Chapter 2 Neurons and Glia

Chapter 2 Neurons and Glia
1. What does the "neuron doctrine" state? Choose the correct option.
A) Neurites of different cells fuse together to form a continuous
reticulum. B) Individual cells communicate by contact and not
continuity.
C) The cell body of a neuron contains
organelles.
D) The elementary functional unit of all tissues is the
individual cell.




2. What is a primary function ofMAPs? Choose the correct option.
A) Regulate the function and assembly of
microtubules
B) Regulate the function and assembly of
microfilaments C) Regulate the function and
assembly of neurofilaments D) Regulate the function
and assembly of cytoskeleton




3. Neurons comprise two main structures: axons and dendrites. What is a major
difference between the two? Choose the correct option.
A) Dendrites are of uniform diameter throughout, whereas axons taper to
a point.
B) Dendrites receive incoming signals from other neurons, whereas axons
carry the output of neurons.
C) A cell body gives rise to a single dendrite and multiple
axons.

, D) Dendrites travel long distances, whereas axons are always
short.




4. A scientist looks through a microscope at the structure of a neuron. The scientist
notices a layer of molecules separating the neuron's intracellular space from the
extracellular space. What is this part of the neuron known as? Choose the correct
option.
A)
Organelle
B)
Soma
C) Neuronal
membrane
D) Nuclear
envelope




5. What do you understand by the term translation? Choose the correct option.
A) Assembling a piece of
mRNA
B) Assembling proteins from amino
acids
C) Removal of introns and specific
exons
D) The "reading" of
DNA




6. What is the most important function of the rough endoplasmic reticulum? Choose
the correct option.