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Articles tagged as "Transport in plants"

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Making and using a straw potometer

Making and using a straw potometer

This is a quick and easy way to demonstrate how to use a potometer to measure the rate of transpiration in a plant.


Interviews with scientists - the mystery of the evolution of stomata

Interviews with scientists - the mystery of the evolution of stomata

In this 5 minute talk, Professor Alistair Hetherington of Bristol University discusses the mysterious evolution of stomata. The accompanying notes include a teachers' summary, plus student questions and answers.


A-level set practicals - using a potometer

A-level set practicals - using a potometer

This new resource supports the use of practicals across various 2015 A-level biology specifications. The simple potometer allows students to measure the rate of transpiration of a plant specimen within a one hour lesson. Students can record the water loss at regular intervals and could investigate the effect of different abiotic factors on the rate of transpiration.


Can you beat the Giant Redwood? Investigating xylem

Can you beat the Giant Redwood? Investigating xylem

In this lively starter activity to introduce the topic of xylem, students are posed the question ‘Can you beat a Giant Redwood?’. Giant Redwoods can reach 100m tall and have to transport the water they absorb through their roots up through the trunk to the very top of the tree. How do they do this?


Gravitropism at post-16 - the Role of Roots

Gravitropism at post-16 - the Role of Roots

This post-16 resource looks at root growth, with a focus on gravitropism. Using agar plates and white mustard seeds, students can visualise the development of roots, their root hair cells, observe the zones of elongation and differentiation and illustrates gravitropism very effectively in roots.


Video clip - Production of oxygen in plants

Video clip - Production of oxygen in plants

This BBC video clip demonstrates a classic experiment to investigate the production of oxygen by plants in sunlight. The design of Ingenhousz’ experiments can be discussed. The control of variables controlling photosynthesis such as light and heat etc. can be considered, and the way that only one variable can be changed while all others are controlled if firm conclusions are to be drawn.


Microscopy - Looking at xylem and specialised cells

Microscopy - Looking at xylem and specialised cells

Resources to show how you can use microscopes for quick, cheap and easy practicals in your lab. These two resources focus on looking at the structure and function of xylem and other specialised plant cells.


An Investigation into Leaf Surface Temperature

An Investigation into Leaf Surface Temperature

This practical is designed to be used as the opening lesson of the transport in plants section of the A level specification. It aims to engage the students in an investigation-based introduction to this topic rather than one based on content. The simple investigation will ask, “What happens to the surface temperature of leaves if petroleum jelly is applied to their lower surfaces?”


How Science Works - Copper Pollution from Mines

How Science Works - Copper Pollution from Mines

This resource considers how pollution from copper mines affects growth of plants, including a data analysis activity and a practical.


Investigating transpiration with a potometer

Investigating transpiration with a potometer

In this practical experiment, students look at how at potometer can be used to measure factors affecting transpiration rates, and develop investigations to compare the transpiration rates under different circumstances.

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