If the pancreas is removed,the compounds that remain undigested are

Match the following columns regarding the absorption of substances in the human digestive system:

Column-$I$	Column-$II$
$(a)$ Small intestine	$(1)$ Certain drugs
$(b)$ Stomach	$(2)$ Water,some minerals,and drugs
$(c)$ Mouth	$(3)$ Water,simple sugars,and alcohol
$(d)$ Large intestine	$(4)$ Glucose,fructose,and amino acids

$A$ person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal. What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food?

Which of the following statements is incorrect regarding the human digestive system?

$A-$ About $30\%$ of starch is hydrolyzed by salivary amylase (optimum $pH\, 6.8$) in the buccal cavity.
$R-$ The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme.

$A$ healthy person eats the following diet: $5 \, gm$ raw sugar,$4 \, gm$ albumin,$10 \, gm$ pure buffalo ghee adulterated with $2 \, gm$ vegetable ghee (hydrogenated vegetable oil),and $5 \, gm$ lignin. How many calories is he likely to get?