Unit 2 (BIO)
Quiz 1
Which is not a function of the cerebrospinal fluid?
It cushions the brain.
It increases pressure at the base of the brain.
It protects the central nervous system.
It fills the subarachnoid space.
It increases pressure at the base of the brain.
Neurotransmitters
carry electrical impulses
are found only in neurons with myelin sheaths
are produced by muscles
are signal molecules released at synapses
are signal molecules released at synapses
Glucose reacted with oxygen and catalyzed in the presence of?
glucosedioxidase
glucose oxidase
glucose monooxidase
glucose dioxidase
glucose oxidase
The difference in voltage between the inside and outside of a resting cell is called
depolarisation
resting potential
repolarisation
action potential
resting potential
Quiz 2
What is the primary purpose of the spinal cord?
to facilitate the communication between the two hemispheres
to transmit electrical signals between the brain and the rest of the body
to transmit electrical signals around the brain
to produce hormones and neurotransmitters
to transmit electrical signals between the brain and the rest of the body
The central nervous system consists of the
spinal nerves only
brain stem and the cerebellum
cerebrum and the spinal column
brain and spinal cord
brain and spinal cord
Which is not a function of the cerebrospinal fluid?
It cushions the brain.
It increases pressure at the base of the brain.
It protects the central nervous system.
It fills the subarachnoid space.
It increases pressure at the base of the brain.
Interactions between neurons commonly occur across junctions called
Axon
Neurotransmitter
synapse
Myelin sheath
synapse
Surprise Test
The change in electrical charge that occurs in a neuron when a nerve impulse is transmitted is known as the:
action potential
synaptic change
refractory period
ionic charge
action potential
What do we call the layer of fatty tissue surrounding the axon of some neurons?
cutaneous coating
myelin sheath
dendritic barrier
synaptic sleeve
myelin sheath
Which of the following is NOT a lobe of the brain?
frontal
dorsal
parietal
temporal
dorsal
Communication within neurons is __, communication between neurons is.
excitatory, inhibitory
inhibitory, excitatory
chemical, electrical
electrical, chemical
electrical, chemical
Where would you find taste buds?
on the tongue
on the walls of the mouth
at the back of the throat
all of the above
- pending
Sensation is to as perception is to .
vision, olfaction
conscious, unconscious
awareness, interpretation
taste, vision
awareness, interpretation
Enzymes are polymers of
Hexose group
Amino acids
Fatty acids
None of these
Amino acids
The General Mechanism is that an Enzyme Acts By:
Reducing the activation energy
Increasing activation energy
Decreasing pH value
Increasing the pH value
Reducing the activation energy
Without the nervous system, you couldn’t
Walk
Breathe
Think
All of the above
All of the above
The nervous system is made up of these three parts:
Brain, heart, and spinal cord
Brain, spinal cord, and nerves
Nerves, arteries, and veins
Nerves, liver, and heart
Brain, spinal cord, and nerves
Which part of the body is the control center for the nervous system?
Spinal cord
stomach
Brain
Heart
Brain
Which part of the brain helps keep your balance so you don’t fall flat on your face?
Cerebellum
Medulla oblongata
Pituitary gland
Spinal cord
Cerebellum
