Mammalian Digestive System (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key characteristic of heterotrophs?
What is the key characteristic of heterotrophs?
They obtain nutrients from external sources
Why is mechanical digestion important for chemical digestion?
Why is mechanical digestion important for chemical digestion?
It increases surface area for enzymes
What does salivary amylase break down in the mouth?
What does salivary amylase break down in the mouth?
Starch into maltose
Why is pepsinogen produced in inactive form rather than as active pepsin?
Why is pepsinogen produced in inactive form rather than as active pepsin?
It prevents cells from self-digestion
What is the pH range of gastric juices in the stomach?
What is the pH range of gastric juices in the stomach?
to
What is the function of bile in fat digestion?
What is the function of bile in fat digestion?
Emulsifies fats into smaller droplets
What are the three regions of the small intestine in order?
What are the three regions of the small intestine in order?
Duodenum, jejunum, ileum
Where are fatty acids and glycerol absorbed in the villi?
Where are fatty acids and glycerol absorbed in the villi?
Into the lacteal (lymph system)
What is the main function of the colon in the large intestine?
What is the main function of the colon in the large intestine?
Reabsorbs water and mineral salts
Why can't the body store excess proteins?
Why can't the body store excess proteins?
No storage mechanism exists for them