the loss of water from a plant’s leaves

a piece of equipment used to measure the rate of water uptake by a plant

a variable which is kept constant between all experiments

the amount of light reaching a given area in a given time

a measure of how much change occurs per unit of time

The effect of light on water uptake by a plant: practical

Biology

Plant roots are adapted to absorb water and mineral ions

Transport systems in plants: xylem and transpiration

Observing the structure and distribution of stomata: practical

Transport systems in plants: phloem and translocation

Observing xylem and phloem using a light microscope: practical

The effects of environmental factors on the rate of water uptake by a plant

The importance of exchange surfaces and transport systems in plants

Pupils will learn about ways in which the human body maintains a constant internal environment in response to internal and external change, including changes in temperature and water balance.

Pupils learned about aerobic and anaerobic cellular respiration, including the chemical reactants and products of the processes, and practical ways to measure the rate of cellular respiration in living cells.

This unit covers water and mineral uptake in plants, focusing on root hair cells, xylem, and phloem. It includes transpiration, translocation, and factors affecting water uptake. Emphasis is on rate calculations, graph interpretation, experiments, and data analysis.

Transport and exchange surfaces in plants

Physical activity and equipment requiring safe use

Higher light intensity decreases the rate of water uptake.

Higher light intensity increases the rate of water uptake.

Light intensity has no effect on water uptake.

Lower light intensity increases the rate of water uptake.

How does light intensity affect the rate of water uptake in plants?

What is the formula to calculate the rate of water uptake?

Why is a beaker of water used in this experiment?

During a potometer experiment lasting 20 minutes, the start reading was 0.5 cm³ and the end reading was 3.2 cm³. What is the rate of water uptake?

What do plants need to perform photosynthesis?

Which part of the plant is primarily responsible for water absorption?

What is the function of stomata in leaves?

the process of water loss from the leaves 

the evaporation of water from the leaf of a plant

the movement of water and dissolved minerals through a plant

How do you calculate the rate of a process?

The effect of light on water uptake by a plant: practical

Lesson outcome

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