---
title: Digestion: from mouth to intestines — how Mova does on the tests · World
description: Lesson 33 of the world course of Mova's primary school: 7 of 12 tests right, exam 2 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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# Digestion: from mouth to intestines

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**Tests:** 7 of 12 right · **Exam:** 2 of 4 right · **Kind:** plain · **Understood:** 9 of 16 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 33 of the world course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: [the lesson in the corpora](https://md.mova.elamur.ai/free/en/corpora/school/world/33-digestion/).

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Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/).

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### Test 1 · right ✓ {#t1}

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An astronaut eats in space where there is almost no up or down. Can the food still reach the stomach?

- **1.** No, food needs gravity to fall down — no support
- **2.** Yes, muscles in the food pipe squeeze it along — **← Mova's choice** · **✓ the right answer** · score 6
- **3.** Only if the food is liquid — no support
- **4.** Only if the astronaut stands up — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 33, line 18: «Food passes along the food pipe and intestines because muscles in their walls squeeze it along.», reached through a sentence linked to the one the question matched. What matched: the same action «squeeze» (+3); the same doer «muscles» (+2); the same property (+2). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t1/)

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### Test 2 · wrong ✗ {#t2}

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Hold a piece of bread in your mouth for a long time and it starts to taste a little sweet. Why?

- **1.** The teeth squeeze sugar out of it — **← Mova's choice** · no support
- **2.** The tongue adds sugar to it — no support
- **3.** Saliva breaks starch into sugar — **✓ the right answer** · no support
- **4.** The bread goes stale — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t2/)

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### Test 3 · wrong ✗ {#t3}

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Which is true?

- **1.** The stomach is where most of the water is taken back into the body — **← Mova's choice** · no support
- **2.** Food passes into the blood mostly in the mouth — no support
- **3.** Food passes into the blood mostly in the small intestine — **✓ the right answer** · no support
- **4.** The large intestine is where we chew — no support

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**Why:** Nothing it remembers matched the question, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t3/)

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### Test 4 · right ✓ {#t4}

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Someone eats very little fruit, vegetables or whole grains. What problem may they get?

- **1.** Food moves slowly and they get constipated — **← Mova's choice** · **✓ the right answer** · score 3
- **2.** Their bones grow too long — no support
- **3.** Their lungs fill with water — no support
- **4.** They breathe too fast — no support

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**Why:** It took the question to ask what it is done to. It chose option 1 with score 3, the only option with support. Its support: lesson 23, line 15: «Some seeds pass through animals that eat the fruit and are dropped far away.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same thing acted on «fruit» (+2). Against it: a different action (counts against) (-1); a different doer (counts against) (-2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t4/)

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### Test 5 · wrong ✗ {#t5}

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If the large intestine did not work, what would the body lose?

- **1.** All its saliva — **← Mova's choice** · no support
- **2.** All its oxygen — no support
- **3.** Its sense of taste — no support
- **4.** A lot of water — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t5/)

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### Test 6 · wrong ✗ {#t6}

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Which part of digestion happens before swallowing?

- **1.** Taking back water from waste in the gut — no support
- **2.** Chewing and wetting food with saliva — **✓ the right answer** · no support
- **3.** Churning the food with acid and juices — **← Mova's choice** · score 7
- **4.** Passing the food into the blood vessels — score 6

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 7, against 6 for the next best. Its support: lesson 33, line 3: «When you swallow, the food goes down a tube called the oesophagus (food pipe) into the stomach, where strong acid and juices churn it into a thick soup.», reached through the same lesson line as the sentence the question matched. What matched: the same action «churn» (+4); the same thing acted on «food» (+2); the same circumstance (+2). Against it: a different doer (counts against) (-1). The right option, 2, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t6/)

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### Test 7 · right ✓ {#t7}

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Why must food be broken into tiny pieces before the body can use it?

- **1.** Only tiny pieces can pass into the blood — **← Mova's choice** · **✓ the right answer** · score 8
- **2.** Tiny pieces taste better — no support
- **3.** Big pieces make the heart stop — no support
- **4.** Big pieces are too heavy to swallow — no support

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**Why:** It took the question to ask why something happens (its cause). It chose option 1 with score 8, the only option with support. Its support: lesson 33, line 7: «Digestion breaks food into pieces small enough to pass into the blood.», reached through the cause of the sentence the question matched. What matched: the same place «blood» (+5); the same action «pass» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t7/)

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### Test 8 · right ✓ {#t8}

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A doctor talks about the organ that makes bile. Which organ is it?

- **1.** The heart — no support
- **2.** The brain — no support
- **3.** The liver — **← Mova's choice** · **✓ the right answer** · score 7
- **4.** The lungs — no support

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**Why:** It took the question to ask who or what does it. It chose option 3 with score 7, the only option with support. Its support: lesson 33, line 17: «The liver makes bile, which helps to digest fat.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «liver» (+3). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t8/)

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### Test 9 · wrong ✗ {#t9}

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so where does my sandwich actually go into my blood

- **1.** Through the lungs when we breathe — **← Mova's choice** · no support
- **2.** Through the walls of the stomach only — no support
- **3.** Straight from the mouth into the blood — no support
- **4.** Mostly through the walls of the small intestine — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t9/)

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### Test 10 · right ✓ {#t10}

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how come food goes down even if u eat upside down lol

- **1.** Muscles in the food pipe squeeze it along — **← Mova's choice** · **✓ the right answer** · score 2
- **2.** The stomach sucks it down like a straw — no support
- **3.** Gravity still pulls it down to the stomach — no support
- **4.** Saliva makes it slide on its own — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 2, the only option with support. Its support: lesson 33, line 18: «Food passes along the food pipe and intestines because muscles in their walls squeeze it along.», reached through the option's own match among the sentences about the question's things. What matched: the same action «squeeze» (+1); the same doer «muscles» (+1); the same property (+1). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t10/)

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### Test 11 · right ✓ {#t11}

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my bro says digestion starts in the stomach. true?

- **1.** No, it starts in the mouth with chewing and saliva — **← Mova's choice** · **✓ the right answer** · score 14
- **2.** No, it starts in the small intestine after the stomach — score 6
- **3.** Yes, the mouth only tastes the food — no support
- **4.** Yes, nothing happens until the stomach — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 14, against 6 for the next best. Its support: lesson 33, line 8: «Digestion starts in the mouth with chewing and saliva.», reached through the remembered sentence the question matched. What matched: the same action «start» (+4); the same place «mouth» (+4); the same circumstance (+4); the same doer «digestion» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t11/)

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### Test 12 · right ✓ {#t12}

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Sam reckons fibre is useless cos we can't digest it. right?

- **1.** Yes, fibre only makes food heavier — no support
- **2.** No, fibre gives us most of our energy — no support
- **3.** Yes, fibre does nothing in the body — no support
- **4.** No, fibre helps food move through the intestines — **← Mova's choice** · **✓ the right answer** · score 10

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**Why:** It took the question to ask which statement is true. It chose option 4 with score 10, the only option with support. Its support: lesson 33, line 15: «Fibre from fruit, vegetables and whole grains helps food move through the intestines.», reached through the remembered sentence the question matched. What matched: the same action «move» (+4); the same place «intestines» (+4); the same doer «fibre» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/t12/)

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### Exam question 1 · formal language · right ✓ {#e1}

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Identify the location at which digestion commences.

- **1.** The mouth — **← Mova's choice** · **✓ the right answer** · no support
- **2.** The stomach — no support
- **3.** The small intestine — no support
- **4.** The large intestine — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/e1/)

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### Exam question 2 · formal language · right ✓ {#e2}

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Identify the organ in which the greater part of digested food passes into the blood.

- **1.** The stomach — no support
- **2.** The large intestine — no support
- **3.** The small intestine — **← Mova's choice** · **✓ the right answer** · score 6
- **4.** The oesophagus — no support

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 33, line 12: «Most digested food passes into the blood in the small intestine.», reached through the remembered sentence the question matched. What matched: the same circumstance (+4); the same property (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/e2/)

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### Exam question 3 · formal language · wrong ✗ {#e3}

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State the principal function of the large intestine.

- **1.** The mixing of food with acid — **← Mova's choice** · no support
- **2.** The recovery of water from what remains — **✓ the right answer** · no support
- **3.** The digestion of starch — no support
- **4.** The production of bile — no support

<!-- .why -->
**Why:** Nothing it remembers matched the question, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/e3/)

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### Exam question 4 · formal language · wrong ✗ {#e4}

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Select the response that is consistent with the established facts concerning the movement of food through the alimentary canal (the food pipe, stomach and intestines).

- **1.** It descends by the force of gravity alone, like a stone in a well — **← Mova's choice** · no support
- **2.** It is propelled by the squeezing of muscles in the walls — **✓ the right answer** · no support
- **3.** It is carried by a current of air — no support
- **4.** It is drawn along by the heart — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/33-digestion/e4/)

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- ← previous: [32. The heart, blood and breathing](https://md.mova.elamur.ai/free/en/school-run/world/32-heart-blood-breathing/)
- next →: [34. The brain, nerves and the five senses](https://md.mova.elamur.ai/free/en/school-run/world/34-brain-nerves-senses/)
- ↑ back to [World](https://md.mova.elamur.ai/free/en/school-run/world/)