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- 1. Multiple Choice
The breakdown of complex components of food into simpler substances is called_____________________________
Digestion
Nutrition
Breathing
Respiration
- 2. Multiple Choice
The set of teeth that exists in the mouth during the period from six to eight years of a human being are called
Permanent teeth
Premolar teeth
Molar teeth
Milk teeth
- 3. Multiple Choice
Single celled organism among the following is ____________
Human being
Plant
Cow
Amoeba
- 4. Fill in the Blank
The inner walls of the small intestine have millions of small finger like projections called ___________
- 5. Fill in the Blank
Bile juice is stored in ____________________
- 6. Multiple Choice
The pointed / having Sharp edge teeth in mouth are called ____________
incisors
canines
premolars
molars
- 7. Fill in the Blank
An amoeba ingests food with the help of _________________
- 8. Multiple Choice
The walls of large intestine absorb _________________
water
proteins
cellulose
roughage
- 9. Multiple Choice
Which of the following do not have teeth ____________
rats
birds
snakes
elephants
- 10. Multiple Choice
In which part of the human digestive system, digestion doesn't take place.
Mouth
Stomach
Oesophagus
Small Intestine
- 11. Fill in the Blank
The organ where digestion is completed ___________
- 12. Multiple Choice
Which of the following pair of teeth differ in structure but are similar in function?
canines and incisors.
molars and premolars.
incisors and molars.
premolars and canines.
- 13. Multiple Choice
The acid present in the stomach
kills the harmful bacteria that may enter along with the food.
protects the stomach lining from harmful substances.
digests starch into simpler sugars.
makes the medium alkaline. makes the medium alkaline.
- 14. Multiple Choice
Choose the correct order of terms that describes the process of nutrition in ruminants.
chewing of cud → swallowing → partial digestion → complete digestion
chewing of cud → swallowing → mixing with digestive juices → digestion
swallowing → partial digestion → chewing of cud → complete digestion
swallowing → chewing and mixing → partial digestion → complete digestion
- 15. Fill in the Blank
Saliva is secreted in the mouth by _______________
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