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Lernmaterialien für Biological Foundations of Neuroscience an der Universität Oldenburg

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TESTE DEIN WISSEN

Which three modification of the chromatin generally exist?

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TESTE DEIN WISSEN
  • Methylation: condensates the chromatin
  • Acetylation: Addition of acetyl groups to the positively charged lysines in Histon. 
  • Phosphorylation: can loosen chromatin in addition to methylated amino acids
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TESTE DEIN WISSEN
What is a phosphorylation? 
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TESTE DEIN WISSEN
A phosphorylation is the transfer of one phosphate group onto protein. This is conducted by specific proteins called kinase. The removal is called dephosphorylation and is done by other proteins called phosphates. The phosphorylation is used to activate or silence a protein depending on its structure. 
Lösung ausblenden
TESTE DEIN WISSEN
What is a ionotropic receptor? 
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TESTE DEIN WISSEN
A ionotropic receptor is a trans membrane protein which binds specific molecules and contains an ion channel.
Apoon boundage the receptor will change conformation and thereby opens the ion channel. 
Lösung ausblenden
TESTE DEIN WISSEN

What is a trans-regulatory element?

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TESTE DEIN WISSEN

Soluble molecules which bind to a cis-regulatory element. 

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TESTE DEIN WISSEN
What determines the optimal eye? 
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TESTE DEIN WISSEN

  • Adjustable sensitivity
  • Good resolution
  • Excellent accomodation
  • Good spatial discrimination
  • High temporal resolution - > rapid regeneration of pigment function
Lösung ausblenden
TESTE DEIN WISSEN
Which amino acids are polar? 
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TESTE DEIN WISSEN
Asparigine       Asn      N
Glutamine      Gln      Q
Serine              Ser     S
Threonine      Thr     T
Tyrosine         Tyr     Y
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TESTE DEIN WISSEN
Which amino acids are nonpolar? 
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TESTE DEIN WISSEN
Alanine              Ala         A
Glycine              Gly        G
Valine               Val         V
Leucine. Leu. L
Isoleucine Ile I
Proline Pro P
Phenylalanine Phe F
Methionine Met M
Tryptophan Trp W
Cysteine Cys C
Lösung ausblenden
TESTE DEIN WISSEN
What is a heterotrimeric G-Protein? 
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TESTE DEIN WISSEN
A protein which binds GTP and GDP and which consists out of three subunits. They are declared as α-, β- and η-subunits. The α-subunit hearby binds the GTP/GDP. Bonding of GTP separates the subunits into the α-subunit and a complex out of β- and γ-subunit. 
Lösung ausblenden
TESTE DEIN WISSEN
How can you calculate the molar mass of a substance? 
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TESTE DEIN WISSEN
The molar mass of a substance will be calculated by addition of the molar masses of each single atom in the substance. 
Lösung ausblenden
TESTE DEIN WISSEN
Which molecules form the membrane? 
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TESTE DEIN WISSEN
Phospholipides and proteins

The membrane is a fluid mosaic meaning that the molecules which build her up are freely moveable.
Lösung ausblenden
TESTE DEIN WISSEN
How do you determine the class of a neuron? 
Lösung anzeigen
TESTE DEIN WISSEN
The class of a neuron is determined by the molecules it produces, its morphology, its function in a system and the connections it has to other cells. 
Lösung ausblenden
TESTE DEIN WISSEN
Which mechanisms stabilize the tertiary structure of a protein? 
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TESTE DEIN WISSEN
  • Ionic bond
  • Hydrogen bond
  • Van der Waals attraction between dipoles and induced dipols
  • Sulfid bridges
Lösung ausblenden
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  • 892 Studierende
  • 4 Lernmaterialien

Beispielhafte Karteikarten für deinen Biological Foundations of Neuroscience Kurs an der Universität Oldenburg - von Kommilitonen auf StudySmarter erstellt!

Q:

Which three modification of the chromatin generally exist?

A:
  • Methylation: condensates the chromatin
  • Acetylation: Addition of acetyl groups to the positively charged lysines in Histon. 
  • Phosphorylation: can loosen chromatin in addition to methylated amino acids
Q:
What is a phosphorylation? 
A:
A phosphorylation is the transfer of one phosphate group onto protein. This is conducted by specific proteins called kinase. The removal is called dephosphorylation and is done by other proteins called phosphates. The phosphorylation is used to activate or silence a protein depending on its structure. 
Q:
What is a ionotropic receptor? 
A:
A ionotropic receptor is a trans membrane protein which binds specific molecules and contains an ion channel.
Apoon boundage the receptor will change conformation and thereby opens the ion channel. 
Q:

What is a trans-regulatory element?

A:

Soluble molecules which bind to a cis-regulatory element. 

Q:
What determines the optimal eye? 
A:

  • Adjustable sensitivity
  • Good resolution
  • Excellent accomodation
  • Good spatial discrimination
  • High temporal resolution - > rapid regeneration of pigment function
Mehr Karteikarten anzeigen
Q:
Which amino acids are polar? 
A:
Asparigine       Asn      N
Glutamine      Gln      Q
Serine              Ser     S
Threonine      Thr     T
Tyrosine         Tyr     Y
Q:
Which amino acids are nonpolar? 
A:
Alanine              Ala         A
Glycine              Gly        G
Valine               Val         V
Leucine. Leu. L
Isoleucine Ile I
Proline Pro P
Phenylalanine Phe F
Methionine Met M
Tryptophan Trp W
Cysteine Cys C
Q:
What is a heterotrimeric G-Protein? 
A:
A protein which binds GTP and GDP and which consists out of three subunits. They are declared as α-, β- and η-subunits. The α-subunit hearby binds the GTP/GDP. Bonding of GTP separates the subunits into the α-subunit and a complex out of β- and γ-subunit. 
Q:
How can you calculate the molar mass of a substance? 
A:
The molar mass of a substance will be calculated by addition of the molar masses of each single atom in the substance. 
Q:
Which molecules form the membrane? 
A:
Phospholipides and proteins

The membrane is a fluid mosaic meaning that the molecules which build her up are freely moveable.
Q:
How do you determine the class of a neuron? 
A:
The class of a neuron is determined by the molecules it produces, its morphology, its function in a system and the connections it has to other cells. 
Q:
Which mechanisms stabilize the tertiary structure of a protein? 
A:
  • Ionic bond
  • Hydrogen bond
  • Van der Waals attraction between dipoles and induced dipols
  • Sulfid bridges
Biological Foundations of Neuroscience

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