Lec 1-3 Kahoot

Question 1

The basic structure of an amino acid in the stomach would have a __________ charge.

Answer 1

positive

the basic structure of an amino acid in the STOMACH would have a positive charge

Question 2

Activation of which of these ion channels enables the threshold to be reached for action potential to be geneated

Answer 2

Nicotinic Acetylcholine Receptors

Question 3

Which of the following protein structures involves interactions between R groups

Answer 3

3D tertiary structures

Question 4

______________ amino acids are likely found on the exterior surface of cytosolic proteins

Answer 4

Hydrophilic (water loving)

Question 5

___________ amino acids cannot form ionic-ionic charge interactions with each other

Answer 5

Hydrophobic (water hating)

Question 6

Which of the following has the highest bond strength of all weak, reversible, electrostatic forces?

Answer 6

Ionic charge-charge interactions

Question 7

TRUE OR FALSE:

An antagonist for a potassium channel would cause the cell to become more negative

Answer 7

FALSE

more positive

Question 8

How many subunits make up a G-Protein?

Answer 8

3

3 subunits make up a G-Protein

Question 9

Which of the following ions moves out of the cell in a resting neuronal cell?

Answer 9

potassium

potassium ions move out of the cell in a resting neuronal cell

Question 10

Which of the following types of receptor regulation results in a reduction of the number of membrane receptors?

Answer 10

downregulation
-results in less receptors available for agonist activation

Question 11

Which of the following parts helps open a voltage-gated ion channel but not a ligand-gated ion channel?

Answer 11

voltage sensor

voltage sensor only helps open a voltage-gated ion channel

Question 12

Which of the following are sections of a nuclear receptor, such as the estrogen receptor?

Answer 12

DNA-binding domain

Ligand-binding domain

other interacts with other transcription factors

Question 13

Out of the following receptors that regulate DNA transcription, which one interacts directly with the DNA itself?

Answer 13

nuclear receptor

nuclear receptors directly bind to DNA

Question 14

Which of the following receptors does not signal through phosphorylation of effector proteins?

Answer 14

Receptor Tyrosine Phosphatase

Key word: phosphatase means REMOVING phosphate group therefore, RTP does not signal through phosphorylation of effector proteins