Plant Biology Quiz

What is the main function of root hair cells?

• To produce glucose

• To support the plant

• To transport sugars

• To absorb water and mineral ions from the soil

Which feature of root hair cells increases surface area?

• Long and thin shape

• Thick cell wall

• Presence of stomata

• Flat shape

How does water enter root hair cells?

• By osmosis

• By active transport

• By diffusion

• By evaporation

What is required for active transport of minerals into root hair cells?

• Energy from respiration

• High water potential

• Sunlight

• Osmosis

Which mineral ion is used to make proteins and chlorophyll?

• Potassium

• Nitrate

• Calcium

• Magnesium

What does osmosis move through?

• Cell wall

• Stomata

• Partially permeable membrane

• Cytoplasm

Which term describes water moving from high to low water potential?

• Active transport

• Diffusion

• Evaporation

• Osmosis

Why can’t mineral ions enter root hair cells by diffusion?

• They are too small

• They are already at high concentration in soil

• The concentration is lower in the soil than in the cell

• The soil is dry

Which method does not require energy?

• Active transport

• Osmosis

• Pumping ions

• Moving against gradient

What part of the root hair cell stores water?

• Cell wall

• Nucleus

• Vacuole

• Membrane