Contents
- 1 What is the function of the inner mitochondrial membrane?
- 2 What is the role of the inner mitochondrial membrane in ATP synthesis quizlet?
- 3 What is produced in the inner membrane of mitochondria?
- 4 What 3 things make up ATP?
- 5 How is the inner membrane of the mitochondrion unique?
- 6 What separates the inner and outer membranes of mitochondria?
- 7 Where is the ATP synthase located in the cell?
- 8 What kind of protein is found in the mitochondrial membrane?
What is the function of the inner mitochondrial membrane?
The inner mitochondrial membrane transduces energy through oxidative phosphorylation, the main process responsible for the production of energy in the form of ATP in eukaryotic cells (Saraste, 1999).
What is the role of the inner mitochondrial membrane in ATP synthesis quizlet?
inner mitochondrial membrane contains atp synthase complex for making ATP. c. protons move through atp synthase from the intermembrane space to the matrix and produce ATP.
What is the role of 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.
What major classes of proteins are found in the inner mitochondrial membrane?
The inner mitochondrial membrane contains proteins with four types of functions:
- Those that carry out the oxidation reactions of the respiratory chain.
- ATP synthase, which makes ATP in the matrix.
- Specific transport proteins that regulate the passage of metabolites into and out of the matrix.
- Protein import machinery.
What is produced in the inner membrane of mitochondria?
The mitochondrial inner membrane is the site of the electron transport chain, an important step in aerobic respiration. Between the inner membrane and outer membrane is the inter-membrane space. There, H+ ions build up to create a proton potential that helps power the ATP energy formation.
What 3 things make up ATP?
The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.
Which structure is responsible for the synthesis of ATP?
The mitochondrion is referred to as the ‘power house’ of the cell, because it is responsible for the synthesis of the majority of ATP under aerobic conditions. The inner membrane of the mitochondrion contains the components of the electron transport chain.
What is the inner membrane of the mitochondria called?
cristae
Each mitochondrion has two membranes: an inner membrane which is highly convoluted and folded into finger-like projections called cristae, and a smooth outer membrane that is a selective barrier to molecules from the cytoplasm.
How is the inner membrane of the mitochondrion unique?
The inner membrane is freely permeable to oxygen, carbon dioxide, and water only. It is much less permeable to ions and small molecules than the outer membrane, creating compartments by separating the matrix from the cytosolic environment. This compartmentalization is a necessary feature for metabolism.
What separates the inner and outer membranes of mitochondria?
Mitochondria posses their own DNA and ribosomes. 6. Just like the chloroplast, the stroma separates the inner and outer membranes of the mito- chondria. ATP synthase pumps, by active transport, hydrogen ions back into the mitochondria matrix.
How does the inner mitochondrial membrane produce energy?
How does mitochondrial respiration drive the synthesis of ATP?
It elegantly described how mitochondrial respiration creates an electrochemical gradient of protons across the mitochondrial inner membrane, which in turn drives ATP synthesis through the mitochondrial ATP synthase. However, the way in which the oxidative phosphorylation system is regulated in intact tissues still remains a matter of debate.
Where is the ATP synthase located in the cell?
ATP synthase is an enzyme embedded within the inner mitochondrial membrane (in animal cells) and in the thylakoid membrane (in plant cells). It is a hollow shape with a pathway in its center that enables protons to flow across the membrane into the mitochondrial matrix or thylakoid lumen.
What kind of protein is found in the mitochondrial membrane?
The inner mitochondrial membrane contains many copies of a protein called the F 0F 1ATPase. This is also called ATP synthase. It consists of two parts: the F 0 component spans the membrane and provides a channel for protons to move into the matrix from the intermembrane space.