DP Biology (last assessment 2024)
Question 18M.3.HL.TZ1.19c
| Date | May 2018 | Marks available | [Maximum mark: 3] | Reference code | 18M.3.HL.TZ1.19c |
| Level | HL | Paper | 3 | Time zone | TZ1 |
| Command term | Describe | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 3]
18M.3.HL.TZ1.19c
(c)
Describe the mode of action of steroid hormones.
[3]
Markscheme
a. steroid hormones enter cell / steroid hormones can pass through cell membranes
b. steroid hormones bind to receptor in the cytoplasm
c. the receptor-hormone complex interacts directly with genes/regulates gene expression
d. example (e.g. oestrogen, testosterone, progesterone)
