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Science
7th
grade
Digestive System - Mechanical & Chemical Digestion
25 questions
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- 1. Multiple ChoiceThe chewing and grinding of food into smaller pieces is an example of...Mechanical DigestionChemical Digestion
- 2. Multiple ChoiceNutrients from digested food are absorbed in which digestive organ?Small IntestineStomachLarge IntestineGallbladder
- 3. Multiple ChoiceGastric juices in the stomach digest food into a thick liquid. This is...Mechanical digestionChemical digestion
- 4. Multiple ChoiceEnzymes (chemicals) in your saliva help break down food while chewing. This is...Mechanical digestionChemical digestion
- 5. Multiple ChoiceThe liquid inside the mouth that contains enzymes to begin digestion is called ____________.salivasalivary glandsbile
- 6. Multiple ChoiceThe major function of having enzymes in our digestive system is ______________.to eliminate undigested foodto absorb water in the intestineto speed up chemical reactions during digestion
- 7. Multiple ChoiceThe process with muscle contractions to move food through the digestive system is called ____________________.peristalsispancreassaliva
- 8. Multiple Choice
_________________ is when the body breaks down food into small units of nutrients that can be absorbed and used for energy.
digestion
enzyme
peristalsis
- 9. Multiple Choice
Which of the sequences best describes how a piece of chicken nugget is digested in the human body?
mouth, esophagus, small intestine, large intestine, stomach
mouth, stomach, small intestine, large intestine, esophagus
mouth, esophagus, stomach, small intestine, large intestine
- 10. Multiple ChoiceWhat is the function of the digestive system?To break down foodTo cool you downTo help you breatheTo pump blood through your body
- 11. Multiple ChoiceThe crushing and mashing of food is what type of digestion?ChemicalMechanical
- 12. Multiple ChoiceWhat organ is responsible for absorbing nutrients from food?Large IntestineStomachSmall IntestineRectum
- 13. Multiple ChoiceWhy do we eat food?To get nutrients and energyTo get fullTo make wasteTo gain weight
- 14. Multiple ChoiceWhere does digestion begin?MouthStomachSmall IntestineLarge Intestine
- 15. Multiple Choice
How does the cardiovascular system and digestive system work together to deliver nutrients to your body's cells?
The digestive system absorbs the nutrients into the blood stream and the cardiovascular system transports the nutrients to the body's cells.
The cardiovascular system absorbs the nutrients into the blood stream and the digestive system transports the nutrients to the body's cells.
- 16. Multiple Choice
Where does the digestive system begin?
Mouth
Esophagus
Stomach
Small Intestine
- 17. Multiple Choice
The muscles of the stomach mix and churn food you eat.
True
False
- 18. Multiple ChoiceWhich of the following is chemical digestion?Teeth crushing foodSaliva dissolving foodSmooth muscle churning the food
- 19. Multiple ChoiceWhat is the function of the villi?Digests fatDigests proteinAbsorbs nutrientsAbsorbs water
- 20. Multiple ChoiceWhat is an example of chemical breakdown?ChewingSalivaPeristalsis
- 21. Multiple ChoiceWhat starts the process of chemical breakdown?SalivaOxygenHydrogen
- 22. Multiple ChoiceWhat churns food and breaks it down further using strong acids?StomachSalivary glandsLiver
- 23. Multiple ChoiceThis is where food is reduced to a liquid form.large intestinesmall intestinestomachrectum
- 24. Multiple Choice
Type of digestion in the stomach:
Mechanical
Chemical
Both
- 25. Multiple ChoiceWhat body system does the digestive system work with to take nutrients to your cells?Circulatory system.Respiratory system.Skeletal system.Nervous system.
- Answer choicesTagsAnswer choicesTags