Option H

Question 1

3 types of hormones

Answer 1

• Steroid: testosterone, progesterone and estrogen
• Peptide: insulin and glucagon
• Amine: thyroxine

Question 2

Steroid hormones

Answer 2

• Enter target cells through the plasma membrane
• Bind to receptor proteins in the cytoplasm and form a steroid/receptor which affects gene expression
• Can act directly as a transcriptional regulator