2.2 Study the graph below and answer the questions that follow
The hormone levels of a mature woman over a 28 day cycie
SG,
om
Progesterone
Destrogen,
Level of hormones
FSH
2
4
8
10
12 14 16 18 20 22 24 26 28
Days
2.2.1
Identify hormone X.
2.2.2
Name the gland that secretes FSH.
2.2.3
Would the uterine lining be thick or thin during days 6-8?
2.2.4
Explain why oestrogen increases from day 8.​

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.