Match List-I with List-II.

NEET-2023 [Digestion-and-Absorption] [class-xi ]

• A-II, B-IV, C-I, D-III
• A-IV, B-III, C-II, D-I
• A-II, B-I, C-III, D-IV
• A-III, B-I, C-IV, D-II
Correct Option: D  [ A-III, B-I, C-IV, D-II ]

Remark:

Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by:

NEET-2023 [Digestion-and-Absorption] [class-xi ]

• Pyloric sphincter
• Sphincter of Oddi
• Ileo-caecal valve
• Gastro-oesophageal sphincter
Correct Option: C  [ Ileo-caecal valve ]

Remark:

Which of the following functions is not performed by secretions from salivary glands?

NEET-2022 [Digestion-and-Absorption] [class-xi ]

• Digestion of complex carbohydrates
• Lubrication of oral cavity
• Digestion of disaccharides
• Control bacterial population in mouth
Correct Option: C  [ Digestion of disaccharides ]

Remark:

Given below are two statements:
Statement I: Fatty acids and glycerols cannot be absorbed into the blood.
Statement II: Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.
In the light of the above statements, choose the most appropriate answer from the options given below:

NEET-2022 [Digestion-and-Absorption] [class-xi ]

• Both Statement I and Statement II are incorrect
• Statement I is correct but Statement II is incorrect
• Statement I is incorrect but Statement II is correct
• Both Statement I and Statement II are correct
Correct Option: D  [ Both Statement I and Statement II are correct ]

Remark:

Succus entericus is referred to as:

NEET-2021 [Digestion-and-Absorption] [class-xi ]

• Pancreatic juice
• Intestinal juice
• Gastric juice
• Chyme
Correct Option: B  [ Intestinal juice ]

Remark:

Sphincter of oddi is present at:

NEET-2021 [Digestion-and-Absorption] [class-xi ]

• Ileo-caecal junction
• Junction of hepato-pancreatic duct and duodenum
• Gastro-oesophageal junction
• Junction of jejunum and duodenum
Correct Option: B  [ Junction of hepato-pancreatic duct and duodenum ]

Remark:

Identify the correct statement with reference to human digestive system.

NEET-(Sept)2020 [Digestion-and-Absorption] [class-xi ]

• Ileum opens into small intestine.
• Serosa is the innermost layer of the alimentary canal.
• Ileum is a highly coiled part.
• Vermiform appendix arises from duodenum.
Correct Option: C  [ Ileum is a highly coiled part. ]

Remark:

The enzyme enterokinase helps in conversion of:

NEET-(Sept)2020 [Digestion-and-Absorption] [class-xi ]

• protein into polypeptides
• trypsinogen into trypsin
• caseinogen into casein
• pepsinogen into pepsin
Correct Option: B  [ trypsinogen into trypsin ]

Remark:

Intrinsic factor that helps in the absorption of vitamin B₁₂ is secreted by:

NEET-(Oct)2020 [Digestion-and-Absorption] [class-xi ]

• Goblet cells
• Hepatic cells
• Oxyntic cells
• Chief cells
Correct Option: C  [ Oxyntic cells ]

Remark:

The proteolytic enzyme rennin is found in:

NEET-(Oct)2020 [Digestion-and-Absorption] [class-xi ]

• Intestinal juice
• Bile juice
• Gastric juice
• Pancreatic juice
Correct Option: C  [ Gastric juice ]

Remark: