Which of the following digestive juices has the minimum pH value?

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following teeth are lophodont?

  • Incisor and canine

  • Canine and premolar

  • Premolar and molar

  • Premolar and incisor


2.

The photorespiratory carbon-oxidation cycle involves the interaction of

  • chloroplast

  • mitochondria

  • peroxisomes

  • all of these


3.

Which of the following is related to glycosylation of protein?

  • Lysosome

  • Mitochondrium

  • Peroxisome

  • Rough endoplasmic reticulum


4.

A chromosome carrying the centromere at one of the ends is called

  • acentric

  • submetacentric

  • telocentric

  • metacentric


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5.

Glycolysis is found in cytoplasm of virtually all types of aerobic/ anaerobic cells. In this process glucose is converted into

  • PEP

  • acetyl CoA

  • pyruvic acid

  • citric acid


6.

Excretion in cockroach takes place by

  • nephridium

  • parotid gland

  • coxal glands

  • malpighian tubules


7.

Ambulacral grooves are absent in the living forms of the Class

  • Crinoidea

  • Asteroidea

  • Ophiuroidea

  • Echinodermata


8.

The ganglia of sympathetic and the central nervous system in frog develops from the

  • neural cell

  • neural plate cells

  • notochordal cells

  • neural crest cells


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9.

Which of the following digestive juices has the minimum pH value?

  • Bile

  • Gastric juice

  • Saliva

  • Pancreatic juice


B.

Gastric juice

Bile is an alkaline viscous fluid, yellow to green in colour and having a pH of 7.8- 8.6.

Saliva is secreted by salivary gland and its pH is about 6.8.

Gastric juice is secreted by the gastric gland in stomach and its pH value is 1- 2.5.

Pancreatic juice is colourless watery fluid and slightly alkaline. Its pH is 7.5-8.0.

Therefore, gastric juice has minimum pH value.


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10.

Bud dormancy is induced by

  • ABA

  • ethylene

  • IAA

  • gibberellic acid


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