Which one of the following statements is true regarding digestion and absorption of food in humans
1. Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like ${\mathrm{Na}}^{+}$
2. Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.
3. About 60% of starch is hydrolysed by salivary amylase in our mouth.
4. Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Which of the following statements is false?
1. The breakdown of most of biomacromolecules occurs in duodenum
2. Simple substances (digested foods) are absorbed in the jejunum and ileum
3. Very significant digestive activity occurs in large intestine
4. Undigested and unabsorbed substances are passed on to the large intestine

Which of the following statements is incorrect?
 

1. I, IV and V
2. V
3. IV
4. II and III

The absorbed substances finally reach the tissues which utilize them for their activities. This process is called:

Succus entericus is a term used for
1. The junction of ileum and colon
2. Inflammation of intestine
3. Vermiform appendix
4. Digestive juice of intestine

An analysis of a patient's diet shows that he ate 90 g carbohydrate, 10 g protein, and 10 g fat each day. Approximately how many calories did this patient consume in one day?
1. 440
2. 470
3. 490
4. 740

Where do certain symbiotic microorganisms normally occur in human body ?
1. Caecum
2. Oral lining and tongue surface
3. Vermiform appendix and rectum
4. Duodenum

Anxiety and eating spicy food together in an otherwise normal human, may lead to
1. Indigestion
2. Jaundice
3. Diarrhoea
4. Vomiting

The initial step in the digestion of milk in humans is carried out by
1. Lipase
2. Trypsin
3. Rennin
4. Pepsin

Which of the following is NOT directly dependent on a person's adequate protein intake?

1. Formation of enzymes

2. Formation of glycogen stores in the liver

3. Production of antibodies in the immune system

4. Production of muscle tissue.