Human Biology - 4HB1 PearsonEdexcel

Pathogens And Disease Transmission

Bayani Gaba-gaba

An outbreak of cholera in a city with poor sanitation, an athlete picking up a fungal infection in a shared changing room, and malaria spreading through a region with stagnant water all look like unrelated problems, but each follows directly from the biology of the organism responsible and the route it uses to reach a new host.

This lesson covers how infectious disease develops in a person, the structure and biology of viruses and bacteria, and the specific transmission, treatment and prevention of six named diseases: Ebola, HIV, cholera, gonorrhoea, athlete's foot, malaria and typhoid, including the roles of the mosquito and housefly as disease vectors.

Manufura

  1. Understand the general course of a disease as: infection, incubation and symptoms
  2. Know that diseases are caused by pathogenic microorganisms
  3. Describe the structure and reproduction of viruses
  4. Describe methods of transmission, treatment and prevention of the spread of Ebola and HIV (human immuno-deficiency virus), the virus that causes AIDS
  5. Describe the structure, nutrition and reproduction of bacteria including the interpretation of bacterial growth curves
  6. Investigate the effects of antibacterial agents and antibiotics on the growth of bacterial culture
  7. Know the methods of transmission, treatment and prevention of the spread of cholera and gonorrhoea
  8. Explain the importance of oral rehydration therapy
  9. Know the methods of transmission, treatment and prevention of the spread of athlete's foot
  10. Explain the role of the mosquito (malaria) and housefly (typhoid) in transmitting causative agents of disease
  11. Describe the treatment and prevention of the spread of malaria and typhoid

Takardar Darasi

An infectious disease follows a general course once a pathogen, a microorganism capable of causing disease, enters the body. First is infection: the pathogen establishes itself in the host and begins to multiply. This is followed by an incubation period, the interval during which the pathogen multiplies but the host shows no obvious symptoms, even though they may already be able to pass the infection on. Finally, symptoms appear once the pathogen population, or the toxins and tissue damage it causes, becomes large enough for the body to react visibly.

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Nazarin Darasi

Barka da kammala darasi akan Pathogens And Disease Transmission. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. Which stage of a disease occurs when a pathogen is multiplying in the body but no symptoms are yet visible? A) Infection B) Incubation period C) Symptomatic stage D) Recovery Answer: B
  2. Which organism acts as the vector for malaria? A) Housefly B) Anopheles mosquito C) Bacterium D) Fungus Answer: B
  3. What type of pathogen causes athlete's foot? A) Virus B) Bacterium C) Fungus D) Parasite Answer: C
  4. Which phase of bacterial growth shows a constant rate of cell division and a steep rise in numbers? A) Lag phase B) Exponential (log) phase C) Stationary phase D) Death phase Answer: B
  5. Oral rehydration therapy is used mainly to treat the effects of which disease? A) Malaria B) Athlete's foot C) Cholera D) HIV Answer: C

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

Yi Aikin Tambayoyin Gwaji

Kana son yin aikin tambayoyin gwaji kan Pathogens And Disease Transmission? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.

Sauke Manhajar Daga Google Playstore

Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.

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Fiye da Lura-Luran Darussa 1200
Tallafin Wajen Layi - Koyo Kowane Lokaci, Ko'ina
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