Gas Exchange in Plants (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which two processes require gas exchange in plants?
Which two processes require gas exchange in plants?
Respiration and photosynthesis
What happens to gas exchange in plants during darkness?
What happens to gas exchange in plants during darkness?
O₂ diffuses in, CO₂ diffuses out
Why do gases diffuse faster through plant leaves?
Why do gases diffuse faster through plant leaves?
Gases move through air spaces not water
Where are stomata predominantly located on leaves?
Where are stomata predominantly located on leaves?
Lower epidermis
What happens when guard cells become turgid?
What happens when guard cells become turgid?
The stoma opens
How many guard cells surround each stomatal pore?
How many guard cells surround each stomatal pore?
Two
Which mesophyll tissue contains tightly packed cells rich in chloroplasts?
Which mesophyll tissue contains tightly packed cells rich in chloroplasts?
Palisade mesophyll
During photosynthesis, which organelles use carbon dioxide?
During photosynthesis, which organelles use carbon dioxide?
Chloroplasts
Why does the lower stomatal location reduce water loss?
Why does the lower stomatal location reduce water loss?
Avoids direct sunlight exposure
Why don't plants need a circulatory system for gas transport?
Why don't plants need a circulatory system for gas transport?
Simple diffusion through air is sufficient