免疫应答(immune response)
免疫应答(immune response)
相关考题：
TD抗原引起的免疫应答的特点是( )。A、只引起细胞免疫应答，不能引起体液免疫应答B、产生免疫应答的细胞为B1细胞C、可直接作用于T、B淋巴细胞产生免疫应答D、只引起体液免疫应答，不能引起细胞免疫应答E、可形成记忆细胞
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.What is used to describe the communication network consisting of cells in the immune system?A:The immune system's memory.B:Immune troops sliminating intruders.C:Bees flying around a hive.D:A sea of microbes.
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.The immune cells and other cells in the body coexist peaceably in a state known as________.A:self-toleranceB:balanceC:harmonyD:tolerance
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.Which of the following best expresses the main idea of this passage?A:An antigen is any substance that triggers an immune response.B:One of the immune system's primary functions is the allergic response.C:The human body is an appropriate habitat for microbes.D:The basic function of the immune system is to distinguish between self and nonseif.
共用题干第一篇Immune FunctionsThe immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication net- work consisting of millions and millions of cells.Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive（蜂巢）.The result is a sensitive system of checks and balances that produces an immune response that is prompt,appropriate,effective,and self-limiting.At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quicklyto eliminate the intruders（人侵者）.Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a self-marker. Rather,immune cells and other body cells coexist peaceably in a state known as self-tolerance.When a normally functioning immune system attacks a nonself molecule,the system has the ability to"remember"the specifics of the foreign body.Upon subsequent encounters with the same species of molecules,the immune system reacts accordingly. With the possible exception of antibodies（抗体）passed during lactation（授乳期）, this so called immune system memory is not inherited.Despite the occurrence of a virus in your family,your immune system must"learn"from experience with the many millions of distinctive nonseif molecules in the sea of microbes（微生物）in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonseif invader.Any substance capable of triggering an immune response is called an antigen（抗原）.Antigens are not to be confused with illergens（过敏原）,which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy.An antigen can be a virus,a bacte-rium,or even a portion or product of one of these organisms.Tissues or cells from another individual also act as antigens,because the immune system recognizes transplanted tissues as foreign,it rejects them.The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary,nonantigenic building blocks.An antigen announces its foreignness by means of intricate and charac- teristic shapes called epitopes（抗原表位）, which protrude（突出）from its surface. Most antigens , even the simplest microbes,carry several different kinds of epitopes on their surface;some may even carry several hundreds.Some epitopes will be more effective than others at stimulating an immune response.Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack.Which of the following statements is true?A:Allergens are usually harmful substances.B:Antigens can trigger an immune response.C:People with antigens do not suffer from obvious responses.D:There is no difference between an antigen and an allergen.
TD-Ag引起的免疫应答的特点是（）。A、产生体液免疫应答的细胞为B1细胞B、只引起体液免疫应答，不引起细胞免疫应答C、可诱导T、B淋巴细胞产生免疫应答D、只引起细胞免疫应答，不能引起体液免疫应答E、可诱导免疫记忆细胞形成
单选题TD-Ag引起的免疫应答的特点是（）。A产生体液免疫应答的细胞为B1细胞B只引起体液免疫应答，不引起细胞免疫应答C可诱导T、B淋巴细胞产生免疫应答D只引起细胞免疫应答，不能引起体液免疫应答E可诱导免疫记忆细胞形成
单选题变态反应的本质是（）A特殊免疫应答B异常免疫应答C正常免疫应答D非特异免疫应答E回忆应答