Chapter 3: Digestive System - Science Mcqs for Grade 7 - Set 2

1)   The removal of waste products from a body is known as

a. egestion
b. ingestion
c. digestion
d. absorption
Answer  Explanation 

ANSWER: egestion

Explanation:
No explanation is available for this question!


2)   Proteins are converted into

a. amino acids
b. glucose
c. fats
d. fibers
Answer  Explanation 

ANSWER: amino acids

Explanation:
No explanation is available for this question!


3)   If we eat too much contaminated food, the stomach forces us to

a. vomit
b. digest
c. egest
d. exercise
Answer  Explanation 

ANSWER: vomit

Explanation:
No explanation is available for this question!


4)   Diarrhea takes place due to

a. biting by mosquitoes
b. eating contaminated food
c. using infected syringes
d. cold
Answer  Explanation 

ANSWER: eating contaminated food

Explanation:
No explanation is available for this question!


5)   The process of absorption of food molecules from digestive track by the blood vessels is called

a. absorption
b. assimilation
c. digestion
d. ingestion
Answer  Explanation 

ANSWER: absorption

Explanation:
No explanation is available for this question!


6)   The large molecules in the food that we eat are

a. carbohydrates and fats
b. fats and proteins
c. carbohydrates, fats and proteins
d. carbohydrates and proteins
Answer  Explanation 

ANSWER: carbohydrates, fats and proteins

Explanation:
No explanation is available for this question!


7)   The acid in the stomach provides

a. acidic medium for enzymes
b. space for more food
c. alkaline medium for enzymes
d. nutrients to food
Answer  Explanation 

ANSWER: acidic medium for enzymes

Explanation:
No explanation is available for this question!


8)   Conversion of starch into glucose and other simple sugars is generally known as

a. amylase
b. maltase
c. carbohydrate
d. lipase
Answer  Explanation 

ANSWER: carbohydrate

Explanation:
No explanation is available for this question!


9)   To enter the blood vessels, large molecules are

a. burned
b. digested
c. ingested
d. absorbed
Answer  Explanation 

ANSWER: digested

Explanation:
No explanation is available for this question!


10)   Amino acids are basically used for

a. respiration
b. photosynthesis
c. growth and repair
d. digestion
Answer  Explanation 

ANSWER: growth and repair

Explanation:
No explanation is available for this question!