neuro cell biology

Question 1

A specific _____ _____ is recognized by the signal _____ )______ on the rough ER.

Answer 1

signal sequence, recognition particle

Question 2

. Proteins with signal sequence may be

Answer 2

• ER or golgi resident proteins
• extracellular proteins (hormones, neuropeptides, others)
• transmembrane proteins

Question 3

where are proteins Default destination

Answer 3

is the cytoplasm

Question 4

Acylation

Answer 4

acyl-hydrocarbon groups frequently serve as cytoplasmic membrane anchors

Question 5

Ubiquitination:

Answer 5

targets a protein for degredation by proteasomes rapid

Question 6

Phosphorylation

Answer 6

rapidly reversible modulation of function

Question 7

Three main components of the Cytoskeleton

Answer 7

micro tublue, neuro filament, actin

Question 8

Microglia are Derived from _______and_______

by injury, infection or illness

Answer 8

macrophages, Mobilized

Question 9

Astrocytes and

Oligodendrocytes found in

Answer 9

CNS

Question 10

Schwann cells found

Answer 10

pns

Question 11

Functions of Astrocytes : _______ and _____

endothelial cells of the _________ barrier

Answer 11

Regulate and support, blood-brain

Question 12

Functions of Astrocytes : (regulate __ and ______concentrations, take up ______ ______ )

Answer 12

ion and glucose, excess neurotransmitter

Question 13

main Function of Astrocytes :

Answer 13

Structural support / scaffolding

Question 14

what are the differnces between Schwann cells

and Oligodendrocytes

Answer 14

they are in different places different numbers wrap around the axon

Question 15

Electrical signals carry information ____ neurons

Answer 15

within

Question 16

Chemical signals transmit information ______ most neurons at synapses

Answer 16

between

Question 17

Electrical signals travel

Answer 17

fast, reliable signals

can travel long distances at high speeds

Question 18

Chemical signals are modulation, depending on _______ receptors

Answer 18

excitation, or inhibition postsynaptic