Lec 1-3 Kahoot Flashcards
The basic structure of an amino acid in the stomach would have a __________ charge.
positive
the basic structure of an amino acid in the STOMACH would have a positive charge
Activation of which of these ion channels enables the threshold to be reached for action potential to be geneated
Nicotinic Acetylcholine Receptors
Which of the following protein structures involves interactions between R groups
3D tertiary structures
______________ amino acids are likely found on the exterior surface of cytosolic proteins
Hydrophilic (water loving)
___________ amino acids cannot form ionic-ionic charge interactions with each other
Hydrophobic (water hating)
Which of the following has the highest bond strength of all weak, reversible, electrostatic forces?
Ionic charge-charge interactions
TRUE OR FALSE:
An antagonist for a potassium channel would cause the cell to become more negative
FALSE
more positive
How many subunits make up a G-Protein?
3
3 subunits make up a G-Protein
Which of the following ions moves out of the cell in a resting neuronal cell?
potassium
potassium ions move out of the cell in a resting neuronal cell
Which of the following types of receptor regulation results in a reduction of the number of membrane receptors?
downregulation
-results in less receptors available for agonist activation
Which of the following parts helps open a voltage-gated ion channel but not a ligand-gated ion channel?
voltage sensor
voltage sensor only helps open a voltage-gated ion channel
Which of the following are sections of a nuclear receptor, such as the estrogen receptor?
DNA-binding domain
Ligand-binding domain
other interacts with other transcription factors
Out of the following receptors that regulate DNA transcription, which one interacts directly with the DNA itself?
nuclear receptor
nuclear receptors directly bind to DNA
Which of the following receptors does not signal through phosphorylation of effector proteins?
Receptor Tyrosine Phosphatase
Key word: phosphatase means REMOVING phosphate group therefore, RTP does not signal through phosphorylation of effector proteins