Edexcel Biology Topic 8 quiz

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

Other cards in this set

Card 2

Front

Which neurones has its nucleus situated central to the axon body?

Back

Relay

Card 3

Front

In the reflex arc,the sensory neurone travels back to the effector via which route?

Back

Preview of the front of card 3

Card 4

Front

Pupil's become dilated by contraction in which muscle group?

Back

Preview of the front of card 4

Card 5

Front

In order to depolarise the membrane which substance has to enter the intracellular space in abundance?

Back

Preview of the front of card 5
View more cards

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