an instrument that uses visible light and lenses to magnify a viewed specimen

the number of times greater in size the viewed object is compared to its actual size

specialised vessels in plants that transport water and mineral ions

specialised vessels in plants that transport sugar, amino acids and other nutrients

Observing xylem and phloem using a light microscope: practical

Combined science

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

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

magnification = actual size ÷ image size

magnification = image size ÷ actual size

magnification = image size × actual size

Which of the following best describes phloem transport?

What is the total magnification of a microscope with a 100x objective lens magnification and a 40x eyepiece lens magnification.

A microscope has a total magnification of 400x. If it has a 100x objective lens magnification. What is the eyepiece lens magnification?

the size of the specimen as it appears printed on paper.

the number of times bigger the object appears to be.

What is the actual size of the xylem vessel that appears to be 14 mm across in this image?

What are the two main types of vascular tissues in plants?

Which unit is used to measure very small structures, such as cells?

to transport sugar and dissolved nutrients 

to transport water and dissolved minerals 

What is the function of phloem in plants?

Match the letters from the image to their names.

Observing xylem and phloem using a light microscope: practical

Lesson outcome

Content guidance