Tag: busy at work - our internal organs

Quizzes (25) Questions (283)

Questions Related to busy at work - our internal organs

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

The sigmoid colon is a part of :-

  1. large intestine

  2. small intestine

  3. pharynx

  4. rectum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The sigmoid colon is the part of the large intestine that is closest to the rectum and anus
  • It forms a loop that averages about 35-40 cm in length
  • The loop is typically shaped like a Greek letter sigma or Latin letter S
So, the correct answer is 'Large intestine'

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

The large intestine in humans

  1. is connected to the stomach

  2. absorbs water

  3. is the longest part of the intestinal tract

  4. digests all types of food
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
 The major function of the large intestine is to absorb water from the remaining indigestible food matter and remove the waste material from the body
So, the correct answer is 'Absorb water'
Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

The bacteria live in the large intestine of human are

  1. Bifidobacterium

  2. Methanogens

  3. Lactobacillus

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are many bacteria that live in the large intestine of human. They live in symbiotic association. These are Lactobacillus, Bifidobacterium, Methanogens, Bacteroids, Enterococcus, Escherichia coli. Lactobacillus help in digestion, maintaining the pH balance and replacing the healthy bacteria in the gastrointestinal tract. It acts as a probiotic. Bifidobacterium is also a probiotic. It helps in metabolism of undigested carbohydrates. It also prevents pathogen colonization. Methanogen helps in the fermentation of organic matter to obtain energy. They help in breakdown of complex indigestible carbohydrates. Bacteroids helps in amino acid biosynthesis. Enterococcus helps in digestion of undigested carbohydrates and fibres.

Thus, the correct answer is 'All of the above.'

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

Fermentation chamber of herbivores is

  1. Gall bladder

  2. Pancreas

  3. Liver

  4. Caecum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In herbivores, the caecum stores food material where bacteria are able to break down the cellulose. This function no longer occurs in the human caecum, so in humans it is simply a dead-end pouch forming a part of the large intestine.

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

The part of alimentary canal that absorbs maximum amount of water and minerals is 

  1. Small intestine

  2. Large intestine

  3. Stomach

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

The major function of the large intestine is to absorb water from the remaining indigestible food matter and transmit the useless waste material from the body.

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

Examination of large intestine for diseases is done by

  1. Colonoscopy

  2. Endoscopy

  3. MRI

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Colonoscopy is the endoscopic examination of the large intestine and the distal part of the small bowel with a CCD camera or a fibre optic camera on a flexible tube passed through the anus. It can provide a visual diagnosis and grants the opportunity for biopsy or removal of suspected colorectal cancer lesions. 

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

Apart from water what is secreted by the large intestine?

  1. K+

  2. Na+

  3. Cl-

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

The large intestine also secretes K+ and Cl-. Chloride secretion increases in cystic fibrosis. Recycling of various nutrients takes place in colon. Examples include fermentation of carbohydrates, short chain fatty acids and urea cycling. 

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

Goblet cells are abundant in

  1. Large intestine

  2. Small intestine

  3. Ileum

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

The wall of the large intestine is lined with simple columnar epithelium. Instead of having the evaginations of the small intestine (villi), the large intestine has invaginations (the intestinal glands). While both the small intestine and the large intestine have goblet cells, they are abundant in the large intestine. 

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which organ receives only oxygenated blood?

  1. Gill

  2. Spleen

  3. Lung

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

The splenic artery branches off from the aorta and the celiac trunk to deliver oxygenated blood to the spleen, while the splenic vein carries deoxygenated blood away from the spleen to the hepatic portal vein. 

Therefore, the correct answer is option B.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

What would happen if fangs of venomous snake are pulled out ? They will

  1. Get replaced

  2. Become double

  3. Be safe to handle

  4. Never get replaced
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In general teeth of reptiles (except crocodile) are acrodont. Thus, teeth are fixed over bone and not embedded in sockets in jaws. The fangs of snakes are modified maxillary teeth of upper jaw. If pulled out these teeth can be replaced.