Stomata (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Where are stomata mainly found on plant leaves?
Where are stomata mainly found on plant leaves?
On the underside of leaves
Which gas enters the leaf through stomata for photosynthesis?
Which gas enters the leaf through stomata for photosynthesis?
Carbon dioxide
What is released through stomata as a byproduct of photosynthesis?
What is released through stomata as a byproduct of photosynthesis?
Oxygen
How many guard cells surround each stoma?
How many guard cells surround each stoma?
Two
What shape are guard cells and what do they contain?
What shape are guard cells and what do they contain?
Sausage-shaped with chloroplasts
What happens to guard cells in bright light?
What happens to guard cells in bright light?
Absorb water by osmosis, become turgid
What happens to guard cells in low light or when water is scarce?
What happens to guard cells in low light or when water is scarce?
Lose water and become flaccid
Why do stomata usually close at night?
Why do stomata usually close at night?
No photosynthesis without light
What does transpiration create that pulls water up from roots?
What does transpiration create that pulls water up from roots?
A suction force through the xylem
How are plants in drier environments adapted regarding stomata?
How are plants in drier environments adapted regarding stomata?
Have fewer stomata