A plant hormone involved in many processes in growth and development, including germination.

A gas naturally produced by a plant to activate fruit ripening.

The process of a fruit changing to be ready to be eaten.

The process of seeds developing into new plants.

The effects of gibberellins and ethene on plant growth and development

Biology

Auxins, phototropism and gravitropism

The effect of light on the growth of seedlings: practical

The effect of gravity on the growth of seedlings: practical

Pupils will learn about uses of gene technology in medicine, such as for genetic testing, and in agriculture, such as the production of genetically engineered crop plants with desirable characteristics.

Pupils learned about the roles of hormones in human reproduction, including control of the menstrual cycle, and other uses of hormones such as in in contraception.

This unit covers the role of plant hormones like auxins, gibberellins, and ethene in growth and development, including phototropism and gravitropism. It explores their commercial uses and focuses on experiments, data analysis, and presenting scientific explanations.

Plant growth and development

{{}} is a gas naturally produced by fruit that activates fruit ripening.

control growth towards a stimulus e.g. light

it reduces the amount of fruit that is spoiled or over ripened

ethene makes fruits firmer and less likely to be damaged

What are the advantages of using ethene in transit?

to encourage root growth as a rooting powder

to increase the size of the fruit they produce

Why would a plant breeder apply artificial gibberellins to their plants?

A banana is over-ripe and has caused the other fruit in the fruit bowl to ripen. Which plant hormone was the banana producing to cause this?

A farmer would like to produce seedless fruit. Which plant hormone would the farmer apply to their crop? 

Plant hormones that control a plants' response to a stimulus are called...

What is the term given to the growth response of a plant to a stimulus?

The effects of gibberellins and ethene on plant growth and development

Lesson outcome