Plant Pathways: Apoplast vs Symplast

What is the primary transport mechanism in the apoplastic pathway?

• Movement through the cytoplasm

• Movement through cell walls and intercellular spaces

• Movement through plasmodesmata

• Movement through the xylem

Which structure is crucial for symplastic transport in plants?

• Xylem vessels

• Phloem sieve tubes

• Plasmodesmata

• Stomata

What role do plasmodesmata play in plant cells?

• They facilitate gas exchange

• They provide structural support

• They allow direct cytoplasmic exchange between cells

• They transport water through the xylem

How does water primarily move through the apoplastic pathway?

• By osmosis

• By diffusion through cell walls

• By active transport

• By capillary action

Which pathway is primarily responsible for the uptake of nutrients in plants?

• Apoplastic pathway

• Symplastic pathway

• Both apoplastic and symplastic pathways

• Neither apoplastic nor symplastic pathways

What is a key difference between the apoplastic and symplastic pathways?

• Apoplastic involves active transport, symplastic involves passive transport

• Apoplastic is faster, symplastic is slower

• Apoplastic bypasses the cell membrane, symplastic goes through it

• Apoplastic is used for nutrient transport, symplastic is used for water transport

In a transverse cross-section of a root, where is the cambium located?

• Between the xylem and phloem

• In the centre of the root

• Surrounding the epidermis

• In the root hairs

What is the function of the cambium in plants?

• To transport water

• To produce new xylem and phloem cells

• To absorb nutrients

• To protect against pathogens

Where is the meristem typically found in plants?

• At the tips of roots and shoots

• In the leaves

• In the flowers

• In the fruit

What is the primary role of the meristem in plants?

• To store nutrients

• To facilitate photosynthesis

• To enable growth by cell division

• To transport water