈkrɪstə/; plural cristae) is a fold in the inner membrane of a mitochondrion. The name is from the Latin for crest or plume, and it gives the inner membrane its characteristic wrinkled shape, providing a large amount of surface area for chemical reactions to occur on.
How do the inner membrane and the cristae relate?
The inner membrane forms invaginations, called cristae, that extend deeply into the matrix. The cristae define the third mitochondrial compartment, the crista lumen. The crista membranes contain most, if not all, of the fully assembled complexes of the electron transport chain and the ATP synthase (Fig. 2).
What is inner membrane?
The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage. More than 100 different proteins are associated with the inner membrane of E.
What is the difference between cristae and cisternae?
Cristae are found in mitochondria and are a fold in their inner membrane while cisternae are found in the Endoplasmic reticulum and Golgi apparatus in the form of flattened membrane discs.
What are two similarities and two differences between mitochondria and chloroplasts?
Differences Between Mitochondria and Chloroplasts
| Chloroplast | Mitochondria |
|---|---|
| Converts solar/light energy into chemical energy (sugar). | Converts chemical energy (sugar) into another form of chemical energy (ATP), which is simpler and could be used by the cell. |
What is inner membrane of chloroplast?
The innermost matrix of chloroplasts, called the stroma, contains metabolic enzymes and multiple copies of the chloroplast genome. Chloroplasts also have a third internal membrane called the thylakoid membrane, which is extensively folded and appears as stacks of flattened disks in electron micrographs.
Do chloroplasts have cristae?
This membrane is of central importance in chloroplasts, where it fills the role of the inner mitochondrial membrane in electron transport and the chemiosmotic generation of ATP (Figure 10.14). The inner membrane of the chloroplast envelope (which is not folded into cristae) does not function in photosynthesis.
What is the function of inner membrane in chloroplast?
The inner membrane of the chloroplast forms a border to the stroma. It regulates the passage of materials in and out of the chloroplast. In addition to regulation activity, fatty acids, lipids, and carotenoids are synthesized in the inner chloroplast membrane.