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'Organism' A 'Organism' B 2. Use the values given in Figure 7.4 to work out the surface area, volume and surface area-to- volume ratio (surface area ÷ volume) for 'Organism' A and 'Organism' B. (Remember: Surface area of each of the sides = length of the side x breadth of the side. Volume = length x breadth x height of the shape.) 3. Copy and complete the table. Use the values calculated in step 2. 2 cm 3 cm 6 cm 1 cm Fig. 7.4 Arrangement of cubes to represent two organisms Organism Surface area (cm²) Volume (cm³) Surface area: volume ratio A B Questions 1. Which arrangement of books would best represent a) a flatworm and b) an earthworm, which has a tubular shape? 3. (2) 2. Which 'organism' (A or B) has the largest surface area-to-volume ratio? (1) If a flatworm and an earthworm have the same volume, which worm would have the largest surface area-to-volume ratio? 4. Do you think that a flatworm and an earthworm could rely on diffusion across their body surfaces to meet their needs for gas exchange? Explain your answer. (1) (3) Stran Gas exchange ore Animals and plants that live in environments have different w Efficient gas exchange surfaces features: their surface area is permeable. Unicellular organisms are a area-to-volume ratio to be such as flatworms, the gas gases over short distances skin as a gas exchange org have a large surface area- moist these animals live! does not have a sufficien surface is enlarged by be exchange gases through for terrestrial animals a exchange surfaces prek There is no problem to the organisms are summ organisms face a prob water to the air by eva exchange surfaces loc

'Organism' A 'Organism' B 2. Use the values given in Figure 7.4 to work out the surface area, volume and surface area-to- volume ratio (surface area ÷ volume) for 'Organism' A and 'Organism' B. (Remember: Surface area of each of the sides = length of the side x breadth of the side. Volume = length x breadth x height of the shape.) 3. Copy and complete the table. Use the values calculated in step 2. 2 cm 3 cm 6 cm 1 cm Fig. 7.4 Arrangement of cubes to represent two organisms Organism Surface area (cm²) Volume (cm³) Surface area: volume ratio A B Questions 1. Which arrangement of books would best represent a) a flatworm and b) an earthworm, which has a tubular shape? 3. (2) 2. Which 'organism' (A or B) has the largest surface area-to-volume ratio? (1) If a flatworm and an earthworm have the same volume, which worm would have the largest surface area-to-volume ratio? 4. Do you think that a flatworm and an earthworm could rely on diffusion across their body surfaces to meet their needs for gas exchange? Explain your answer. (1) (3) Stran Gas exchange ore Animals and plants that live in environments have different w Efficient gas exchange surfaces features: their surface area is permeable. Unicellular organisms are a area-to-volume ratio to be such as flatworms, the gas gases over short distances skin as a gas exchange org have a large surface area- moist these animals live! does not have a sufficien surface is enlarged by be exchange gases through for terrestrial animals a exchange surfaces prek There is no problem to the organisms are summ organisms face a prob water to the air by eva exchange surfaces loc

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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'Organism' A 'Organism' B 2. Use the values given in Figure 7.4 to work out the surface area, volume and surface area-to- volume ratio (surface area ÷ volume) for 'Organism' A and 'Organism' B. (Remember: Surface area of each of the sides = length of the side x breadth of the side. Volume = length x breadth x height of the shape.) 3. Copy and complete the table. Use the values calculated in step 2. 2 cm 3 cm 6 cm 1 cm Fig. 7.4 Arrangement of cubes to represent two organisms Organism Surface area (cm²) Volume (cm³) Surface area: volume ratio A B Questions 1. Which arrangement of books would best represent a) a flatworm and b) an earthworm, which has a tubular shape? 3. (2) 2. Which 'organism' (A or B) has the largest surface area-to-volume ratio? (1) If a flatworm and an earthworm have the same volume, which worm would have the largest surface area-to-volume ratio? 4. Do you think that a flatworm and an earthworm could rely on diffusion across their body surfaces to meet their needs for gas exchange? Explain your answer. (1) (3) Stran Gas exchange ore Animals and plants that live in environments have different w Efficient gas exchange surfaces features: their surface area is permeable. Unicellular organisms are a area-to-volume ratio to be such as flatworms, the gas gases over short distances skin as a gas exchange org have a large surface area- moist these animals live! does not have a sufficien surface is enlarged by be exchange gases through for terrestrial animals a exchange surfaces prek There is no problem to the organisms are summ organisms face a prob water to the air by eva exchange surfaces loc
Transcribed Image Text:'Organism' A 'Organism' B 2. Use the values given in Figure 7.4 to work out the surface area, volume and surface area-to- volume ratio (surface area ÷ volume) for 'Organism' A and 'Organism' B. (Remember: Surface area of each of the sides = length of the side x breadth of the side. Volume = length x breadth x height of the shape.) 3. Copy and complete the table. Use the values calculated in step 2. 2 cm 3 cm 6 cm 1 cm Fig. 7.4 Arrangement of cubes to represent two organisms Organism Surface area (cm²) Volume (cm³) Surface area: volume ratio A B Questions 1. Which arrangement of books would best represent a) a flatworm and b) an earthworm, which has a tubular shape? 3. (2) 2. Which 'organism' (A or B) has the largest surface area-to-volume ratio? (1) If a flatworm and an earthworm have the same volume, which worm would have the largest surface area-to-volume ratio? 4. Do you think that a flatworm and an earthworm could rely on diffusion across their body surfaces to meet their needs for gas exchange? Explain your answer. (1) (3) Stran Gas exchange ore Animals and plants that live in environments have different w Efficient gas exchange surfaces features: their surface area is permeable. Unicellular organisms are a area-to-volume ratio to be such as flatworms, the gas gases over short distances skin as a gas exchange org have a large surface area- moist these animals live! does not have a sufficien surface is enlarged by be exchange gases through for terrestrial animals a exchange surfaces prek There is no problem to the organisms are summ organisms face a prob water to the air by eva exchange surfaces loc
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