Plant Nutrition - Mineral Absorption Quiz

What is the process called when ions move from a lower concentration to a higher concentration in plant cells?

• Diffusion

• Passive Transport

• Active Transport

• Osmosis

In the Carrier Concept Theory, what is the primary role of carrier molecules?

• To create a concentration gradient

• To store energy

• To bind ions and facilitate their movement across the membrane

• To break down ATP

Which of the following is NOT a type of carrier molecule mentioned in the Carrier Concept Theory?

• Cytochromes

• Lecithin

• Proteins

• Carbohydrates

What creates the electrochemical gradient across the plasma membrane according to the Electrochemical Gradient Hypothesis?

• The movement of water molecules

• The splitting of water molecules and conversion of ATP

• The diffusion of ions

• The synthesis of proteins

How do proton pumps contribute to the electrochemical gradient in plant cells?

• By pumping hydroxyl ions out of the cell

• By pumping hydrogen ions into the cell

• By pumping hydrogen ions out of the cell

• By pumping cations into the cell