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Index
»
GCSE Biology 2
»
6 - Plant Structures and their Functions
»
Absorbing water and mineral ions
level: Absorbing water and mineral ions
Questions and Answers List
level questions: Absorbing water and mineral ions
Question
Answer
Specialized cells in plant roots adapted for the absorption of water and mineral ions.
Root Hair Cells
What is the primary function of root hair cells in plants?
Root hair cells are adapted to absorb water and mineral ions.
Mineral ions are essential for healthy plant growth.
Importance of Mineral Ions
Why do plants need mineral ions?
Plants need mineral ions for healthy growth.
The process by which plants take in water for essential functions like photosynthesis.
Water Absorption in Plants
How do plants absorb water?
Plants absorb water through specialized cells called root hair cells.
Long projections on root hair cells that extend into the soil, providing a large surface area for absorption.
Root Hair Cell Adaptations
Why do root hair cells have long projections?
Long projections increase the surface area of root hair cells, facilitating the absorption of substances from the soil.
The difference in concentration of a substance between two areas.
Concentration Gradient
Why do plants need active transport for mineral ion absorption?
Plants must use active transport to absorb mineral ions because they move against the concentration gradient.
The process requiring energy to move substances against their concentration gradient.
Active Transport
How do plants obtain energy for active transport of mineral ions?
Plants use energy from respiration for the active transport of ions.
The process by which plants absorb water without the need for energy, as it occurs along the concentration gradient.
Water Absorption through Osmosis
Why doesn't water absorption through osmosis require energy?
Osmosis doesn't require energy because there's no movement against a concentration gradient.