Transport
Bayani Gaba-gaba
A single-celled organism can swap gases with its surroundings directly through its membrane, but a human body has trillions of cells, many of them buried deep inside. Without a transport system to carry oxygen, nutrients, and waste, those inner cells would die within minutes.
In this lesson you will explore the composition of blood and the roles of its components, the structure and function of the heart and blood vessels, and how the double circulatory system keeps the body supplied. These are some of the most heavily examined topics on Paper 1.
Manufura
- Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell
- Understand the need for a transport system in multicellular organisms
- Describe the composition of the blood: red blood cells, white blood cells, platelets and plasma
- Understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy
- Understand how adaptations of red blood cells make them suitable for the transport of oxygen, including shape, the absence of a nucleus and the presence of haemoglobin
- Understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen
- Describe the structure of the heart and how it functions
- Understand how the structure of arteries, veins and capillaries relates to their function
- Understand the general structure of the circulation system, including the blood vessels to and from the heart and the lungs
Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Bude taswirar tunani a cikin manhaja
Katunan tunawa
Gwaji mai sauri kan abin da ake jarraba a wannan batu.
Yi atisayen wadannan katuna a cikin manhaja
Takardar Darasi
Cikakken Bayanin Darasi Yana Kan Manhajar Green Bridge
Sami manhajar Green Bridge CBT a wayarka ko kwamfutarka domin cikakken laburaren IGCSE: takardun jarrabawar baya, tsarin kimantawa, taswirar tunani, katunan karatu da darussan sauti.
Nazarin Darasi
Barka da kammala darasi akan Transport. 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.
- Which component of blood transports oxygen? A) Plasma B) White blood cells C) Red blood cells D) Platelets Answer: C
- The pulmonary artery carries: A) Oxygenated blood to the lungs B) Deoxygenated blood to the lungs C) Oxygenated blood to the body D) Deoxygenated blood to the body Answer: B
- Which blood vessel has valves to prevent backflow? A) Artery B) Capillary C) Vein D) Aorta Answer: C
- Why do multicellular organisms need a transport system? A) Their cells are too large for diffusion B) Their SA:V ratio is too small for diffusion alone C) They do not have cell membranes D) They cannot respire without one Answer: B
- Antibodies are produced by: A) Red blood cells B) Platelets C) Phagocytes D) Lymphocytes Answer: D
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
Components of the Blood
List the basic components of the blood
"Biology: Components of the Blood" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/40-2-components-of-the-blood. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Sashen littafi
Mammalian Heart and Blood Vessels
Describe the structure of the heart and explain how cardiac muscle is different from other muscles
"Biology: Mammalian Heart and Blood Vessels" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/40-3-mammalian-heart-and-blood-vessels. Access for free at https://openstax.org/books/biology/pages/1-introduction
Wasu ƙungiyoyi ne suka wallafa su ƙarƙashin lasisin buɗe, kuma muna ambaton su yadda suka nema. Hanyoyin suna buɗe shafukansu.
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Transport? 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.
