Endocrine System Q. What is the function of the endocrine system? Q. What happen
ID: 226830 • Letter: E
Question
Endocrine System
Q. What is the function of the endocrine system?
Q. What happens when the hormone arrives at a target tissue?
Q. Describe step-by-step, the process by which each of the following regulatory systems we covered in lecture. Identify the trigger for secretion, the organ that secretes it, the target tissue and the response of the target tissue to the hormone for each:
Sperm production
Blood regulation
Ovum production
Permeability of the collecting duct in the nephron
Q. What would happen if the pancreas did not release insulin?
Q. What would happen if tissues lacked functional receptors for insulin?
Q. Under what conditions are insulin blood levels high? … are glucagon blood levels high?
Immune System
Q. What are the three levels of protection of the immune system?
Q. What is the role of neutrophils and macrophages (“phagocytes”)?
Q. What is the role of T-cells and B-cells?
Q. What are antibodies and what do they do?
Q. Where does the macrophage get the antigens to present on its surface?
Q. When the T-cells “see” these antigens, what does it do in response?
Q. What is the role of “memory cells”?
Q. What is the relationship between vaccines and memory cells?
Q. What plant is being genetically modified so it produces the surface proteins of flu viruses for vaccine production?
Explanation / Answer
1. Function of endocrine system : To communicate through chemical messengers (hormones) in order to control import functions : growth, development, metabolism, tissue function.
2. Hormones usually affect limited number of cells is called as target cells, it bears receptor for hormone
3. Insulin doesnot secretes leads to hyperglycemia
4. Insulin high in the blood means that when blood glucoses convert to glycogen in the muscles
glucagon high in the blood means that when glycogen stored in muscle is break down and lead to increase blood sugar.
IMMUNE SYSTEM :
1) a. Barrier system,
b. Innate system,
c. Adaptive system.
2) Neutrophils : they respond to chemotatic signals from the area of infections or inflammation, it contains ROS and cytotoxic proteins leads to destroy the microbe
Macrophages: it is most important white blood cells, Matured monocytes in the tissues , 5-6% circulating WBC, long-lived cells.
3) T- cell involved in the Cell Mediated Response where as B- cell involved in Humoral Immunity
4) Antibodies are glycoproteins, it involves the destroy the microbes
5)
6) When T-cells recognize the antigen involves Cell mediated reponse lead to cytolysis
7) MHCII
8) Memory cells are activate during secondary immune response
9) Vaccine contain antigen that cause your body to produce memory cells against a particular pathogen, without the pathogen causing disease where as Memory cells identifiying antigen repeated entry in the body
10) Agrobacterium is used genetically modified vaccine production of flu viruses
Sperm production Testosterone Testis Ovum production Estrogen Ovary Permeability of collecting tubules in nephron Minerocorticoids Adrenal glandRelated Questions
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