Which one of the following vitamins can be synthesized by bacteria inside the gut?

Identify the incorrect statement.

Study the following diagram showing $(P-S)$ labelling and choose the correct option that shows two correct matches.

Match the following structures with their respective location in organs:

$(a)$ Crypts of Lieberkuhn	$(i)$ Pancreas
$(b)$ Glisson's Capsule	$(ii)$ Duodenum
$(c)$ Islets of Langerhans	$(iii)$ Small intestine
$(d)$ Brunner's Glands	$(iv)$ Liver

Select the correct option from the following:

Go through the following statements regarding the physiology of digestion and identify whether they are true or false. Choose an appropriate option from the codes given below:
$I.$ Largest variety of hydrolases are present in omnivores,while the herbivores generally lack digestive enzymes.
$II.$ Digestive enzymes are of four types,namely,amylase,proteinases,lipases,and nucleases.
$III.$ Proteinases are also known as proteases,which are released in the active form because the proteins,either cellular or extracellular,are all hydrolysed by them in the absence of food.
$IV.$ Hydrolases and cholecystokinin are secreted by the exocrine part of the pancreas.

$A$ 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?