Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution...
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![Page 1: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/1.jpg)
Plant growth and distribution
Grade B – Discuss the factors affecting the growth and distribution of plants, including:nutrients; light; temperature; carbon dioxide; oxygen; plant ‘hormones’.Grade A – Compare natural fruit initiation in plants and how it can be manipulated with artificially using hormones Grade A* – Evaluate data on how environmental factors affect the distribution of plants and synthesize your own ideas about the effects of change in the environment.
![Page 2: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/2.jpg)
Design an experiment to investigate the rate of photosynthesis
• List all the variables that might affect photosynthesis
• Draw a diagram of the equipment you will use in your experiment
• Explain how your experiment tests one variable and controls all other variables.
![Page 3: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/3.jpg)
![Page 4: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/4.jpg)
Sketch the plant shoot and the effect that the plant hormone auxin has.
Plant shoot after hormone
![Page 5: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/5.jpg)
What stimuli do plants respond to?
• Light
• Gravity
• Water
• Touch
• Gibberellin – the plant equivalent to HGH.
![Page 6: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/6.jpg)
![Page 7: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/7.jpg)
How are fruits made?
![Page 8: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/8.jpg)
How are seedless fruits made?
![Page 9: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/9.jpg)
Homework
• What do the following hormones do?– Auxin; Gibberellins; Cytokinin; Absiscic acid
and ethylene
• What part(s) of the plant is/are acted on by the hormone?
• Explain the terms: haptotropism; hydrotropism; geotropism; phototropism.
![Page 10: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/10.jpg)
Design an experiment to investigate the rate of photosynthesis
• List all the variables that might affect photosynthesis
• Draw a diagram of the equipment you will use in your experiment
• Explain how your experiment tests one variable and controls all other variables.
![Page 11: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/11.jpg)
Study the diagram and start to think what environmental factors will affect plants A, B, C and D.
The additional information about the habitats might help you.
Take part in a group discussion to answer the Qs on on the following slide.
![Page 12: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/12.jpg)
In your group, discuss the following points.
• What are the main conditions in each habitat A–D? Consider abiotic and biotic factors.
• How do these conditions determine the type of plant that can live there?
• Can you think of specific plants that live in these conditions?
• What are the adaptations shown by cacti to desert conditions?
• What are the adaptations shown by water lilies to their freshwater habitat?
![Page 13: Plant growth and distribution Grade B – Discuss the factors affecting the growth and distribution of plants, including: nutrients; light; temperature;](https://reader034.fdocuments.us/reader034/viewer/2022050819/5697bfc51a28abf838ca6b67/html5/thumbnails/13.jpg)
Where is the light coming from?Why have you suggested that direction?Why does the plant grow in this manner?