Module 2: Chemical Messengers chemical properties

Question 1

What does it mean to be lipophilic

Answer 1

Can pass through the plasma membrane, typically have receptors within the cell

Question 2

What does it mean to be lipophobic

Answer 2

cannot pass through the plasma membrane, so the receptors are typically on the plasma membrane

Question 3

Are lipophobic messengers hydrophobic or hydrophilic

Answer 3

Hydrophilic, polar

Question 4

Are lipophilic messengers hydrophobic or hydrophilic

Answer 4

Hydrophobic, non-polar

Question 5

What are the 5 chemical messengers

Answer 5

1. Amino acids
2. Amines
3. Peptides/proteins
4. Steroids
5. Eicosanoids

Question 6

Amino acids

Answer 6

Lipophobic , receptor on plasma membrane, classified as neurotransmitters

Question 7

Amines

Answer 7

Lipophobic , receptor on plasma membrane, classified as neurotransmitters/paracrines/hormones

Question 8

Peptides/proteins

Answer 8

Lipophobic , receptor on plasma membrane, classified as neurotransmitters/paracrines/hormones

Question 9

Steroids

Answer 9

Lipophilic, receptor in the cytosol, classified as hormones

Question 10

Eicosanoids

Answer 10

Lipophilic, receptor in the cytosol, classified a paracrine