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.

What main job does ethene have in fruits?

Ethene controls and speeds up the ripening of fruits.

Which parts of a plant make the most ethene?

Ripening fruits and ageing parts of the plant make the most ethene.

How does ethene change a fruit as it ripens?

Ethene makes the fruit softer, sweeter and often changes its colour.

Besides ripening fruit, what other process does ethene help control in plants?

Ethene helps control cell division in some plant tissues.

Why are some fruits picked before they are ripe and then exposed to ethene gas?

They are easier to transport when hard, and ethene is used later to ripen them before sale.

How do growers use ethene to control when fruit is ready for shops?

They store fruit unripe, then add ethene gas so it ripens just before it is sent to shops.

How can ripening be slowed down during storage before ethene is added?

Fruit can be kept cool and in air with very little ethene gas to slow ripening.

Why is ethene called a hormone even though it is a gas?

It is called a hormone because it is made by the plant and controls how its cells work and grow.