Sliding filament theorey

Question 1

chemicals at synapse

Answer 1

acetal colyne

Question 2

what is the sarcoplasmic rheticulum

Answer 2

stores ca+ ions

Question 3

what does the myolin sheath do

Answer 3

act as an insulator for the electric signals

Question 4

whats at the end of the axon terminals

Answer 4

motor end plates

Question 5

what is a power stroke

Answer 5

when the myosin heads pull on the actin once

Question 6

what is the ratchet mechanism

Answer 6

lots of power strokes

Question 7

what is the action potential

Answer 7

it is the strength of signal that has to be reached for anything to happen

Question 8

what is tetanus

Answer 8

when the muscle is contracting as fast as it can so maximal contracion strength happened and there is no time for muscles to relax

Question 9

what is actin

Answer 9

the protein in the centre of the muscle fibre that is pulled on

Question 10

what is tropomyosin

Answer 10

a globular protein that blocks the binding sites of the myosin heads until the troponin moves due to the presence of ca+ ions