Ethene Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is ethene in plants?

Ethene is a plant hormone that is a gas. It helps to control how the plant grows and develops.

What effect does ethene have on fruits?

Ethene makes fruits ripen. They become softer, sweeter and often change colour.

Where in a plant is most ethene made?

Most ethene is made in ripening fruits. It can also be made in older leaves and flowers.

Why can one ripe fruit make other fruits in a bowl ripen faster?

A ripe fruit gives off ethene gas. The gas spreads to nearby fruits and makes them ripen too.

Why is ethene being a gas useful for the plant?

Because ethene is a gas, it can move through the air. This lets it affect other parts of the plant and nearby fruits.

How do growers use ethene when transporting fruit long distances?

They pick fruit when it is hard and unripe. Near the shops, they add ethene gas so the fruit ripens in time to sell.

Why is controlling fruit ripening with ethene useful for shops and farmers?

It reduces waste because fruit is less likely to go off during transport. It also lets shops sell ripe fruit when customers want it.

Give one example of a fruit that is often ripened using ethene.

Bananas are often picked green and later ripened using ethene gas.

Apart from fruit ripening, name one other plant process that ethene controls.

Ethene helps cause leaves to fall from plants in autumn.

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