Tag: digestive system of human

Quizzes (24) Questions (225)

Questions Related to digestive system of human

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Caecum is large for digestion of cellulose with the help of symbiotic bacteria in

  1. Man

  2. Rabbit

  3. Cat

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

Rabbits are hindgut fermenters that rely on a large, specialized caecum to house symbiotic bacteria for the breakdown of cellulose. Humans, cats, and frogs do not utilize the caecum for this purpose.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Part of alimentary canal meant for reabsorption of water from chyle is

  1. Small intestine

  2. Colon

  3. Large intestine

  4. Rectum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The large intestine, specifically the colon, is the primary site for the reabsorption of water and electrolytes from the remaining chyle. This process helps in the formation of solid faeces.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Nonpathogenic bacterium present in large intestine is

  1. Staphylococcus aureus

  2. Escherichia coli

  3. Helicobacter pylori

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

Escherichia coli is a well-known nonpathogenic bacterium that resides in the human large intestine as part of the normal gut flora. It aids in vitamin synthesis and prevents the colonization of harmful bacteria.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Some symbiotic microorganisms occur in human body in

  1. Vermiform appendix and rectum

  2. Caecum

  3. Duodenum

  4. Oral lining and tongue surface
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The human caecum houses a population of symbiotic microorganisms that contribute to gut health. While the human caecum is reduced compared to herbivores, it still serves as a reservoir for these bacteria.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Back flow of faecal matter from large intestine is prevented by

  1. Epiglottis

  2. Sphincter of Oddi

  3. Ileocaecal valve

  4. Gastro-oesophageal sphincter
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ileocaecal valve is a sphincter muscle located at the junction of the small intestine (ileum) and the large intestine (caecum). It prevents the backflow of faecal material into the small intestine.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Argentaffin cells occur in

  1. Large intestine

  2. Stomach

  3. Small intestine

  4. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Argentaffin cells (also known as enterochromaffin cells) are specialized endocrine cells found throughout the gastrointestinal tract, including the stomach, small intestine, and large intestine. Given the options, the large intestine is a correct site, though they are present in other areas too.

Multiple choice bio-chemistry digestive system of human role of intestine digestion in intestine digestive system - organs

Read the following statements and select the correct option.


Statement 1 : The worm-like structure attached to the caecum at the beginning of the large intestine is known as vermiform appendix.
Statement 2 : Vermiform appendix has no apparent digestive function. 

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statements 1 and 2 are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement 1 accurately describes the anatomical location and appearance of the vermiform appendix. Statement 2 is also correct, as the appendix is considered a vestigial organ with no significant digestive function in humans.

Multiple choice biology digestive system of human assimilation of food and egestion assimilation of food components and importance of food

Which of the following statement is INCORRECT in case of defaecation in the human body?

  1. Defaecation involves both voluntary and involuntary process

  2. Voluntary contractions of abdominal muscles and diaphragm aid in defaecation

  3. Decrease in intra abdominal pressure aids in the process of defaecation

  4. Distention of rectal wall induces defaecation reflex
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Defaecation is the process in which removal of fecal matter outside the body. It involves:-

1)Both voluntary and involuntary process the signal provided can be controlled by the person.
2)Voluntary contractions of abdominal muscles and diaphragm aid in defaecation.
3)Increase in intra abdominal pressure aids in the process of defaecation.
4)Distention of rectal wall induces defaecation reflex.
So the correct option is 'Decrease in intra abdominal pressure aids in the process of defaecation'.