🧬 Biology · Topic 25 of 98

Seed Germination

Germination is when a seed begins to grow into a plant, which needs water, oxygen and a suitable temperature.

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Germination is when a seed begins to grow into a plant, which needs water, oxygen and a suitable temperature.

  • Water activates enzymes
  • The root emerges first
  • Light is not needed until the shoot emerges

🧠 Quick quiz

Three questions. Score 2 or more to complete the topic.

What is Seed Germination?

Within Biology, which covers cells, the human body, genetics, evolution, plants and ecosystems: the science of living things, this topic explains Seed Germination. Biology topics show how living things work, from the cell up to whole ecosystems, with models you can explore step by step.

Check that you can explain Seed Germination in your own words and give one example from everyday life. If you can do that, you have understood the core idea.

Understanding Seed Germination helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.

Seed Germination in detail

Germination is the start of growth of a seed into a seedling. Seeds need water, oxygen and a suitable temperature, though not light for most seeds, as they use food stores in the seed until the leaves can photosynthesise. Water activates enzymes that break down stored food, and oxygen is needed for respiration.

The radicle (root) emerges first, followed by the plumule (shoot). Experiments with seeds in different conditions, such as dry, cold or without oxygen, show which factors are needed. Some seeds have dormancy that must be broken by cold or other triggers. Germination is the key stage in crop growing.

How the interactive helps you understand Seed Germination

Click a step, or use the Previous and Next buttons, to move through the sequence one stage at a time. Auto-play moves on for you.

Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Seed Germination.

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Frequently asked questions about Seed Germination

What is Seed Germination?

Germination is when a seed begins to grow into a plant, which needs water, oxygen and a suitable temperature.

What are the most important points about Seed Germination?

The main points are: Water activates enzymes; The root emerges first; Light is not needed until the shoot emerges.

Why is Seed Germination useful?

Understanding Seed Germination helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.

How can I practise Seed Germination?

Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.

Which topics are related to Seed Germination?

Related topics in Biology include The Breathing System, The Circulatory System, Blood and Its Components.

← PreviousReproduction in Flowering PlantsNext →Respiration

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