Tag: digestion of food

Questions Related to digestion of food

As one moves up an ecological pyramid, in general ________________.

evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

  1. The biomass increases

  2. Photosynthesis increases

  3. Energy levels decreases

  4. Productivity increases

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Correct Option: A

Which one of the following is not used for construction of ecological pyramids?

evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

  1. Number of individuals

  2. Rate of energy flow

  3. Fresh weight

  4. Dry weight

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Correct Option: C
Explanation:

Fresh weight of organisms and their body parts comprises of water content along with the actual dry weight. The fresh weight is deviating w.r.t metabolism and availability in the same organism or different organisms taken under observation. This makes the standard comparison difficult. Hence, fresh weight is not used for the construction of the ecological pyramid.

So, the correct option is 'Fresh weight'.

The pyramid of energy in terrestrial ecosystem is

evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

  1. Upright

  2. Inverted

  3. Spindle shaped

  4. Irregular

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Correct Option: A

An example of one way ecological cycle is

evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

  1. carbon dioxide cycle

  2. water cycle

  3. energy cycle

  4. oxygen cycle

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Correct Option: C

Maintaining ecological balance in future will mainly depend on :

evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

  1. nature's own process of changes and interaction

  2. adaptation of all living species to changes in climate

  3. man's caution and ability to allow nature's own balance to continue

  4. man's ability to maintain and develop species according to his needs.

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Correct Option: C

Find the odd out and state category of rest ;

evs digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

  1. Thymine, Cytosine, Adenine, Pepsin

  2. Cortisone , Somatotropin, Adrenocorticotropic hormone, Vasopressin

  3. Cerebrum, Cerebellum, Thalamus, Hypothalamus

  4. Urea, Creatinine, Ammonia, Uric acid

  5. Neutrophils, Eosinophils, Basophils, Lymphocytes

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Correct Option: A
Explanation:

(A)Pepsin is not a nitrogenous base.

(B)Cortisone, Somatotropin, Adrenocorticotropic, Vasopressin are all hormones.
(C)Cerebrum, Cerebellum, Thalamus, Hypothalamus are all parts of the brain.
(D)Urea, Creatinine, Ammonium, Uric acid are all nitrogen-based products.
(E)Neutrophils, Eosinophils, Basophils, Lymphocytes are all compounds of blood cells.
Thus, the correct answer is 'Thymine, Cytosine, Adenine, Pepsin.'

The undigested, semisolid food is called 

evs digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

  1. Anus

  2. Faeces

  3. Rectum

  4. Villi

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Correct Option: B
Explanation:
  • The human digestive system consists of a long muscular tube and several accessory organs such as the salivary glands, pancreas and gall bladder.
  •  It is responsible for food ingestion and digestion, absorption of digestion products and the elimination of undigested materials. 
  • Undigested semi-solid food remaining in the large intestine is called faeces which are eliminated through the anus.
Hence, The undigested, semisolid food is called faeces.
So, the correct answer is 'faeces'.

The longest part of the alimentary canal is 

evs digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

  1. Oesophagus

  2. Large intestine

  3. Small intestine

  4. Stomach

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Correct Option: C
Explanation:

  • The alimentary canal includes the mouth, pharynx, oesophagus, stomach, small intestine, large intestine, and anus.
  • The longest part of the alimentary canal is small intestine because it is the main organ of absorption and digestion of food. 
  • The surface area of the small intestine gets increased because of the presence of villi which gives food plenty of time to break down properly. Hence, the longest part of the alimentary canal is a small intestine.  
So, the correct answer is 'Small intestine'.

Stomach secretes

evs digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

  1. Dilute hydrochloric acid

  2. Dilute sulphuric acid

  3. Dilute citric acid

  4. Dilute nitric acid

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Correct Option: A
Explanation:
  • Parietal cells in the stomach contain an extensive secretory network from which the dilute hydrochloric acid is secreted into the lumen of the stomach.
  •  This dilute Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis. Hence, Stomach secretes Dilute hydrochloric acid'
So, the correct answer is 'Dilute hydrochloric acid'.

Bile is secreted by 

evs digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

  1. Stomach

  2. Small intestine

  3. Pancreas

  4. Liver

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Correct Option: D
Explanation:

  • Bile  is a dark green to yellowish brown fluid, produced by the liver of most vertebrates, that helps in the digestion of lipids in the small intestine.
  •  In humans, bile is produced continuously by the liver, and stored and concentrated in the gallbladder. Hence, Bile is secreted by the liver.
So, the correct answer is 'liver'.