How do different channels allow for ionic diffusion into and out of the cell. Discuss how...

How do different channels allow for ionic diffusion into and out of the cell.

Discuss how regulatory elements in proteins can lead to varied expression levels when binding to a small molecule or other protein.

Distinguish how small molecules bind to receptors in order to communicate over small and large distances.

Expert Solution

gladiator answered 2 years ago

How does rate of diffusion depend on ionic composition?

Q5. Aquaporins are water channels that allow rapid transport across cell membrane. You are interested in the...

Q5. Aquaporins are water channels that allow rapid transport across cell membrane. You are interested in the role that these channels play in cerebral edema (brain swelling) after traumatic brain injury (TBI). This channel is expressed on a type of cell in the brain called an astrocyte which is responsive to osmotic pressure and helps regulate fluid balance in the nervous system. A) Describe what happens to astrocytes when they are placed in i) hypertonic solution and ii) hypotonic solution. How...

Discuss the following different types of transmembrane transport: passive diffusion, facilitate diffusion, and active transport. Compare...

Discuss the following different types of transmembrane transport: passive diffusion, facilitate diffusion, and active transport. Compare and contrast their respective advantages and disadvantages and provide an example of each.

Explain how leak channels and gated channels differ. Discuss the role of calcium ions in the...

Explain how leak channels and gated channels differ. Discuss the role of calcium ions in the transmission of an action potential at the synapse. Define continuous propagation and saltatory propagation Identify and describe the three spinal meninges. Graded potentials produce an effect that increases with distance from the point of stimulation. produce an effect that spreads actively across the membrane surface without diminishing. always cause repolarization. may be either a hyperpolarization or a depolarization. are often all-or-none. please type it

1. Many different molecules need to pass in and out of a cell across the cell...

1. Many different molecules need to pass in and out of a cell across the cell membrane and from the outside of the body to the inside. Some of these molecules are hydrophobic and some are hydrophilic. Define these two terms and explain why they differ in their ability to pass through cell membranes. What part of a cell membrane makes it so tricky for some molecules to get through? How do these two types of molecules pass through cell...

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How do different channels allow for ionic diffusion into and out of the cell. Discuss how...

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How does rate of diffusion depend on ionic composition?

Q5. Aquaporins are water channels that allow rapid transport across cell membrane. You are interested in the...

Discuss the following different types of transmembrane transport: passive diffusion, facilitate diffusion, and active transport. Compare...

Explain how leak channels and gated channels differ. Discuss the role of calcium ions in the...

1. Many different molecules need to pass in and out of a cell across the cell...

How do marketing channels add value to an organization?

How is a cancerous cell different from a normal cell?

How is a cancerous cell different from a normal cell?

How is a cancerous cell different from a normal cell?

How is a cancerous cell different from a normal cell?