Which of the following is incorrect about tongue?

  • Freely movable

  • Muscular organ

  • Frenulum is the mean for attachment to the palate of oral cavity

  • Presence of papillae at upper surface.

Assertion      :       Adult human being is not perfect in digestion of milk.

Reason         :       With age, man produces little or no lactase in the intestinal juice.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion  :       Trypsin helps in blood digestion of predator aimals.

Reason     :     Trypsin hydrolyses fibrinogen.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion      :       Volume and fluidity of intestinal contents have increased in a person.


Reason         :       The person drank sea water.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion      :       Sea-faring fishermen suffer from paralysis.


Reason         :       They can be deficient of Vitamin B1.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion      :       Starch is hydrolysed by ptyalin to maltose.

Reason         :       Sucrose hydrolyses sucrose to lactose.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion      :       Cold blooded animals have no fat layer.


Reason         :       Cold blooded animals use their fat for metabolic process during hibernation.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion :       In alcoholic drink, the alcohol is converted into glucose in the liver.           

Reason    :       Liver cells are able to produce glucose from alcohol by back fermentation.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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  • 3
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Assertion  :     The main part of carbohydrate digestion takes place in small intestine.

Reason    :      Here pancreatic amylase converts carbohydrates into lactose.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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  • 2
  • 3
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Assertion      :       Scurvy is caused by deficiency of vitamin.

Reason         :       Deficiency of ascorbic acid causes scurvy.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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What does food provide?

  • . Energy
  • . Organic material
  • . Heat
  • . More than one option is correct

Which of the following is required in small quantities?

  • Vitamins

  • Glucose

  • amino acids

  • Fatty acids

Which of the following plays an important role in all metabolic processes not being a major substrate?

  • Water

  • Amino acids

  • Glycerol

  • Glucose

Which of the following statements are not wrong?

  • Biomicromolecules in food cannot be utilized by our body in their original form.

  • Vitamins are one of the major components of our body.

  • The process of conversion of simple food substances to absorbable forms is known as digestion.

  • Digestion is carried by mechanical and biochemical methods of digestive system.

Which of the following is not a part of human digestive system?

  • Alimentary canal

  • All glands

  • Compound stomach

  • More than one option is correct

Find out the correct statement with respect to digestive system.

  • Tooth is embedded in socket of jaw bones in humans .

  • All mammals are diphyodont.

  • All humans have four types of dentition.

  • There will be 6 molars in an adult human in upper half of mouth.

If I consider half part of upper jaw and diagonal half part of lower jaw, then how many, incisors will be present?

  • 4

  • 8

  • 6

  • 12

If I consider half part of upper jaw and diagonal half part of lower jaw, then how many, canines will be present?

  • 2

  • 4

  • 8

  • 6

If I consider half part of upper jaw and diagonal half part of lower jaw, then how many, molars will be present in an adult man?

  • 6

  • 12 

  • 3

  • 4

Which of the following is correct with respect to taste buds?

  • Present on all papillae

  • They may be found on lower surface of tongue

  • Location is pharynx

  • Some projections of tongue has taste buds.

Find the wrong statement out with respect to oesophagus.

  • Thin, long tube

  • Extends posteriorly

  • Passes through diaphragm

  • opens into thorax

Which of the following is correct with respect to stomach?

  • Upper left portion of thoracic cavity is location

  • Has only three major parts: Cardiac, fundic and pyloric

  • The main central region is cardiac.

  • Pyloric opens into first part of small intestine.

Jejunum is not

  • Long

  • Coiled

  • Middle part

  • C shaped

Pyloric sphinctor is not associated with

  • Stomach

  • Duodenum

  • Intestine

  • Oesohagus

Find the unsuitable match for Fundic.

  • Followed by main central region

  • Anterior most part of the stomach

  • Upper left portion of abdominal cavity

  • Anterior to pyloric

Caecum cannot be

  • Small blind sac

  • Hosts symbiotic microorganisms

  • Has a vestigial organ

  • Opens into sigmoid colon

Colon has

  • Descending part which opens into rectum

  • Ascending part which opens into rectum

  • Transverse part which opens into rectum

  • Three parts

Which of the following is not correct with respect to histology of alimentary canal?

  • There will be four layers from oesohagus to large intestine and rest all parts have absence of one or other layer.

  • The order of layer from inside to outside: Mucosa- Submucosa-Muscularis-Serosa.

  • Serosa is made up of epithelium of visceral organs known as mesothelium

  • Mesothelium has some amount of connective tissue.

Submucosa - what does not hold true?

  • Loose connective tissue

  • Nerves, blood and lymph vessels

  • Stomach has submucosal glands

  • It is 2nd layer from inside to outside.

Mucosa- what does not hold true?

  • Lines the lumen of alimentary canal

  • Rugae in stomach

  • Villi in small intestine

  • Villi give brush border appearance in intestine

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Practice Zoology Quiz Questions and Answers