Q1. Fill in the blanks.
The main steps of nutrition in humans are ingestion,
The largest gland in the human body is liver.
The stomach releases hydrochloric acid and digestive
juices which act on food.
The inner wall of the small intestine has
many finger-like outgrowths called villi.
Amoeba digests its food in the food vacuole.
We chew the food with the teeth and
break it down mechanically into small pieces.
Digestion of starch starts in the stomach. False
The tongue helps in mixing food with
The gall bladder temporarily stores bile. True
The ruminants bring back swallowed grass
into their mouth and chew it for some time. True
We chew the food with the teeth and break
it down mechanically into small pieces. True
Large intestine receives digested and
absorbed food. False
Q3. What is the organ that stores bile?
Q4. Which part of the digestive canal is involved in killing
Q5. Name the part of digestive canal involved in chewing of
Q6. Where are fats digested in the body?
Fats are mainly digested in the small intestine.
Q7. Where is the water from undigested food absorbed in the body?
Water from undigested food is absorbed in the body in large intestine.
Q8. What kills bacteria that enter along with the juices to act?
acid kills many bacteria that enter along with the juices to act.
Q9. Where food is completely digested?
The food is completely digested in the small intestine.
Q10. Where are faeces formed in the human body?
Faeces are formed in the human body in large intestine.
Q11. Which glands secrete saliva?
Salivary glands secrete saliva.
Q12. Where food is absorbed in our body?
of food takes place in small intestine.
Q13. Which gland in our body secretes bile?
Bile is a digestive juice that is secreted by the liver.
Q14. Where faeces are stored?
Faeces are stored in rectum.
Q15. What are the end products of carbohydrate?
The carbohydrates get broken into simple sugars such as glucose.
Q16. Name the end products of fats.
acids and Glycerol
Q17. Write the end products of proteins.
Q18. What causes diarrhoea in human beings?
It may be caused by an infection, food poisoning or indigestion.
Q19. Which is the largest gland in the human body?
is the largest gland in human body.
Q20. What is ingestion?
The process of taking food into the body is called ingestion.
Q21. What are the different types of teeth?
have different types of teeth: incisor, canine, premolar and molar.
Q22. What does saliva do to food in our mouth?
saliva breaks down the starch into sugars.