Explain the need for excretion, limited to toxicity of urea
Explain the need for excretion, limited to toxicity of urea
1 AnswerQuestions and Answers
1 AnswerIdentify, on diagrams, the kidneys, ureters, bladder and urethra and state the function of each (the function of the kidney should be described simply as removing urea and excess salts and water from the blood as urine)
Identify, on diagrams, the kidneys, ureters, bladder and urethra and state the function of each (the function of the kidney should be described simply as removing urea and excess salts and water from the blood as urine)
1 AnswerState that urea is a toxic waste product produced in the liver from the breakdown of excess amino acids
State that urea is a toxic waste product produced in the liver from the breakdown of excess amino acids
1 AnswerState that carbon dioxide is a waste product of respiration, which is excreted through the lungs
State that carbon dioxide is a waste product of respiration, which is excreted through the lungs
1 AnswerDescribe excretion as the removal of toxic materials and the waste products of metabolism from organisms
Describe excretion as the removal of toxic materials and the waste products of metabolism from organisms
1 AnswerOutline how HIV affects the immune system, limited to: decreased lymphocyte numbers and reduced ability to produce antibodies, which weakens the immune system
Outline how HIV affects the immune system, limited to: decreased lymphocyte numbers and reduced ability to produce antibodies, which weakens the immune system
1 AnswerDescribe that memory cells are not produced in passive immunity
Describe that memory cells are not produced in passive immunity
1 AnswerExplain the importance of breast-feeding for the development of passive immunity in infants
Explain the importance of breast-feeding for the development of passive immunity in infants
1 AnswerExplain the role of vaccination in controlling the spread of transmissible diseases
Explain the role of vaccination in controlling the spread of transmissible diseases
1 AnswerOutline the process of vaccination: (a) weakened pathogens or their antigens are given (b) the antigens stimulate an immune response by lymphocytes which produce antibodies (c) memory cells are produced that give long-term immunity
Outline the process of vaccination: (a) weakened pathogens or their antigens are given (b) the antigens stimulate an immune response by lymphocytes which produce antibodies (c) memory cells are produced that give long-term immunity
1 AnswerTotal Questions 4326
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