Edexcel Biology Topic 8 quiz 4.0 / 5 based on 6 ratings ? BiologyA2/A-levelEdexcel Created by: Ryan MartinCreated on: 08-04-13 16:06 Which nervous system gets the body ready for "fight or flight"? Sympathetic 1 of 12 Which neurones has its nucleus situated central to the axon body? Relay 2 of 12 In the reflex arc,the sensory neurone travels back to the effector via which route? Ventral route 3 of 12 Pupil's become dilated by contraction in which muscle group? Radial 4 of 12 In order to depolarise the membrane which substance has to enter the intracellular space in abundance? Na+ 5 of 12 What mV does the membrane reach during hyperpolarisation? -90 6 of 12 What is the name of the period to restore restoring potential? Refactory period 7 of 12 Where des depolarisation occur? Nodes of ranvier 8 of 12 What form of summation is of several impulses to one destination? Spatial summation 9 of 12 What do auxins cause in plants? Cell elongation 10 of 12 What is the name of the photo pigment found in cone cells? Iodopsin 11 of 12 What wavelength of light does Pr absorb? 660nm 12 of 12
Comments
Report