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Rec 9/6

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Quiz sobre Rec 9/6, criado por Hannah Miller em 22-09-2019.
Hannah Miller
Quiz por Hannah Miller, atualizado more than 1 year ago
Hannah Miller
Criado por Hannah Miller mais de 4 anos atrás
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Resumo de Recurso

Questão 1

Questão
In a neuron, ______ receives inputs from other neurons, _______ integrates information, and ________ transmits the output of processing to other neurons.
Responda
  • Dendrite; soma; axon
  • Soma; dendrite; axon
  • axon; soma; dendrite
  • dendrite; axon; soma

Questão 2

Questão
How do neurons differ from other cells?
Responda
  • ,
  • .
  • processes, stop dividing after birth (ish), designed to receive/transduce signals

Questão 3

Questão
Protein synthesis occurs in the [blank_start]cytosol (via ribosomes)[blank_end]. Because DNA does not leave the [blank_start]nucleus[blank_end], the intermediary, called [blank_start]mRNA[blank_end] must be formed during the process of transcription.
Responda
  • cytosol (via ribosomes)
  • nucleus
  • mRNA

Questão 4

Questão
Alternative splicing refers to:
Responda
  • Joining of RNA from two different genes to forma new mRNA
  • Splicing out of damaged DNA by DNA repair enzymes
  • Use of alternative reading frames when translating an mRNA

Questão 5

Questão
In 1800, [blank_start]Galvani[blank_end] and [blank_start]Reymond[blank_end] proposed that electrical stimulation of nerves causes muscle movement.
Responda
  • Galvani
  • Reymond

Questão 6

Questão
Camilo Golgi argued for [blank_start]reticular[blank_end] formation of the brain after he used [blank_start]silver chromate (Golgi stain)[blank_end] that stained a small percentage of neurons and stained those neurons in their [blank_start]entirety[blank_end].
Responda
  • reticular
  • silver chromate (Golgi stain)
  • entirety

Questão 7

Questão
[blank_start]Brodmann[blank_end]'s work has laid the foundation for defining 50 distinct regions of neocortex.
Responda
  • Brodmann

Questão 8

Questão
Charles Bell and Francois Magendie hypothesized that [blank_start]dorsal[blank_end] roots of the spinal cord carry sensory information into the brain, while [blank_start]ventral[blank_end] roots carry information into muscles.
Responda
  • dorsal
  • ventral

Questão 9

Questão
Proteins synthesized on [blank_start]free floating ribosomes[blank_end] are destined for internal structures including [blank_start]nucleus, mitochondria, etc[blank_end].
Responda
  • free floating ribosomes
  • nucleus, mitochondria, etc

Questão 10

Questão
Proteins synthesized on [blank_start]rough ER[blank_end] are destined to be inserted into the [blank_start]plasma membrane[blank_end] or [blank_start]vesicles[blank_end] to be released later on from neurons.
Responda
  • rough ER
  • plasma membrane
  • vesicles

Questão 11

Questão
The function of [blank_start]mitochondria[blank_end] is to import oxygen and use it in a series of complex biochemical processes called Krebs Cycle and ETC to produce the energy source of the cell.
Responda
  • mitochondria

Questão 12

Questão
[blank_start]Golgi bodies[blank_end] and [blank_start]rough ER[blank_end] are the sites where proteins are modified and folded.
Responda
  • Golgi bodies
  • rough ER

Questão 13

Questão
In order to determine the function of genes that are "neuron-specific," genetic engineering methods can be used to [blank_start]knock in[blank_end] or [blank_start]knock out[blank_end] a given gene. Ex. 1 [blank_start]Knock in - HR insert[blank_end] Ex. 2 [blank_start]Knock out - NHEJ delete[blank_end]
Responda
  • knock in
  • knock out
  • Knock in - HR insert
  • Knock out - NHEJ delete

Questão 14

Questão
A single nucleotide is composed of a phosphate group, a [blank_start]pentose[blank_end], and a [blank_start]nitrogenous base[blank_end].
Responda
  • pentose
  • nitrogenous base

Questão 15

Questão
The fluid inside every cell is called [blank_start]cytosol[blank_end].
Responda
  • cytosol

Questão 16

Questão
The [blank_start]Nissl[blank_end] stain allows you to label cell bodies and ribosomes.
Responda
  • Nissl

Questão 17

Questão
Since DNA does not ever leave the nucleus, a special intermediary molecule called [blank_start]ribosomal ribonucleic acid (mRNA)[blank_end] must be formed.
Responda
  • ribosomal ribonucleic acid (mRNA)

Questão 18

Questão
According to the [blank_start]reticular theory[blank_end], nerves are like continuous wires that transmit signals from one location to another.
Responda
  • reticular theory

Questão 19

Questão
DNA [blank_start]microarrays[blank_end] are useful because they can help determine which genes are expressed uniquely in neurons via relative abundance of mRNA.
Responda
  • microarrays

Questão 20

Questão
Current [blank_start]genetic engineering[blank_end] methods include Cre-lox recombination, Zinc-Finger Proteins, or CRISPR CAS9.
Responda
  • genetic engineering

Questão 21

Questão
Signal recognition particles may direct the ribosome to [blank_start]rough[blank_end] endoplasmic reticulum.
Responda
  • rough

Questão 22

Questão
The first [blank_start]electron[blank_end] microscope images in the [blank_start]1950s[blank_end] that were taken of neurons offered very strong evidence for the neuron doctrine.
Responda
  • electron
  • 1950s

Questão 23

Questão
The plasma membrane is a lipid bilayer with [blank_start]hydrophilic[blank_end] parts on the outside and [blank_start]hydrophobic[blank_end] parts on the inside.
Responda
  • hydrophilic
  • hydrophobic

Questão 24

Questão
[blank_start]Substrate[blank_end] goes freely through the plasma membrane.
Responda
  • Substrate

Questão 25

Questão
Salt gradients require [blank_start]a lot[blank_end] of energy to maintain.
Responda
  • a lot

Questão 26

Questão
The ribosome is comprised of a small and large subunit; the free floating [blank_start]small[blank_end] finds the mRNA first and recruits the [blank_start]large[blank_end].
Responda
  • small
  • large

Questão 27

Questão
Walk through transcription and translation from DNA to secreted, cytosol bound, or membrane protein[blank_start]s.[blank_end]
Responda
  • s.

Questão 28

Questão
Two types of Neurites that extend from neurons. [blank_start]Dendrites[blank_end]: [blank_start]shorter[blank_end], [blank_start]unmyelinated[blank_end], [blank_start]have ribosomes for protein synthesis[blank_end], [blank_start]spines[blank_end]. [blank_start]Axons[blank_end]: [blank_start]Myelination[blank_end], [blank_start]longer[blank_end], [blank_start]rarely branching (only at 90 degrees)[blank_end], [blank_start]nodes of Ranvier[blank_end]
Responda
  • Dendrites
  • shorter
  • unmyelinated
  • have ribosomes for protein synthesis
  • spines
  • Axons
  • Myelination
  • longer
  • rarely branching (only at 90 degrees)
  • nodes of Ranvier

Questão 29

Questão
Three main components of cytoskeleton are: [blank_start]microfilaments[blank_end], [blank_start]microtubules[blank_end], and [blank_start]neurofilaments[blank_end].
Responda
  • microfilaments
  • microtubules
  • neurofilaments

Questão 30

Questão
List functions of the cytoskeleton: [blank_start]provides structure[blank_end], [blank_start]transports stuff[blank_end], [blank_start]allows flexibility for cell migration[blank_end], [blank_start]cell division[blank_end]
Responda
  • provides structure
  • transports stuff
  • allows flexibility for cell migration
  • cell division

Questão 31

Questão
The [blank_start]axon hillock[blank_end] forms the initial part of the axon as it emerges from the soma.
Responda
  • axon hillock

Questão 32

Questão
The [blank_start]terminal boutons[blank_end] is the site of termination of axon; forms a [blank_start]synapse[blank_end] with receiving membrane.
Responda
  • terminal boutons
  • synapse

Questão 33

Questão
Axons lack [blank_start]ribosomes[blank_end] and all proteins must be transported from the [blank_start]soma[blank_end].
Responda
  • ribosomes
  • soma

Questão 34

Questão
Fast axonal transport is carried out through the use of what cytoskeletal machinery? [blank_start]Microtubules (kinesins and dynein)[blank_end]
Responda
  • Microtubules (kinesins and dynein)

Questão 35

Questão
Alzheimer's is thought to be due to what failing structure - what causes this structure to fail? [blank_start]tau proteins fail (stabilizer)[blank_end] leads to [blank_start]microtubules failing[blank_end]
Responda
  • tau proteins fail (stabilizer)
  • microtubules failing

Questão 36

Questão
[blank_start]Anterograde[blank_end] transport is directed towards the terminal and utilizes [blank_start]kinesins[blank_end] while [blank_start]retrograde[blank_end] transport is directed towards the soma and uses [blank_start]dyneins[blank_end].
Responda
  • Anterograde
  • kinesins
  • retrograde
  • dyneins

Questão 37

Questão
Neurons can be classified based on the number of [blank_start]direct neurites (processes)[blank_end], 1 referring to [blank_start]unipolar[blank_end] cells, 2 to [blank_start]bipolar[blank_end] cells, and more as [blank_start]multipolar[blank_end].
Responda
  • direct neurites (processes)
  • unipolar
  • bipolar
  • multipolar

Questão 38

Questão
What are other ways to classify neurons? [blank_start]Spines[blank_end], [blank_start]morphology[blank_end] (length, arborization of dendrites)
Responda
  • Spines
  • morphology

Questão 39

Questão
Spines can preform translation due to [blank_start]ribosomes[blank_end].
Responda
  • ribosomes

Questão 40

Questão
What is the purpose of spines? What happens if they are malformed? [blank_start]Learning and memory (flexibility)[blank_end] Same amount of NT will excite more with repeated firing. Unused dendrites will lose spines.
Responda
  • Learning and memory (flexibility)

Questão 41

Questão
[blank_start]Bipolar neurons[blank_end] have two neurites, most likely to be interneurons.
Responda
  • Bipolar neurons

Questão 42

Questão
[blank_start]Multipolar cells[blank_end] are likely to be motor neurons
Responda
  • Multipolar cells

Questão 43

Questão
[blank_start]Motor neurons[blank_end] are likely to be found in ventral roots
Responda
  • Motor neurons

Questão 44

Questão
List four types of glial cells. [blank_start]?[blank_end]
Responda
  • ?

Questão 45

Questão
[blank_start]Oligodendrocytes[blank_end] myelinate single axons in the PNS while [blank_start]Schwann cells[blank_end] are also responsible for myelinating single axons in the CNS
Responda
  • Oligodendrocytes
  • Schwann cells

Questão 46

Questão
List factors that can activate microglia. Microglia are to the brain as [blank_start]?[blank_end] are to the rest of the body.
Responda
  • ?

Questão 47

Questão
Some functions of astrocytes: ?[blank_start]?[blank_end]
Responda
  • ?

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