True or false: glucose, protein, glycerol, and long-chain fatty acids are absorbed from the small intestine directly into the bloodstream.

The given statement is false.

The lumen of the small intestine allows smaller molecules to pass down the walls of small intestine. The Glycerol, protein, and the long chain fatty acids cannot pass through the wall of the small intestine, so, they are first broken down into simpler molecules and then they are absorbed through the lumen of the small intestine to blood.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.