YOU ARE LEARNING:
Gibberellins and Ethene
Gibberellins and Ethene
Gibberellins and ethene are responsible for seed germination and fruit ripening respectively.
Like animals, the growth and development of plants is controlled by hormones. Select all of the plant hormones from the list below.
You can select multiple answers
Ethene is the hormone that causes fruits to ripen. **** Ripe **** bananas and tomatoes release ethene. Ethene is used commercially (to help make money), to ripen fruit just before they go to the supermarket.
What do you think could be the benefit of transporting unripe fruit and making it ripe just before putting it on the shelf?
You can select multiple answers
The role of Gibberellins is to...
- make seeds germinate (sprout into new plants).
- control when a plant flowers, or make them grow fewer flowers.
- make flowers which were not fertilised, grow fruits anyway (seedless).
Seeds normally respond to the environment - for example temperature and day length - to grow into plants. How do you think gibberellins are used to control germination and make money? Pick all the options you think are correct.
You can select multiple answers
Name the hormone that causes the ripening of fruits.
Name the hormone that causes germination.
Name the hormone responsible for producing seedless fruit.
Farmers can add a hormone to plants so that they produce fewer flowers. When plants produce fewer flowers, they grow bigger fruits from each flower. Which hormone could help a farmer do this?