Short Quiz

Question 1 of 5

NCERT Exemplar

In which part of the alimentary canal is food finally digested?

A Stomach B Mouth cavity C Large intestine D Small intestine

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Question 2 of 5

NCERT Exemplar

The correct sequence of anaerobic reactions in yeast is

A Glucose \(\xrightarrow{\text { cytoplasm }}\) Pyruvate \(\xrightarrow{\text { mitochondria }}\) Ethanol + Carbondioxide B Glucose cytoplasm Pyruvate \(\xrightarrow{\text { cytoplasm }}\) Lactic acid C Glucose \(\xrightarrow{\text { cytoplasm }}\) Pyruvate \(\xrightarrow{\text { mitochondria }}\) Lactic acid D Glucose \(\xrightarrow{\text { cytoplasm }}\) Pyruvate \(\xrightarrow{\text { cytoplasm }}\) Ethanol + Carbondioxide

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Question 3 of 5

NCERT Exemplar

The inner lining of the stomach is protected by one of the following from hydrochloric acid. Choose the correct one

A Pepsin B Mucus C Salivary amylase D Bile

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Question 4 of 5

NCERT Exemplar

Which is the correct sequence of air passage during inhalation?

A Nostrils → larynx → pharynx → trachea → lungs B Nasal passage → trachea → pharynx → larynx → alveoli C larynx → nostrils → pharynx → lungs D Nostrils → pharynx → larynx → trachea → alveoli

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Question 5 of 5

NCERT Exemplar

Which of the following statements about the autotrophs is incorrect?

A They synthesise carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll B They store carbohydrates in the form of starch C They convert carbon dioxide and water into carbohydrates in the absence of sunlight D They constitute the first trophic level in food chains

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