{
"question_text": "In an experiment, a cell is exposed to a solution containing a variety of molecules. Only small, nonpolar molecules are able to cross the membrane freely. This observation is best explained by which feature of the cell membrane?",
"question_type": "direct",
"options": {
"a": "The cholesterol molecules that increase membrane rigidity",
"b": "The hydrophilic heads that attract water molecules",
"c": "The hydrophobic interior of the lipid bilayer",
"d": "The glycoproteins that recognize specific molecules",
"e": "The integral proteins that form membrane channels"
},
"correct_answer": "c",
"explanation": "The correct answer is c because the hydrophobic core of the lipid bilayer is impermeable to polar and charged molecules, allowing only small nonpolar molecules to diffuse freely. The other options describe features that do not directly explain the selective permeability for nonpolar molecules: cholesterol modulates fluidity but does not create the barrier; hydrophilic heads are on the surface and do not impede passage; glycoproteins are involved in cell recognition; integral proteins form channels but are not required for nonpolar diffusion. 📖 Kaynak: https://en.wikipedia.org/wiki/Cell_membrane",
"source": "Web: Wikipedia",
"difficulty": "medium",
"tags": [
"cell membrane",
"lipid bilayer",
"selective permeability",
"biology"
],
"quality_check": {
"issues": [
{
"criterion": "ANSWER_HIDDEN",
"passed": true,
"note": "The correct answer is not revealed in the question text or options."
},
{
"criterion": "HAS_QUESTION_SENTENCE",
"passed": true,
"note": "The question ends with a clear interrogative sentence."
},
{
"criterion": "BALANCED_OPTIONS",
"passed": true,
"note": "All options are of similar length and plausibility."
},
{
"criterion": "NO_OBVIOUS_CORRECT",
"passed": true,
"note": "The correct answer is not immediately obvious without knowledge of the topic."
},
{
"criterion": "REAL_DISTRACTORS",
"passed": true,
"note": "All distractors are real features of the cell membrane."
},
{
"criterion": "NO_ABSURD_OPTIONS",
"passed": true,
"note": "No option is absurd or nonsensical."
},
{
"criterion": "PARENTHESIS_BALANCED",
"passed": true,
"note": "No parentheses in the question or options."
},
{
"criterion": "HAS_SOURCE",
"passed": true,
"note": "Source is provided as 'Web: Wikipedia'."
},
{
"criterion": "CORRECT_EXPLANATION_MATCH",
"passed": true,
"note": "Explanation correctly identifies option c and provides a valid reason."
},
{
"criterion": "SINGLE_CORRECT",
"passed": true,
"note": "There is exactly one correct answer (c)."
}
],
"all_passed": true,
"fixes_needed": "none"
},
"web_sources": [
{
"title": "Cell membrane",
"url": "https://en.wikipedia.org/wiki/Cell_membrane"
},
{
"title": "Cell Membranes - The Cell - NCBI Bookshelf",
"url": "https://www.ncbi.nlm.nih.gov/books/NBK9928/"
},
{
"title": "Structure of the Plasma Membrane - The Cell - NCBI Bookshelf",
"url": "https://www.ncbi.nlm.nih.gov/books/NBK9898/"
},
{
"title": "Membrane Structure - Molecular Biology of the Cell - NCBI Bookshelf",
"url": "https://www.ncbi.nlm.nih.gov/sites/books/NBK21055/"
},
{
"title": "The Cell Membrane - Structure - Function - TeachMePhysiology",
"url": "https://teachmephysiology.com/histology/cell-structures/cell-membrane/"
}
],
"id": "66f143a2-50e9-4fcb-a8f3-b26529e6dad2"
}
curl --location --request POST 'https://zylalabs.com/api/13456/examq+api+v3/29461/generate+question' --header 'Authorization: Bearer YOUR_API_KEY'
{
"total": 4,
"by_category": [
{
"category": "Biology",
"count": 1
},
{
"category": "Chemistry",
"count": 1
},
{
"category": "Geography",
"count": 1
},
{
"category": "Mathematics",
"count": 1
}
],
"by_difficulty": [
{
"difficulty": "easy",
"count": 1
},
{
"difficulty": "medium",
"count": 3
}
],
"by_language": [
{
"language": "en",
"count": 4
}
]
}
curl --location --request GET 'https://zylalabs.com/api/13456/examq+api+v3/29464/statistics' --header 'Authorization: Bearer YOUR_API_KEY'
注册后,每个开发者都会被分配一个个人 API 访问密钥,这是一个唯一的字母和数字组合,用于访问我们的 API 端点。要使用 ExamQ API v3 API 进行身份验证,只需在 Authorization 标头中包含您的 bearer token。
| 标头 | 描述 |
|---|---|
授权
|
必需
应为 Bearer access_key. 订阅后,请查看上方的"您的 API 访问密钥"。
|
ExamQ API v3 - 高级测验问题生成器。这个强大的API生成高质量的网络验证多项选择测验问题,提供五个答案选项(A-E),涉及各种主题。它利用deepseek-v4-flash进行网络搜索以获取验证信息,使用LLM生成问题,并包括全面的10项质量检查,同时将数据存储在SQLite中。该API支持土耳其语和英语,提供四个复杂性等级、三个难度层级和五种不同的问题样式,以便灵活创建测验。
ExamQ API根据不同的端点返回各种数据类型。“生成问题”端点返回一个带选项和解释的单个测验问题。“列出问题”端点提供存储问题的列表,包括类别和难度等细节。“列出类别”端点返回可用类别及其问题数量,而“统计”提供总问题的概述以及按类别、难度和语言的细分
响应数据中的关键字段包括“question_text”“options”(选项A-E)“correct_answer”和“explanation”用于“生成问题”端点对于“列出问题”字段包括“id”“category”“topic”“language”“complexity”“difficulty”和问题文本“统计”端点包括“total”“by_category”“by_difficulty”和“by_language”
“生成问题”端点接受主题、语言、复杂性级别、难度级别和问题风格等参数,可以通过查询参数或JSON主体传递。“列出问题”端点允许按类别筛选。“列出类别”和“统计”端点无需参数
响应数据以JSON格式组织。例如,“生成问题”端点返回一个包含问题、选项和解释字段的对象。“列出问题”端点返回一个问题对象数组,每个对象包含详细属性。“统计”端点提供按类别、难度和语言的计数结构化概述
ExamQ API 通过网络搜索经过验证的事实来获取数据,确保信息的高质量和准确性。这些数据在存储到 SQLite 数据库之前会根据十项标准进行质量检查,以帮助维护准确性和可靠性
ExamQ API的典型使用案例包括创建教育测验、增强学习平台和为学生生成练习测试 开发人员可以使用该API根据特定主题、复杂性和难度级别动态生成问题,以满足多样化的教育需求
用户可以通过将返回的数据集成到测验应用程序或教育平台中来使用这些数据。例如,他们可以向用户显示问题文本和选项,验证答案是否与“correct_answer”字段匹配,并提供解释以增强学习。结构化格式便于在各种用户界面中解析和显示
数据准确性通过多步骤过程得以维持,该过程包括对经过验证的事实进行网络搜索、生成LLM问题以及严格的10项标准质量检查。这确保生成的测验问题不仅相关,而且在存储到数据库之前是事实正确且高质量的