Quiz — 4. Devoir de controle 1 S-Exp-2018.pdf

Question 1 sur 10 20:00

[{"id":25004,"question":"Quelle est l'unité de mesure de la force dans le système international ?","option_a":"Newton (N)","option_b":"Pascal (Pa)","option_c":"Joule (J)","option_d":"Watt (W)","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'unité de mesure de la force dans le système international est le Newton (N), en hommage à Isaac Newton.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Newton (N)\", \"b\": \"Pascal (Pa)\", \"c\": \"Joule (J)\", \"d\": \"Watt (W)","_debug_options_count":4},{"id":25005,"question":"La photosynthèse se déroule principalement dans les mitochondries.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La photosynthèse a lieu dans les chloroplastes, et non dans les mitochondries, qui sont le siège de la respiration cellulaire.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":25006,"question":"Quel est le pH d'une solution neutre à 25°C ?","option_a":"pH = 0","option_b":"pH = 7","option_c":"pH = 14","option_d":"pH = 10","option_e":"","option_f":"","bonne_reponse":"b","explication":"À 25°C, une solution est neutre lorsque son pH est égal à 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"pH = 0\", \"b\": \"pH = 7\", \"c\": \"pH = 14\", \"d\": \"pH = 10\"}}","_debug_options_count":4},{"id":25007,"question":"La loi d'Ohm s'exprime par la formule :","option_a":"U = R\/I","option_b":"U = R × I","option_c":"I = R × U","option_d":"R = U × I","option_e":"","option_f":"","bonne_reponse":"b","explication":"La loi d'Ohm s'exprime par U = R × I, où U est la tension, R la résistance et I l'intensité du courant.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"U = R\/I\", \"b\": \"U = R × I\", \"c\": \"I = R × U\", \"d\": \"R = U × I\"","_debug_options_count":4},{"id":25008,"question":"Les enzymes sont des catalyseurs biologiques.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les enzymes sont bien des catalyseurs biologiques, accélérant les réactions chimiques dans les organismes vivants.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":25009,"question":"Quel gaz est produit lors de la combustion complète du méthane (CH₄) ?","option_a":"Dioxygène (O₂)","option_b":"Dioxyde de carbone (CO₂)","option_c":"Monoxyde de carbone (CO)","option_d":"Hydrogène (H₂)","option_e":"","option_f":"","bonne_reponse":"b","explication":"La combustion complète du méthane produit du dioxyde de carbone (CO₂) et de l'eau (H₂O).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Dioxygène (O₂)\", \"b\": \"Dioxyde de carbone (CO₂)\", \"c\": \"Mono","_debug_options_count":4},{"id":25010,"question":"La mitose permet de produire des cellules haploïdes.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La mitose produit des cellules filles génétiquement identiques à la cellule mère, donc diploïdes. La méiose produit des cellules haploïdes.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":25011,"question":"Quelle est la formule chimique de l'eau ?","option_a":"H₂O₂","option_b":"CO₂","option_c":"H₂O","option_d":"O₂","option_e":"","option_f":"","bonne_reponse":"c","explication":"La formule chimique de l'eau est H₂O, composée de deux atomes d'hydrogène et d'un atome d'oxygène.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"H₂O₂\", \"b\": \"CO₂\", \"c\": \"H₂O\", \"d\": \"O₂\"}}","_debug_options_count":4},{"id":25012,"question":"Le courant électrique dans un métal est dû au mouvement des :","option_a":"Protons","option_b":"Neutrons","option_c":"Électrons","option_d":"Ions","option_e":"","option_f":"","bonne_reponse":"c","explication":"Dans un métal, le courant électrique est dû au mouvement des électrons libres.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Protons\", \"b\": \"Neutrons\", \"c\": \"Électrons\", \"d\": \"Ions\"}}","_debug_options_count":4},{"id":25013,"question":"La respiration cellulaire nécessite la présence de dioxygène.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La respiration cellulaire aérobie nécessite du dioxygène pour produire de l'énergie sous forme d'ATP.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4}]