---
title: Identify the principal function of white blood cells within the huma… — Germs, the immune system and hand-wash… · tree and pragmatics
description: Identify the principal function of white blood cells within the human body. Exam question 1 of lesson 30 «Germs, the immune system and hand-washing» of the medicine course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Exam question 1 · Germs, the immune system and hand-washing

<!-- .ven lang=en -->
Identify the principal function of white blood cells within the human body.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you · **What happens:** identify · **To what, where:** principal function

<!-- .vabout -->
This is exam question 1 of lesson 30 «Germs, the immune system and hand-washing» of the medicine 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/medicine/30-germs-the-immune-system-and-hand-washing/#e1).

## The question {#question}

```conllu
# sent_id = question:medicine:30-germs-the-immune-system-and-hand-washing:e1:1
# text = Identify the principal function of white blood cells within the human body.
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	_	8	case	_	_
6	white	white	ADJ	JJ	Degree=Pos	8	amod	_	_
7	blood	blood	NOUN	NN	Number=Sing	8	compound	_	_
8	cells	cell	NOUN	NNS	Number=Plur	4	nmod	_	_
9	within	within	ADP	IN	_	12	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
11	human	human	ADJ	JJ	Degree=Pos	12	amod	_	_
12	body	body	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
13	.	.	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 white blood cells |  |  |  | within the human body | 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 bone

```conllu
# sent_id = question:medicine:30-germs-the-immune-system-and-hand-washing:e1:o1:1
# text = The formation of bone
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	bone	bone	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
The detection and destruction of pathogens

```conllu
# sent_id = question:medicine:30-germs-the-immune-system-and-hand-washing:e1:o2:1
# text = The detection and destruction of pathogens
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	detection	detection	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	4	cc	_	_
4	destruction	destruction	NOUN	NN	Number=Sing	2	conj	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	pathogens	pathogen	NOUN	NNS	Number=Plur	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **detect** |  |  | pathogens |  |  |  |  | nom detection «cognition transitive»: of=patient |

### Option 3 {#o3}

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

```conllu
# sent_id = question:medicine:30-germs-the-immune-system-and-hand-washing:e1:o3:1
# text = The transport of oxygen to the tissues of the body
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	transport	transport	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	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The digestion of food within the stomach

```conllu
# sent_id = question:medicine:30-germs-the-immune-system-and-hand-washing:e1:o4:1
# text = The digestion of food within the stomach
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	digestion	digestion	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	food	food	NOUN	NN	Number=Sing	2	nmod	_	_
5	within	within	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	stomach	stomach	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **digest** |  |  | food |  |  |  | within the stomach | nom digestion «process transitive»: of=patient within=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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- ← previous: [Germs, the immune system and hand-wash…, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/medicine/30-germs-the-immune-system-and-hand-washing/t11/)
- next →: [Germs, the immune system and hand-wash…, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/medicine/30-germs-the-immune-system-and-hand-washing/e2/)
- ↑ back to [Germs, the immune system and hand-washing](https://md.mova.elamur.ai/free/en/corpora/questions/medicine/30-germs-the-immune-system-and-hand-washing/)