The Digestive System Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what’s on both sides.
  • Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What are the three main nutrients in food?

Carbohydrates (e.g. starch), proteins, and lipids (fats).

Why must food molecules be broken down during digestion?

Food molecules are too large to be directly absorbed into the bloodstream, so they must be broken down into smaller molecules by enzymes.

What happens in the mouth during digestion?

Teeth break down food into smaller chunks (mastication), and salivary glands secrete enzymes that begin breaking down starch into sugar molecules.

What role does the stomach play in digestion?

The stomach contains protease enzymes for protein digestion and hydrochloric acid to kill bacteria and provide an optimal pH. It also mechanically digests food by churning it.

What is the function of the small intestine in digestion?

The small intestine absorbs nutrients into the bloodstream using villi and receives digestive chemicals from the liver (bile) and pancreas (enzymes).

How do useful bacteria in the digestive system aid digestion?

They control the growth of harmful bacteria, break down substances humans cannot digest, and produce important vitamins like vitamin B and vitamin K.

You’ve used 10 of your 10 free revision notes for the month

Sign up to get unlimited access to revision notes, quizzes, audio lessons and more

Sign up