Epithelial cells of the intestine involved in food absorption have on their surface:
Pinocytic vesicles
Phagocytic vesicles
Zymogen granules
Microvilli
A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out is quite yellowish. What is this yellow colour due to?
Intestine juice
Bile pigments passed through bile juice
Undigested milk protein, casein
Pancreatic juice poured into duodenum
Which one is correctly matched?
Vitamin-E - Tocopherol
Vitamin-D - Riboflavin
Vitamin-B - Calciferol
Vitamin-A - Thiamine
In vertebrates lacteals are found in:
Ileum
Ischium
Esophagus
Night blindness
During prolonged fasting, in what sequence are the following organic compounds used up by the body?
First carbohydrates, next proteins and lastly lipids
First proteins, next lipids and lastly carbohydrates
First carbohydrates, next fats and lastly proteins
First fats, next carbohydrates and lastly proteins
The richest sources of vitamin-B12 are:
Goat's liver and Spirulina
Chocolate and green gram
Rice and hen's egg
Carrot and chicken's breast
What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor ?
Gastric juice will be deficient in chymosin
Gastric juice will be deficient in pepsinogen
In the absence of HCI secretion, inactive pepsinogen is not converted into the active enzyme pepsin
Enterokinase will not be released from the duodenal mucosa and so, trypsinogen is not converted to trypsin
Which one of the following pairs of food components in humans reaches the stomach totally undigested ?
Protein and starch
Starch and fat
Fat and cellulose
Starch and cellulose
To which of the following family do folic acid and pantothenic acid belong ?
Vitamin-C
Vitamin-K
Vitamin-A
Vitamin-B complex
Which part of body secretes the hormone secretin?
Oesophagus
Duodenum
Stomach
