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Nerves and hormones
1.
The over stimulation of nervous tissue by nicotine:
causes nerve damage
promotes growth
protects the body from serious illness
helps to repair nerve cells
2.
Both the nervous and endocrine systems:
use chemicals to transmit messages
use water to make them visible
are water soluble
use chemicals to help the body grow
3.
Nicotine mimics the action of:
neurotransmitters
other chemicals
cytoplasm
other hydrocarbons
4.
Stimulation of the presynaptic membrane causes a change in its electrical
calcium ions to flow in
calcium ions to flow out
sodium ions to flow in
sodium ions to flow out
5.
The neurotransmitter is broken down by a chemical process called:
reduction
hydrolysis
precipitation
oxidation
6.
The neurotransmitter found in synaptic vesicles is called:
acetylcholine
acetylchlorine
acetylene
acetic acid
7.
When the cell membrane is depolarised its permeability:
only allows water molecules out
alters to allow to let sodium ions in
alters to allow chlorine ions in
stays the same
8.
Ion transfer reactions:
are a wave of reactions that move alone the length of the axon
only happens in lower life forms
only happen where the nerve is stimulated
only happens at the ends of the neurone
9.
The axon is:
a hollow tube
just the cell membrane
an extension of the cell cytoplasm
very long dendrons
10.
Nerve cells are also known as:
cytoplasm
nucleus
neurones
impulses
