Lecture 2 Flashcards
1
Q
What are steroids synthesised from
A
Cholesterol
2
Q
How are thyroxine synthesised
A
In the thyroid gland by iodinating and coupling of tyrosine molecules using thyroglobulin
3
Q
What is the structure of steroids
A
4 fused carbon rings
3 six carbon ones and 1 5 Carbon rings
4
Q
What is the major sterol in animal tissues
A
Cholesterol
5
Q
What is cholesterol the starting molecule for
A
Bile acids, steroid hormones
6
Q
Name three examples of steroids
A
Testosterone, progesterone, cortisol
7
Q
Where are steroids synthesised
A
Placenta, ovary, testes, adrenal gland
8
Q
How are steroids transported in the blood
A
Carrier proteins such as albumin and globulin
9
Q
What is thyroxine t3 composed of
A
3 iodine atoms
10
Q
What’s is t4 composed of
A
3 iodine atoms
