Which statement about lipoproteins is TRUE?   a high-density lipoproteins transport cholesterol from the liver to the cells   b lipoproteins can transport fats from storage sites to sites where they are used   c the liver is solely responsible for the synthesis of lipoproteins   d very-low-density lipoproteins transport cholesterol from cells to the liver   e increasing lipid (fat) content of a lipoprotein would increase its density

37. The enteric nervous system is a specialized division of the nervous system associated with only the alimentary canal. Which of the following statements are true regarding the enteric nervous system? Uses the sympathetic nervous system to inhibit digestion and the parasympathetic nervous system to stimulate digestion b. The submucosal nerve plexus in the submucosal layer is activated via mechano- and chemoreceptors found in the mucosal layer The myenteric nerve plexus found in the muscularis layer controls the a. c. contraction of skeletal muscle to move chyme through the alimentary canal d) A and B only

4. A sportsman is doing a 10 km marathon for 1.5 hours. What changes in lipid metabolism in adipose tissue and muscles are triggered by long-term physical activity? To answer the question: a) name the hormone, controlling the lipid metabolism in adipocytes and write down the scheme of the process; b) explain, how some of the products of lipid mobilization, transported from adipocytes to the bloodstream, would be utilized by skeletal muscles and liver in these conditions; c) calculate the ATP yicld in the result of palmitolcic acid oxidation.

e B functions in [ Select] [ Select] A- collecting food B- swimming C- gas exchange D- digestion E- secreting the shell Both A & E

7) Which of the following answer choices correctly describes the mechanism by which lipids are transported in blood plasma. Select one: a. Saturated fatty acids are hydrophyllic and can transport in aqueous media b. Lipids form fat droplets c. Transport is facilitated by lipoprotein lipase d. Lipids are conjugated to a protein forming a lipoprotein

What statement is true regarding LDL? Because the LDL is plasma lipoproteins with a lipid bilayer, it readily fuses with the plasma membrane of target cells. The LDL participle binds to the target cell LDL receptor and is endocytosed LDL is not taken up by target cells but serves to scavenge (remove) cholesterol for recycling LDL is produced in the liver as the least dense plasma lipoproteins and is exported from the liver to transport only tricyglycerol. None of the above

In the figure, cells of the secrete HCI, which Pepsinogen Pepsin HCI Lumen a. small intestine epithelium; keeps pepsin in its inactive form so the cells themselves are not digested O b. stomach epithelium; activates pepsinogen to form pepsin O c. pancreas; activates pepsinogen to form pepsin d. stomach submucosa; causes a low pH that activates pepsin е. pancreas epithelium; causes high acidity in the stomach, activating pepsinogen as a digestive enzyme

4. Glucose and amino acids are absorbed in the A. stomach; facilitated diffusion B. stomach; osmosis by C. large intestine; osmosis D. small intestine; diffusion E. small intestine; active transport 1 5. Which of the following hormones increases pancreatic juice (contains enzymes and bicarbonate ions) secretion during the intestinal phase? I. Gastrin II. Secretin III. Cholecystokinin A. I only В. II only C. I and II only D. II and III only Е. I, II and II.

Sodium (Na+) is more likely absorbed in the small intestine with which of the following a. fat b. glucose c. amino acids O a b O C Od Oe d. water e. (b, c)

Products of lipolysis (intracellular TAG hydrolysis), fatty acids and glycerol are released from adipose tissue when energy demands increase during fasting Select INCORRECT statements (Select ALL)? OA. Glucagon inhibits lipolysis in adipose tissues 8. Fatty acids are used for synthesis of ketone bodies in the liver OC. Fatty acids are used as energy substrate in muscle sparing glucose for brain and glucose obligatory cells D. Ketones are used as alternative fuels in muscle sparing glucose for brain use E. Ketone synthesis increases when there is sufficient oxaloacetate for the TCA cycle to run F. Glycerol is mainly uptaken into muscle and used as an energy source during fasting