---
title: Identify the principal function of the red blood cells within the hu… — The human body deeper: the heart and b… · tree and pragmatics
description: Identify the principal function of the red blood cells within the human circulatory system. Exam question 1 of lesson 261 «The human body deeper: the heart and blood in amazing numbers» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of eac
---

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# Exam question 1 · The human body deeper: the heart and blood in amazing numb…

<!-- .ven lang=en -->
Identify the principal function of the red blood cells within the human circulatory system.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you · **What happens:** identify · **To what, where:** principal function

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This is exam question 1 of lesson 261 «The human body deeper: the heart and blood in amazing numbers» of the biology course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/261-human-body-deeper-heart-and-blood/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:261-human-body-deeper-heart-and-blood:e1:1
# text = Identify the principal function of the red blood cells within the human circulatory system.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	function	function	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	9	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
7	red	red	ADJ	JJ	Degree=Pos	9	amod	_	_
8	blood	blood	NOUN	NN	Number=Sing	9	compound	_	_
9	cells	cell	NOUN	NNS	Number=Plur	4	nmod	_	_
10	within	within	ADP	IN	_	14	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
12	human	human	ADJ	JJ	Degree=Pos	14	amod	_	_
13	circulatory	circulatory	ADJ	JJ	Degree=Pos	14	amod	_	_
14	system	system	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the principal function of the red blood cells |  |  |  | within the human circulatory system | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent function=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The formation of scabs upon wounds

```conllu
# sent_id = question:biology:261-human-body-deeper-heart-and-blood:e1:o1:1
# text = The formation of scabs upon wounds
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	formation	formation	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	scabs	scab	NOUN	NNS	Number=Plur	2	nmod	_	_
5	upon	upon	ADP	IN	_	6	case	_	_
6	wounds	wound	NOUN	NNS	Number=Plur	2	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
The destruction of invading micro-organisms

```conllu
# sent_id = question:biology:261-human-body-deeper-heart-and-blood:e1:o2:1
# text = The destruction of invading micro-organisms
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	destruction	destruction	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	SCONJ	IN	_	4	mark	_	_
4	invading	invade	VERB	VBG	VerbForm=Ger	2	acl	_	_
5	micro-organisms	micro-organism	NOUN	NNS	Number=Plur	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **invade** | gerund | the destruction *not said here* | micro-organisms |  |  |  |  | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
The production of the heart's audible sounds

```conllu
# sent_id = question:biology:261-human-body-deeper-heart-and-blood:e1:o3:1
# text = The production of the heart's audible sounds
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	production	production	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	8	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	heart	heart	NOUN	NN	Number=Sing	8	nmod:poss	_	SpaceAfter=No
6	's	's	PART	POS	_	5	case	_	_
7	audible	audible	ADJ	JJ	Degree=Pos	8	amod	_	_
8	sounds	sound	NOUN	NNS	Number=Plur	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **produce** |  |  | the heart's audible sounds |  |  |  |  | nom production «act transitive»: of=patient |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
The conveyance of oxygen to the tissues of the body

```conllu
# sent_id = question:biology:261-human-body-deeper-heart-and-blood:e1:o4:1
# text = The conveyance of oxygen to the tissues of the body
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	conveyance	conveyance	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	oxygen	oxygen	NOUN	NN	Number=Sing	2	nmod	_	_
5	to	to	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	tissues	tissue	NOUN	NNS	Number=Plur	2	nmod	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	body	body	NOUN	NN	Number=Sing	7	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **convey** |  |  | oxygen |  |  |  | to the tissues of the body | nom conveyance «communication transitive»: of=patient to=obl |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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