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Water crosses plasma membranes through specialized channels called diffusion and concentrated gradient.
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What does the edoplasmic reticulum do in a cell?
it Forms channels through a network of folded membranes and Transports materials inside the cell
What causes the rapid change in the resting membranes potential that initiates an action potential?
In muscle cells the inward current is a sodium + calcium flow through acetycholine activated channels as well as through voltage sensitive calcium channels.
What are the events of chemiosmosis?
Chemiosmosis involves the pumping of protons through special channels in the membranes of mitochondria from the inner to the outer compartment. The pumping establishes a proton gradient
How does facilitated diffusion work?
It is a passive process utilizing a protein carrier or channel.
Why does water require channels to be transported across the membranes?
Water doesn't require channels to be transported across membranes because water is small enough to slip past the membrane; however, some cells do have channels, called aquaporins, which greatly increase the rate that water passes through the membrane.
What is facillitated diffusion?
Facilitated diffusion is, the movement of specific molecules across cell membranes through protein channels
What does the edoplasmic reticulum do in a cell?
it Forms channels through a network of folded membranes and Transports materials inside the cell
How do charged particles such as Na and K move across membranes?
Through channels in the bilipid layer. The channels use ATP to pump molecules against the ion gradient.
What causes the rapid change in the resting membranes potential that initiates an action potential?
In muscle cells the inward current is a sodium + calcium flow through acetycholine activated channels as well as through voltage sensitive calcium channels.
What are the events of chemiosmosis?
Chemiosmosis involves the pumping of protons through special channels in the membranes of mitochondria from the inner to the outer compartment. The pumping establishes a proton gradient
How does facilitated diffusion work?
It is a passive process utilizing a protein carrier or channel.
Why does water require channels to be transported across the membranes?
Water doesn't require channels to be transported across membranes because water is small enough to slip past the membrane; however, some cells do have channels, called aquaporins, which greatly increase the rate that water passes through the membrane.
What organelle transport things around the cell?
The endoplasmic reticulum moves substances through the cell within channels made of membranes. The cytoplasm also moves substances and organelles through cytoplasmic streaming
Synthesis of ATP via a proton gradient is called?
Chemiosmosis (involves the pumping of protons through special channels in the membranes of mitochondria from the inner to the outer compartment. The pumping establishes a proton gradient).
What is faciliated diffusion?
movement of specific molecules across cell membranes through protein channels
What cross through Asia?
what crosses in Asia is ansian
What is a series of large flattened membranes that are a pathway through cytoplasm?
is a series of large flattened membranes that are a pathway through the cytoplasm
