[{"text": "Read the following passage and answer questions (175-179):Ageing is a normal process of human development that takes place on several levels: biological, psychological and social. Although it is not certain what causes ageing, most gerontologists would agree that ageing is the result of a combination of both internal and external processes. The \"wear-and-tear theory\" compares the human body to a machine that over time wears down from use. According to this theory, bodily systems receive cumulative damage from both external forces, such as stress, the environment, diet, and life style; and internal forces, such as toxins, released as a result of metabolism. Cells become damaged and increasingly fail to reproduce or repair themselves. They die off in larger numbers as we age. The \"combination theory\" explains that although individuals can prolong life by modifying outside influences such as stress and diet, each person is born with a genetically predetermined life expectancy that cannot be exceeded. This interaction of external factors and internal programming would account for individual variations in the life span. The mystery surrounding why we age is still a topic of numerous ongoing studies. Perhaps, one day we will truly know why we age.", "type": "text_block", "database_type": "", "university": "", "year": "", "unit": "", "shift": "", "subject": "", "chapter": "", "topic": ""}, {"question": "According to the \"wear-and-tear theory\", ageing takes place due to\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0.", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "biological and social consequences", "answer": true}, {"option": "psychological and biological consequences", "answer": false}, {"option": "psychological and social consequences", "answer": false}, {"option": "biological, mental and social consequences", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2017-18", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "According to the \"wear-and-tear theory\", ageing takes place due to\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0", "full_question": "According to the \"wear-and-tear theory\", ageing takes place due to\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0.

[E-40, DU-A : 2017-18]

"}, {"question": "Gerontologists are-", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "researchers who look into the mental states of human beings.", "answer": false}, {"option": "people who study old age.", "answer": true}, {"option": "nutritionists who study the impacts of food on our health.", "answer": false}, {"option": "scientists who study the physiological processes of human organs.", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2017-18", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "Gerontologists are-", "full_question": "Gerontologists are-

[E-40, DU-A : 2017-18]

"}, {"question": "'Cumulative' in the passage is a/an-", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "verb", "answer": false}, {"option": "adverb", "answer": false}, {"option": "adjective\u00a0", "answer": true}, {"option": "noun", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2017-18", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "'Cumulative' in the passage is a/an-", "full_question": "'Cumulative' in the passage is a/an-

[E-40, DU-A : 2017-18]

"}, {"question": "'Metabolism' is-", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "the process of ageing.", "answer": false}, {"option": "the extract of toxic elements from our body.", "answer": false}, {"option": "the intake of toxic elements through our diet.", "answer": false}, {"option": "the chemical processes that occur within a living organism to maintain life.", "answer": true}], "type": "question", "database_type": "qb", "university": "du", "year": "2017-18", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-40", "topic": "", "title": "'Metabolism' is-", "full_question": "'Metabolism' is-

[E-40, DU-A : 2017-18]

"}, {"question": "A synonym of 'prolong' is-", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "reduce", "answer": false}, {"option": "protract", "answer": true}, {"option": "redeem", "answer": false}, {"option": "curtail", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2017-18", "unit": "a", "shift": "", "subject": "e-b", "chapter": "e-31", "topic": "", "title": "A synonym of 'prolong' is-", "full_question": "A synonym of 'prolong' is-

[E-31, DU-A : 2017-18]

"}]