Tag: digestive system of human

Quizzes (24) Questions (225)

Questions Related to digestive system of human

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Absorption of glycerol, fatty acids and monoglycerides takes place by

  1. Lymph vessels within villi

  2. Walls of stomach

  3. Colon

  4. Capillaries within villi
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fatty acids and glycerol are insoluble in water and are incorporated into micelles, then resynthesized into chylomicrons. These chylomicrons are transported into the lacteals, which are lymphatic vessels located within the intestinal villi.

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Which enzymes are likely to act on the baked potatoes eaten by a man, starting from mouth and as it moves down the alimentary canal

  1. Disaccharidase like maltase lipases nucleases

  2. Salivary amylase pancreatic amylase disaccharidases

  3. Salivary maltase carboxypeptidase trypsinogen

  4. Pancreatic amylase salivary amylase lipases
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Baked potatoes consist primarily of starch. Digestion begins in the mouth with salivary amylase, continues in the small intestine with pancreatic amylase, and concludes with disaccharidases (like maltase) in the brush border.

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Choose the correct answer from the allternatives given.
What is the name of the portion of alimentary canal which crushes the food ?

  1. Crop

  2. Gizzard

  3. Oesophagus

  4. Stomach
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Answer B: Gizzard

Stomach constructed of thick muscular walls is used for grinding up food, often aided by particles of stone or grit. In certain insects, the gizzard features chitinous plates or teeth.

Multiple choice bio-chemistry digestive system of human absorption of food absorption parts of the digestive system: structure and function

Which of the following is the primary absorptive process in the large intestine?

  1. Active transport of $Na^+$ from the lumen to the blood

  2. Absorption of amino acids and fructose

  3. Active transport of potassium from the lumen to the blood
  4. Active absorption of $HCO _3$ into the blood
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary function of the large intestine regarding absorption is the reabsorption of water and electrolytes, specifically the active transport of sodium ions from the lumen into the blood, which creates an osmotic gradient for water absorption.