Quiz — Ch2BCG.ppt

Question 1 sur 10 20:00

[{"id":77266,"question":"Quel organite est responsable de la production d'énergie dans la cellule ?","option_a":"Réticulum endoplasmique","option_b":"Mitochondrie","option_c":"Appareil de Golgi","option_d":"Lysosome","option_e":"","option_f":"","bonne_reponse":"b","explication":"La mitochondrie est l'organite qui produit l'énergie cellulaire sous forme d'ATP grâce à 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\": \"Réticulum endoplasmique\", \"b\": \"Mitochondrie\", \"c\": \"Appareil de","_debug_options_count":4},{"id":77267,"question":"La transcription de l'ADN en ARN se déroule dans le cytoplasme.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La transcription a lieu dans le noyau de la cellule, où l'ADN est localisé.","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":77268,"question":"Quel est le génotype d'un individu homozygote pour l'allèle récessif d'un gène ?","option_a":"AA","option_b":"Aa","option_c":"aa","option_d":"aA","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un individu homozygote récessif possède deux allèles identiques récessifs (aa) pour un gène donné.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"AA\", \"b\": \"Aa\", \"c\": \"aa\", \"d\": \"aA\"}}","_debug_options_count":4},{"id":77269,"question":"Les anticorps sont produits par :","option_a":"Les lymphocytes B","option_b":"Les macrophages","option_c":"Les neutrophiles","option_d":"Les cellules dendritiques","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les lymphocytes B, une fois activés, se différencient en plasmocytes qui produisent des anticorps.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Les lymphocytes B\", \"b\": \"Les macrophages\", \"c\": \"Les neutrophile","_debug_options_count":4},{"id":77270,"question":"La loi de ségrégation de Mendel s'applique à :","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La loi de ségrégation stipule que chaque individu possède deux allèles pour un gène, qui se séparent lors de la formation des gamètes.","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":77271,"question":"Quel est le rôle principal de l'ARN polymérase ?","option_a":"Synthétiser l'ADN","option_b":"Transcrire l'ADN en ARN","option_c":"Traduire l'ARN en protéines","option_d":"Dégrader les protéines","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'ARN polymérase est une enzyme qui synthétise l'ARN à partir d'une matrice d'ADN lors de la transcription.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Synthétiser l'ADN\", \"b\": \"Transcrire l'ADN en ARN\", \"c\": \"Tradui","_debug_options_count":4},{"id":77272,"question":"Une cellule procaryote possède un noyau délimité par une membrane.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Les cellules procaryotes (bactéries) n'ont pas de noyau délimité par une membrane ; leur ADN est libre dans le cytoplasme.","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":77273,"question":"Quel type de mutation est le plus susceptible de provoquer un changement drastique dans la structure d'une protéine ?","option_a":"Mutation silencieuse","option_b":"Mutation faux-sens","option_c":"Mutation non-sens","option_d":"Mutation par délétion","option_e":"","option_f":"","bonne_reponse":"c","explication":"Une mutation non-sens introduit un codon stop prématuré, entraînant une protéine tronquée et non fonctionnelle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Mutation silencieuse\", \"b\": \"Mutation faux-sens\", \"c\": \"Mutation ","_debug_options_count":4},{"id":77274,"question":"Les lymphocytes T auxiliaires jouent un rôle clé dans :","option_a":"La phagocytose","option_b":"La production d'anticorps","option_c":"L'activation des lymphocytes B","option_d":"La digestion cellulaire","option_e":"","option_f":"","bonne_reponse":"c","explication":"Les lymphocytes T auxiliaires activent les lymphocytes B et les lymphocytes T cytotoxiques pour une réponse immunitaire efficace.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"La phagocytose\", \"b\": \"La production d'anticorps\", \"c\": \"L'activa","_debug_options_count":4},{"id":77275,"question":"Le crossing-over se produit lors de la :","option_a":"Mitose","option_b":"Méiose","option_c":"Réplication de l'ADN","option_d":"Transcription","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le crossing-over est un échange de segments chromosomiques entre chromatides homologues, caractéristique de la prophase I de la méiose.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Mitose\", \"b\": \"Méiose\", \"c\": \"Réplication de l'ADN\", \"d\": \"Tran","_debug_options_count":4}]