Required Practical: Growth (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What two types of tropism does this practical investigate?
What two types of tropism does this practical investigate?
Phototropism and gravitropism
Why are seeds allowed to germinate in a dark place initially?
Why are seeds allowed to germinate in a dark place initially?
To ensure growth isn't influenced by light
Where should the light source be positioned for the phototropism experiment?
Where should the light source be positioned for the phototropism experiment?
On one side of the dark box
How are seedlings positioned to observe gravitropism without a clinostat?
How are seedlings positioned to observe gravitropism without a clinostat?
Placed on their sides
What should be measured during observations of the seedlings?
What should be measured during observations of the seedlings?
Direction, length, and angle of growth
In phototropism, which direction do seedling shoots bend?
In phototropism, which direction do seedling shoots bend?
Towards the light source
What type of phototropism do shoots demonstrate?
What type of phototropism do shoots demonstrate?
Positive phototropism
In gravitropism, which direction do roots grow?
In gravitropism, which direction do roots grow?
Downwards
What type of gravitropism do shoots display?
What type of gravitropism do shoots display?
Negative gravitropism
What does this experiment demonstrate about plant growth?
What does this experiment demonstrate about plant growth?
External stimuli influence growth direction
What is the purpose of a clinostat in the gravitropism experiment?
What is the purpose of a clinostat in the gravitropism experiment?
To negate the effects of gravity
Why must seedlings be handled with care?
Why must seedlings be handled with care?
To avoid damaging delicate structures