What does heterotrophic nutrition include?

  • A
    Absorption and assimilation
  • B
    Ingestion and decomposition
  • C
    Absorption and ingestion
  • D
    Assimilation and ingestion

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Analogy type questions:
$(1)$ In saliva : Amylase :: In gastric juice : ......
$(2)$ $pH$ of gastric juice : $1.8$ :: $pH$ of saliva : .........

Which of the following is a protein-energy malnutrition related disorder?

Which of the following statements is incorrect regarding the human digestive system?

$A-$ About $30\%$ of starch is hydrolyzed by salivary amylase (optimum $pH\, 6.8$) in the buccal cavity.
$R-$ The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme.

Match the following columns regarding the absorption of substances in the human digestive system:
Column-$I$ Column-$II$
$(a)$ Small intestine $(1)$ Certain drugs
$(b)$ Stomach $(2)$ Water,some minerals,and drugs
$(c)$ Mouth $(3)$ Water,simple sugars,and alcohol
$(d)$ Large intestine $(4)$ Glucose,fructose,and amino acids

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