Movement Of Substances Into And Out Of Cells
Gbogbo ọrọ náà
Cells are not sealed boxes. They constantly exchange substances with their surroundings, taking in what they need and removing what they do not. Three transport mechanisms make this possible: diffusion, osmosis and active transport.
In this lesson you will learn how each process works, what factors speed them up or slow them down, and how to investigate diffusion and osmosis in the lab. These concepts underpin gas exchange, nutrient absorption and water balance across the whole course.
Ebumnobi
- Understand the processes of diffusion, osmosis and active transport by which substances move into and out of cells
- Understand how factors affect the rate of movement of substances into and out of cells, including the effects of surface area to volume ratio, distance, temperature and concentration gradient
- Investigate diffusion and osmosis using living and non-living systems
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Movement Of Substances Into And Out Of Cells. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which process moves water molecules through a partially permeable membrane? A) Diffusion B) Active transport C) Osmosis D) Evaporation Answer: C
- What happens to an animal cell placed in pure water? A) It becomes turgid B) It becomes plasmolysed C) It may burst (lysis) D) Nothing happens Answer: C
- Active transport requires energy from which process? A) Photosynthesis B) Osmosis C) Diffusion D) Respiration Answer: D
- Which factor does NOT directly affect the rate of diffusion? A) Temperature B) Concentration gradient C) Colour of the solution D) Surface area Answer: C
- A plant cell placed in a concentrated salt solution will become: A) Turgid B) Plasmolysed C) Lysed D) Unchanged Answer: B
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
Passive Transport
Explain why and how passive transport occurs
"Biology: Passive Transport" 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/5-2-passive-transport. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Akụkụ akwụkwọ
Active Transport
Understand how electrochemical gradients affect ions
"Biology: Active Transport" 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/5-3-active-transport. Access for free at https://openstax.org/books/biology/pages/1-introduction
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Movement Of Substances Into And Out Of Cells? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
Budata Ngwa Ahụ Na Google Playstore
Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
