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Explain how CO2 can cross a cells plasma membrane

Normally we think of CO2 as a gas because it is (at least when its in the atmosphere it is). However, it is a very different story inside of cells. CO2 is produced as a result of respiration inside mitochond...
EB
Answered by Eoin B. • Biology tutor
4475 Views

Explain the formation of an action potential.

The change from resting potential to action potential is caused by the stimulation of a recpetor , this causes a chain reaction which eventually leads to a positive environement inside the cell. An change in...
MT
Answered by Molly T. • Biology tutor
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Explain how anti-diuretic hormone (ADH) is released and acts on cells in the collecting duct wall?

Osmoreceptors in the hypothalamus detect a change in the water potential of blood, this stimulates neurosecretory cells to make and release ADH. ADH travels down the axon to the terminal bulb in the posterio...
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Answered by Claire B. • Biology tutor
5469 Views

What is the chemical equation for aerobic respiration

6O 2 + C 6 H 12 O 6 ---> 6CO 2 + 6 H 2 O In words this is: Oxygen + Glucose ---> Carbon dioxide + Water Remember that in order to balanc the equation, everything has a 6 in front of it, APART from gluc...
MS
Answered by Mathew S. • Biology tutor
19642 Views

Explain how action potentials are transmitted across synapses.

The action potential runs along the presynaptic membrane in a wave of depolarisation and activates the Voltage Gated Calcium ion channels. 2) Once these channels open, Ca2+ diffuses into the presynaptic neur...
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Answered by Liam O. • Biology tutor
4122 Views