Transport
Akopọ
Every cell in your body needs a constant supply of oxygen, glucose and other nutrients, yet most of those cells are far too deep inside your tissues to receive anything by simple diffusion. Transport systems solve this problem: in plants, xylem and phloem carry water, minerals and sugars between roots and leaves; in humans, the heart drives blood through a double circulatory system that delivers materials to every tissue and removes waste.
This topic covers why multicellular organisms need dedicated transport networks, how plant vascular tissues work, what blood is made of and how each component does its job, the structure and function of the heart and blood vessels, and the risk factors that can compromise your circulation.
Awọn Afojusun
- 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 role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant
- Describe the role of xylem in transporting water and mineral ions from the roots to other parts of the plant
- 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
- Understand how the immune system responds to disease using white blood cells
- Describe the structure of the heart and how it functions
- Explain how the heart rate changes during exercise and under the influence of adrenaline
- Understand how specific factors may increase the risk of developing coronary heart disease
- Understand how the structure of arteries, veins and capillaries relates to their function
- Understand the general structure of the circulation system
Àwòrán ọpọlọ
A ti ṣe àwòrán kókó yìí kí o lè rí bí àwọn èrò ṣe so pọ̀.
Ṣí àwòrán ọpọlọ nínú áàpù
Káàdì ìrántí
Ìdánrawò kíákíá lórí ohun tí wọ́n ń dán wò nínú kókó yìí.
Ṣe ìdánrawò káàdì wọ̀nyí nínú áàpù
Akọ̀wé Ẹ̀kọ́
Àkọsílẹ̀ Ẹ̀kọ́ Pípé wà lórí Ohun Èlò Green Bridge
Gba ohun èlò Green Bridge CBT sórí fóònù tàbí kọ̀mpútà rẹ fún gbogbo ilé ìkàwé IGCSE: ìwé ìdánwò àtijọ́, ìlànà ìdíwọ̀n, àwòrán èrò, káàdì ìkẹ́kọ̀ọ́ àti ẹ̀kọ́ ohùn.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Transport. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Which component of blood is responsible for transporting oxygen? A) Plasma B) White blood cells C) Red blood cells D) Platelets Answer: C
- Phloem in plants transports: A) Water and mineral ions B) Sucrose and amino acids C) Oxygen and carbon dioxide D) Water and sucrose Answer: B
- Which chamber of the heart has the thickest muscular wall? A) Right atrium B) Left atrium C) Right ventricle D) Left ventricle Answer: D
- What is the function of valves in veins? A) To speed up blood flow B) To prevent the backflow of blood C) To filter waste from the blood D) To increase blood pressure Answer: B
- Why can unicellular organisms rely on diffusion alone for transport? A) They have transport proteins B) They have a large surface area to volume ratio C) They have a circulatory system D) They are always in water Answer: B
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
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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Abala ìwé ẹ̀kọ́
Transport of Water and Solutes in Plants
Define water potential and explain how it is influenced by solutes, pressure, gravity, and the matric potential
"Biology: Transport of Water and Solutes in Plants" 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/30-5-transport-of-water-and-solutes-in-plants. Access for free at https://openstax.org/books/biology/pages/1-introduction
Àwọn àjọ mìíràn ló tẹ̀ wọ́n jáde lábẹ́ ìwé àṣẹ ṣíṣí, a sì dá wọn lọ́lá bí wọ́n ṣe béèrè. Àwọn ìjápọ̀ ń ṣí ojú òpó wọn.
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Transport? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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