Do you know how materials are transported around the body?
Topic Overview - Transport and Exchange of Materials
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#1. Through which process do nutrients enter root hair cells from the soil?
#2. Is active transport an active or a passive process?
#3. In active transport - are particles travelling with or against the concentration gradient?
#4. True or false - A concentration gradient is the difference in concentration from high to low?
#5. In diffusion - are particles travelling with or against the concentration gradient?
#6. Is osmosis an active or a passive process?
#7. Which of the following are factors that affect the rate of diffusion?
#8. Organs that exchange substances into and out of the body have:
#9. How do substances typically move into and out of the body, for example, oxygen in the lungs? ? 1 word answer
#10. What is the process by which organisms remove waste from their bodies?
#11. Which structures in the lungs increase the surface area and therefore the speed and amount of gas exchanged?
#12. In osmosis - are particles travelling with or against the concentration gradient?
#13. Surfaces where diffusion takes place allowing substances to enter the body usually have which characteristics?
Select all that apply:
#14. Through which process would air freshener sprayed in one corner of a room disperse?
#15. True or false - A passive process is the automatic and does not require energy?
#16. Which description most accurately describes osmosis?
#17. What is the name of the protein which moves particles across cell membranes during active transport?
#18. Why is there a size limit to cells?
#19. The respiratory system relies on diffusion of oxygen and carbon dioxide. Which of the following statements are correct?
Select all that apply:
#20. Which of the following are waste products produced by the body?
Select all that apply:
#21. What is meant by an active process?
#22. Urea is produced when amino acids are broken down. Which organ processes urea?
#23. True or false - A concentration gradient is a term used to explain how the moon moves in the night sky?
#24. Through which process would air in a space station move if someone opened a door to space?
#25. Why is the Surface area : Volume ratio so important when it comes to exchange of substances?
#26. Is diffusion an active or a passive process?
#27. Which process in the body produces carbon dioxide?
#28. Multicellular organisms are too large to allow diffusion through their cells to provide the necessary resources. Instead we have transport systems. What is the name of the transport system that uses capillaries to transport substances via the blood?
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