This detailed lesson describes the different types of plant responses, including responses to abiotic stress and herbivory and the range of tropisms. The PowerPoint and accompanying resources have been primarily designed to cover the content set out in point (a) of module 5.1.5 of the OCR A-level biology A specification, but as the role of auxins in phototropism and gravitropism are also described, some aspects of point (b) are covered. This lesson also acts as an excellent revision tool as the students’ knowledge of previously-covered topics including classification, defences against pathogens, and biological molecules are constantly challenged.
The lesson begins with one of these challenges, where the students must recognise 7 key terms from their descriptions and use the respective 1st letters to reveal the key term, stimuli. This leads into the recognition of the need for plants to respond to these changes in the environment to increase their chances of survival. Students will have briefly encountered auxins at GCSE and this first part of the lesson builds on this knowledge, introducing IAA, and ensuring that they know the fundamentals, including how these hormones move from the tips to the growing regions. A series of application questions will challenge them to describe how plants display positive phototropism and roots display positive gravitropism.
Moving forwards, the students will learn that nastic responses are independent of the direction of the external stimuli and the Venus flytrap is used as an example. Again, a series of exam-style questions will challenge the students on their knowledge of topics related to this carnivorous plant.
The remainder of the lesson considers responses to abiotic stress, such as water stress and the herbivory response, including the production of alkaloids and pheromones.
The answers to all understanding checks are embedded into the PowerPoint to allow the students to assess their progress.
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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
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Module 5.1.5: Plant and animal responses (OCR A-level Biology A)
All 11 lessons included in this bundle are detailed and contain a wide variety of tasks to challenge and engage the students whilst covering this potentially difficult topic. The content of this module, titled plant and animal responses, is regularly assessed in the PAPER 1 and 3 OCR examinations, so these lessons have been filled with assessment-style questions to continually expose the students to this type of material. The following specification points are covered by this bundle: 5.1.5 a, b, d, g, h, i, k, and l. If you would like to sample the quality of the lessons before committing to the bundle, then why not download the role of plant hormones, organisation of the nervous system and sliding filament theory lessons, as these have been shared for free?
£18.00
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Plant responses (OCR A-level biology A)
This mini-bundle covers key content in the plant half of module 5.1.5, which is titled "Plant and animal responses". The students knowledge and understanding of the plant topics tends to be weaker than that of the animals, so these 3 lessons have to be planned at length to break the content down into smaller chunks and there are multiple opportunities for understanding to be checked. If you would like to sample the quality of these lessons and the time that has been put into their design, then why not download the "role of plant hormones" lesson as this has been shared for free.
£6.40
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