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प्रश्न
Why do we call saliva a digestive juice?
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उत्तर
Saliva is the juice secreted by the salivary glands. Saliva helps to make bolus from the food that we eat. Saliva also contains a starch digesting enzyme. This enzyme turns starch into sugar. Therefore, saliva is called a digestive juice.
संबंधित प्रश्न
Describe, in brief, the circulatory system in human beings.
Given below is a highly schematic diagram of the human blood circulatory system.
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- Which part (state the number) represents the heart? Give reason in support of your answer.
- Which numbers represent the following, respectively?
Aorta Superior vena cava Hepatic portal vein Renal Vein Pulmonary artery Stomach
True or false:
The four blood groups in human beings are A, B, AB and AO
True or false:
Impure blood is received by the right auricle.
How many litres of blood does an adult human body have?
Why is circulatory system also known as transport system?
Differentiate between:
Red blood cells and White blood cells
State the Location: Spleen
______ WBCs are present per mm3 of blood.
Name these:
Three circulating fluids in human body.
