Please help! not sure how to answer these.. QUESTION 1 Where does most chemical
ID: 163825 • Letter: P
Question
Please help! not sure how to answer these..
QUESTION 1
Where does most chemical breakdown of carbohydrates occur?
A.
The small intestine
B.
The mouth
C.
The stomach
D.
The large intestine
QUESTION 2
The pancreas produces
A.
bicarbonate and enzymes.
B.
bicarbonate and bile.
C.
pepsin and bile.
D.
bile and enzymes.
QUESTION 3
Bile participates in the digestion of ______. Its specific function is to ______.
A.
fats . . . break down fats into glycerol and fatty acids
B.
fats . . . emulsify fats
C.
starch . . . break down starch into maltose
D.
proteins . . . break down proteins into short polypeptides
QUESTION 4
After chemical breakdown in the small intestine, nutrients are absorbed across the intestinal wall. Where do the nutrients go from there?
A.
Water soluble nutrients go into the bloodstream to the liver. Fats go into the lymphatic system.
B.
Fats go into the bloodstream to the liver. Water soluble nutrients go into the lymphatic system.
C.
All nutrients go into the bloodstream to the liver.
D.
All nutrients go into the lymphatic system.
QUESTION 5
Which three are all monosaccharides?
A.
glucose, fructose, galactose
B.
maltose, sucrose, lactose
C.
glucose, fructose, sucrose
D.
fructose, galactose, lactose
QUESTION 6
Many adults are lactose intolerant. What causes this?
A.
They break down and absorb lactose, thereby depriving the bacteria in the colon of lactose as an energy source.
B.
They can't break down and absorb lactose, so the bacteria in their colon digest the lactose instead.
C.
Lactose provokes an autoimmune response that irritates their intestinal lining.
D.
Lactose binds to the cells of their intestinal wall, blocking the absorption of other nutrients.
A.
The small intestine
B.
The mouth
C.
The stomach
D.
The large intestine
Explanation / Answer
1. A. Small intestine.
Complete digestion of food stuffs like carbohydrates, protiens and fats occur in small intestine.
2). A. bicarbonate and enzymes.
Bile is not produced by pancreas but by liver. Pancreas produces pancreatic juice which contains enzymes and sodium bicarbonate.
3). B. fats . . . emulsify fats.
Bile helps in fat digestion by emulsifying fats.
4). C. All nutrients go into the bloodstream to the liver.
5). A. glucose, fructose, galactose.
These are all monosaccharides.
6). B.They can't break down and absorb lactose, so the bacteria in their colon digest the lactose instead.