(Lon) 17. Which of the following chrimical is amines d) Nitrosenines c) Alkylating agains (LOY) 18. Which peried of prepancy shows the a) During preimplantation b)Thind Time of birth e) Feral period (Lon) 19. Which of the below chemical is met an endocrise disroplice? as PCBs a) Dis c) Tatradiol 1.011)20 Ipecas Byrop indoced eneris is applied to poisonings when the poinceing agend is cee of the below agmis. a) Puracetamol b) CNy depression agents c) Cyanide d) Strycheine e) Coening (LO11) 21. Activated charcoal is get applied to policeing when the polsoning agent is one of the below agents. a) Ince b) Barbiturates c) Atropine d) Opiates e) Strychrine (LO11) 22. Apoenorphine MCL should my be applied to poisoning when the poisoning agent is one of the below ageets? a) Aspirin b) Paracetamol c) Morphine d) Penicilline e) Tetracycline (LOII) 23. la the case of paracetamol intexication which systemic antidate is administened? a)Vitrite b) Flummarial c)Waceryloysizine d) Atropin e) Thiosulphate (LO9) 24.Which one of the following is not the feature of nongenotoxic (epigenetic) carcinogen? a)Nonewstagenic b) Tumorigenecity is dose responsive c) May function at tumor promotion stage d) No direct DNA damage c)No theoretical threshold (LO9) 25.Which one of the following agent is not an epigenetic carcinogen? a)DDT b) Nitrasomethylures c)Estradiol d) Asbestos c)Dioxin

17. The correct answer is a) Amines. Amines are organic compounds derived from ammonia by replacement of one or more hydrogen atoms by alkyl or aryl groups. They are not classified as a specific type of chemical but rather as a functional group.<br /><br />18. The correct answer is a) During preimplantation. Preimplantation refers to the early stage of pregnancy when the fertilized egg has not yet implanted in the uterine lining. This period is crucial for the development of the embryo and is the most sensitive to environmental factors.<br /><br />19. The correct answer is a) PCBs. PCBs (Polychlorinated Biphenyls) are a type of chemical compound that can act as an endocrine disruptor. Endocrine disruptors are chemicals that can interfere with the normal functioning of the endocrine system, leading to reproductive, developmental, and other health issues.<br /><br />20. The correct answer is c) Cyanide. Ipec-induced emesis (vomiting) is applied to poisonings when the poisoning agent is cyanide. Cyanide is a potent poison that can cause rapid and severe symptoms, and inducing vomiting can help remove the poison from the stomach.<br /><br />21. The correct answer is d) Opiates. Activated charcoal is applied to poisonings when the poisoning agent is one of the below agents. Opiates are a class of drugs that can cause respiratory depression and other serious side effects, and activated charcoal can help absorb the poison.<br /><br />22. The correct answer is c) Morphine. Apoenorphine MCL should only be applied to poisoning when the poisoning agent is one of the below agents. Morphine is an opioid analgesic that can cause respiratory depression and other serious side effects, and apoenorphine MCL can help reverse these effects.<br /><br />23. The correct answer is e) Thiosulphate. In the case of paracetamol (acetaminophen) intoxication, the systemic antidote administered is thiosulphate. Thiosulphate helps to convert the toxic metabolite of paracetamol into a less toxic form that can be excreted from the body.<br /><br />24. The correct answer is d) No direct DNA damage. Nongenotoxic (epigenetic) carcinogens do not cause direct damage to the DNA but can still promote the development of cancer. These carcinogens may act by altering gene expression or other cellular processes, leading to the development of cancer.<br /><br />25. The correct answer is d) Asbestos. Asbestos is not an epigenetic carcinogen. Asbestos is a group of naturally occurring fibrous minerals that can cause lung cancer and other respiratory diseases when inhaled. It is classified as a genotoxic carcinogen, meaning it can directly damage the DNA and cause mutations that lead to cancer.