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What substance do the carrier proteins transport across the inner mitochondrial membrane?
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What has to be present for Pyruvate to enter the mitochondria?
The mitochondrial membrane has special transporter proteins which are needed to transport pyruvate. This transport also requires ATP.
What property of the cell membrane enables it to perform active transport?
Embedded in the semi-permeable cell membrane are many different types of carrier proteins or channel proteins. These globular proteins allow the transport of specific substances from the outside of the cell into the cell or vice versa.Specific means each protein can only transport one type of substance across. For example, Protein A can transport Substance X but not Substance Y. Substance Y has to be transported by Protein B which cannot transport Substance X. The specific nature of these globular proteins mean it is easier for these molecules to be transported.
What biomolecule helps transport molecules across the membrane?
proteins
What are the parts of the membrane help large molecules pass through it?
Globular proteins.
What is the difference between facilitated diffusion with the help of a carrier protein and active transport with the help of the transport protein?
Facilitated diffusion is a type of passive transport in which a substance moves across the cell membrane from high to low concentration. In this situation, the substance moves with the concentration gradient, and with the help of carrier molecules, it is able to make it's way across the membrane smoothly and without the expense of energy. Active transport, on the other hand, is the movement of a substance across the cell membrane from low to high concentration, making the transport a bit more difficult and calling for the use of energy. Transport proteins recognize the substance and allow it to cross through the membrane.
Where are the proteins of electron transport chains located?
where are the proteins of the electrons transport chain located
Where in the mitochondria is the proteins of the ETC located?
The Electron Transport Chain is located in the inner mitochondrial membrane and the thylakoid membrane in chloroplasts.
What has to be present for Pyruvate to enter the mitochondria?
The mitochondrial membrane has special transporter proteins which are needed to transport pyruvate. This transport also requires ATP.
Why must transport proteins be located in the mitochondrial membrane to complete the third stage of aerobic respiration?
They must interact with the electrons and hydrogen.
Where is the electron transport systems used to make ATP located?
The electron transport system used for ATP synthesis happens in the inner membrane of the mitochondrion and the proteins embedded within that membrane.
How do carriers proteins facilitate passive transport of molecules across a membrane?
Carrier proteins facilitate passive transport of molecules across a membrane by changing its shape, by using ATP, to allow a substance to pass through the membrane.
How do carrier proteins transport substance across the membrane?
The carrier protein changes shape , shielding the molecule from the interior of the membrane.
How is the inner membrane of the mitochondria adapted to its function?
The mitochondrial inner membrane forms internal compartments - within the organelle - known as cristae, which allow greater space for the proteins such as cytochromes to function correctly. Also, the electron transport chain is located on the inner membrane of the mitochondria and within the mitochondrions inner membrane are also transport proteins that transport in a highly controlled manner metabolites across this membrane.
What does electronic transport chain mean?
It is a group of proteins on the surface of the mitochondrial membrane which are sequentially oxidised and reduced thus transporting the electrons from one to the other
What property of the cell membrane enables it to perform active transport?
Embedded in the semi-permeable cell membrane are many different types of carrier proteins or channel proteins. These globular proteins allow the transport of specific substances from the outside of the cell into the cell or vice versa.Specific means each protein can only transport one type of substance across. For example, Protein A can transport Substance X but not Substance Y. Substance Y has to be transported by Protein B which cannot transport Substance X. The specific nature of these globular proteins mean it is easier for these molecules to be transported.
What biomolecule helps transport molecules across the membrane?
proteins
Where are the proteins for the electron transport chain located?
The electron transport chain is located in the cristae of a mitochondria. It is the enzymes used during the Krebs cycle that are found in the matrix of the mitochondria. In plants, the electron transport chain is located in the thylakoid membrane of a chlorophyll.
