Required Practical: Plant Growth (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is the aim of this practical investigation?
What is the aim of this practical investigation?
Effect of light or gravity on seedlings
Which variables must be kept the same for both groups in the light experiment?
Which variables must be kept the same for both groups in the light experiment?
Temperature and water amount
Where should Group 1 Petri dishes be placed in the light experiment?
Where should Group 1 Petri dishes be placed in the light experiment?
In a well-lit area under a lamp
Where should Group 2 Petri dishes be placed in the light experiment?
Where should Group 2 Petri dishes be placed in the light experiment?
In a dark box or lightproof enclosure
How long should seedlings be observed daily for in this practical?
How long should seedlings be observed daily for in this practical?
A week
How should Petri dishes be positioned in the gravity experiment?
How should Petri dishes be positioned in the gravity experiment?
Vertical so seedlings grow horizontally
What is positive phototropism?
What is positive phototropism?
Growth towards the light source
How do seedlings in darkness differ from those in light?
How do seedlings in darkness differ from those in light?
They grow taller and more spindly
What is positive gravitropism?
What is positive gravitropism?
Roots growing downwards
What is negative gravitropism?
What is negative gravitropism?
Shoots growing upwards away from gravity
Where do auxins accumulate during phototropism?
Where do auxins accumulate during phototropism?
On the shaded side
What effect do auxins have on root growth in gravitropism?
What effect do auxins have on root growth in gravitropism?
Inhibit growth causing downward bend
What is a potential source of error in this experiment?
What is a potential source of error in this experiment?
Uneven light distribution