Quiz on Plant Transport Systems

What is the transport system in vascular plants called?

• Vascular system

• Circulatory system

• Nervous system

• Digestive system

Which structure transports water and minerals in plants?

• Phloem

• Leaves

• Roots

• Xylem

What does the phloem transport?

• Water

• Oxygen

• Sugars

• Carbon dioxide

What are the specialized cells in xylem called?

• Vessels

• Sieve tubes

• Companion cells

• Guard cells

Why can water flow easily in the xylem?

• Vessels are filled with cytoplasm

• Vessels lose their end walls forming hollow tubes

• Vessels are closed at both ends

• Vessels have thick walls

Why do sieve tubes need companion cells?

• They lack chlorophyll

• They are filled with starch

• They have no nucleus

• They lose their cell wall

Through which cells do water and minerals enter a plant?

• Root tip cells

• Root hair cells

• Guard cells

• Companion cells

Water enters root hair cells by:

• Diffusion

• Osmosis

• Active transport

• Translocation

Minerals can enter root hair cells by:

• Diffusion

• Active transport

• Osmosis

• Both a and b

What is active transport?

• Movement of substances without energy

• Movement of substances against concentration gradient using energy

• Movement of water only

• Passive movement of particles