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How does an action potential work?

Resting potential at - 75mV

Stimulus causes opening of sodium channels and influx of sodium ions, membrane becomes less polarized

Threshold potential reached at -55mV, opening of many more s...

CH
Answered by Catherine H. Biology tutor
2747 Views

How do you form the imperfect tense in French?

  1. Take a regular verb, e.g. jouer-to play.

  2. Conjugate it in the 1st person plural, I.e. nous. E.g. jouer= jouons

  3. Take off the -ons, to leave the stem. E.g. jou

    WW
    Answered by William W. French tutor
    1969 Views

What is the electron acceptor used in photosynthesis

NADP

BS
Answered by Bianca S. Biology tutor
2700 Views

How does fractional distillation work?

Different length hydrocarbon chains are separated by their different boiling points as longer chains will have stronger intermolecular attractions. The crude oil is heated and injected into the base of th...

BS
Answered by Bianca S. Chemistry tutor
4648 Views

How is a polar bear adapted for it's environment? (4 marks)

Polar bears are well adapted for survival in the Arctic: 

White fur to camouflage themselves from prey on the snow and ice. 

Thick layers of fat and fur for insulation against the cold.

...
RM
Answered by Ruwani M. Biology tutor
9235 Views

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