Transport of Water and Minerals (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
15 questions from this quiz
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Practise the questions
15 questions from this quiz
Which mineral is essential for chlorophyll formation in plants?
Which mineral is essential for chlorophyll formation in plants?
Magnesium
What is calcium needed for in plant cells?
What is calcium needed for in plant cells?
Formation of the middle lamella
Active transport moves substances from an area of ___ concentration to ___ concentration.
Active transport moves substances from an area of ___ concentration to ___ concentration.
low; high
Which adaptation do root hairs NOT have for absorbing water?
Which adaptation do root hairs NOT have for absorbing water?
A thick waxy cuticle
Why is root pressure alone not enough for very tall plants?
Why is root pressure alone not enough for very tall plants?
It cannot push water to the tops
Who proposed the cohesion-tension model in 1894?
Who proposed the cohesion-tension model in 1894?
Henry Dixon and John Joly
What is cohesion in water molecules?
What is cohesion in water molecules?
Attraction between similar molecules
What is the most important factor in moving water to the tops of tall plants?
What is the most important factor in moving water to the tops of tall plants?
Transpiration
What strengthens xylem walls to prevent them from collapsing under pressure?
What strengthens xylem walls to prevent them from collapsing under pressure?
Lignin
Where are stomata typically found on leaves?
Where are stomata typically found on leaves?
On the undersurface
What does NOT control the opening and closing of stomata?
What does NOT control the opening and closing of stomata?
Light
When do low CO₂ levels stimulate stomata to open?
When do low CO₂ levels stimulate stomata to open?
During daytime
What happens when guard cells become turgid?
What happens when guard cells become turgid?
The stoma opens
What are nitrates needed for in plants?
What are nitrates needed for in plants?
DNA replication
How is oxygen excreted from plants?
How is oxygen excreted from plants?
Through stomata of leaves