Concept explainers
A.
To explain: What supplies the free energy needed to ensure unidirectional movement along the microtubule.
Introduction: The microtubules are hollow and cylindrical in structure. They are approximately 25 nm in diameter, present in all eukaryotic cells and play crucial roles in the determination of cell shape and also in cellular motility. It is composed of with αβ-tubulin having two subunits such as α-tubulin and β-tubulin. The β-tubulin subunits are exposed at the plus ends and α-tubulin subunits are exposed at the minus ends. Kinesis and dyneins are two motor proteins that are moves along with the microtubules.
B.
To calculate: The average rate of movement of kinesin along the microtubule.
Introduction: The microtubules are hollow and cylindrical in structure. They are approximately 25 nm in diameter, present in all eukaryotic cells and play crucial roles in the determination of cell shape and also in cellular motility. It is composed of with αβ-tubulin having two subunits such as α-tubulin and β-tubulin. The β-tubulin subunits are exposed at the plus ends and α-tubulin subunits are exposed at the minus ends. Kinesis and dyneins are two motor proteins that are moves along with the microtubules.
C.
To calculate: The length of each step that a kinesin takes as it moves along a microtubule.
Introduction: The microtubules are hollow and cylindrical in structure. They are approximately 25 nm in diameter, present in all eukaryotic cells and play crucial roles in the determination of cell shape and also in cellular motility. It is composed of with αβ-tubulin having two subunits such as α-tubulin and β-tubulin. The β-tubulin subunits are exposed at the plus ends and α-tubulin subunits are exposed at the minus ends. Kinesis and dyneins are two motor proteins that are moves along with the microtubules.
D.
To explain: How a kinesin molecule moves along a microtubule.
Introduction: The microtubules are hollow and cylindrical in structure. They are approximately 25 nm in diameter, present in all eukaryotic cells and play crucial roles in the determination of cell shape and also in cellular motility. It is composed of with αβ-tubulin having two subunits such as α-tubulin and β-tubulin. The β-tubulin subunits are exposed at the plus ends and α-tubulin subunits are exposed at the minus ends. Kinesis and dyneins are two motor proteins that are moves along with the microtubules.
E.
To calculate: The number of ATP molecules that can be hydrolyzed from given data.
Introduction: The microtubules are hollow and cylindrical in structure. They are approximately 25 nm in diameter, present in all eukaryotic cells and play crucial roles in the determination of cell shape and also in cellular motility. It is composed of with αβ-tubulin having two subunits such as α-tubulin and β-tubulin. The β-tubulin subunits are exposed at the plus ends and α-tubulin subunits are exposed at the minus ends. Kinesis and dyneins are two motor proteins that are moves along with the microtubules.
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