Because it is bound to GDP

Because it is bound to PLC-beta 1

Because it is bound to GTP

Because it is bound to Ca⁺⁺

Because it is bound to cyclic AMP

Is an integral transmembrane protein with 7 trans-membrane segments

Is a membrane-associated protein with 7 trans-membrane segments

Is an ionotropic receptor protein

Is also used in cell-to-cell recognition processes

Is part of the MHC that is used to prevent auto-immune destruction

Called microfilaments, intermediate filaments and microtubules, that systematically degrade waste products for secretion

Called rough, smooth and intermediate networks, that systematically modify products and prepare them for secretion

Called microfilaments, intermediate filaments and microtubules, that systematically transport substances down the length of the cell

Called cis, medial and trans networks, that systematically produce ATP for cell energy.

Called cis, medial and trans networks, that systematically modify products and prepare them for secretion

it is semi-permeable

it contains polar groups that can be hydrophobic

it contains a phospholipid bilayer

it contains proteins that act as pumps to move substances up their concentration gradient

it contains proteins that act as channels for specific ions

band-pass filters from 300-3000 Hz

low-pass filters < 300 Hz

no filters at all

band-pass filters from 3000-30000 Hz

high-pass filters >3000 Hz

the same for all fibres in a nerve trunk, such as the sciatic nerve.

directly proportional to the length of the fibre.

highest for fibres signalling pain.

inversely proportional to the diameter of the fibre.

slower for unmyelinated than for myelinated fibres of the same diameter.

All be of an even size

Can be grouped according to size as belonging to different neurons

Every one will be of a different size

Will vary in size randomly as a function of ambient conditions

Will vary in size as you vary the stimulus conditions