Gibberellins 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.

PERSONALISED 1-TO-1 TUTORING

Need more help on this topic? Get 1-to-1 support

Get support with clear explanations, practice and feedback (Ages 5 to 16).

  • DBS-checked tutors
  • Flexible times
  • Parents can be updated
Book a free 10-min call See pricing

Want an ad-free experience? Subscribe to remove ads

What are gibberellins?

Gibberellins are plant hormones that speed up or start some kinds of growth.

Which main plant processes are controlled by gibberellins?

Gibberellins help to control seed germination, stem growth and flowering.

How do gibberellins help seeds to germinate?

They make the seed start to grow by causing it to use its stored food so the new plant can grow.

What is seed dormancy and how can gibberellins affect it?

Seed dormancy is when a seed stays inactive and does not grow, even if it has water and warmth. Gibberellins can end dormancy so the seed starts to germinate.

How do farmers use gibberellins to control seed germination?

Farmers can spray seeds with gibberellins so many seeds germinate at the same time, making crops easier to grow and harvest.

How do gibberellins affect plant stems?

Gibberellins make stems grow longer by increasing growth in the stem cells, so the plant becomes taller.

How can gardeners use gibberellins to control flowering time?

Gardeners can add gibberellins to plants so they flower earlier, later or all at once, for example to have flowers ready for a special date.

How are gibberellins used to change fruit size in farming?

Farmers spray gibberellins onto fruit crops to make the fruits grow larger, which can increase the yield.

Why are gibberellins helpful when growing seedless fruit such as seedless grapes?

Seedless fruits can be small because they have no seeds. Gibberellins help seedless fruits grow to a normal or larger size.

Previous Topic
Back to Lesson
Next Topic