3.3.2 Water and mineral uptake

• Mineral uptake by plant roots requires ATP energy.


  True
• Both water and mineral uptake are essential for plant growth, development, and survival
• The Casparian strip forces water and minerals to pass through the cell membranes
• Carrier proteins actively pump minerals against their concentration gradient
• The driving force for mineral uptake is the concentration gradient
• What does the root system absorb from the soil?

  Water and nutrients
• Active transport requires ATP energy.


  True
• What is the primary role of the root system in plants?

  Water and mineral uptake
• Osmosis requires ATP energy.

  False
• The Casparian strip forces water to pass through cell membranes
• Arrange the water movement pathway in the root from start to finish:

  1️⃣ Water enters root hairs

  2️⃣ Water forced through Casparian strip

  3️⃣ Water transported upward via xylem
• Water uptake in plants occurs through the process of osmosis
• Which system is the primary site for water and mineral uptake in plants?

  Root system
• What drives water absorption by root hairs from the soil?

  Water potential gradient
• What is the driving force for ion movement in diffusion?

  Concentration gradient
• Sodium and potassium are examples of ions transported by active transport

  True
• Steps in ion uptake through diffusion

  1️⃣ Ions move down their concentration gradient

  2️⃣ No energy (ATP) is required

  3️⃣ Ions reach equilibrium across the membrane
• What type of energy is required for active transport?

  ATP
• What drives the movement of ions in diffusion?

  Concentration gradient
• Diffusion and active transport are both essential for maintaining electrochemical gradients in plant cells


  True
• Soil moisture directly affects water uptake by plants but is not relevant for mineral uptake
• Root hairs increase the surface area for water and mineral absorption


  True
• Aquaporins in roots facilitate rapid water uptake through osmosis
• Water uptake by plant roots occurs through the process of osmosis
• Match the process with its characteristic:

  Water Uptake ↔️ Water Potential Gradient

  Mineral Uptake ↔️ Active Transport
• Root hairs increase the surface area for water and mineral absorption.


  True
• Aquaporins facilitate water movement through osmosis.

  True
• Water moves down a water potential gradient during uptake.


  True
• Match the structure with its function in water and mineral uptake:

  Root Hairs ↔️ Increase surface area

  Casparian Strip ↔️ Prevents leakage

  Aquaporins ↔️ Facilitate water movement

  Carrier Proteins ↔️ Pump minerals against gradient
• The driving force of osmosis is the water potential gradient
• Match the key structure with its role:

  Root Hairs ↔️ Water absorption

  Casparian Strip ↔️ Prevents water leakage

  Aquaporins ↔️ Water channel proteins

  Carrier Proteins ↔️ Active transport of ions
• In osmosis, water moves from an area of high water potential to an area of low water potential
• What is the function of root hairs in water absorption?

  Increase surface area
• Which structure transports water and minerals upwards in the plant root?

  Xylem
• The Casparian strip allows water to leak freely through the root.

  False
• What energy source is required for mineral uptake in plants?

  ATP
• Osmosis requires energy in the form of ATP.

  False
• The Casparian strip ensures water passes through cell membranes
• Active transport requires energy in the form of ATP
• Match the process with its characteristics:

  Diffusion ↔️ Movement down concentration gradient

  Active Transport ↔️ Movement against concentration gradient