Question

One of the ways that plant systems and tissues work together is in the transport of materials such as water, called transpiration. In transpiration, water is taken into the plant and then evaporates out of the leaves. First, water is taken in through pores in the dermal tissue of the roots and brought to the xylem of the vascular tissue. The vascular tissue then transports it up through the stem and into the leaves. Once in the parenchyma cells of the ground tissue of the leaves, photosynthesis and cellular respiration occur, using that water. The water is then released through guard cells of the dermal tissue into the atmosphere.

Which of the following tissues and systems were involved in transpiration? Check all that apply.

roots

stem

leaves

dermal tissue

vascular tissue

ground tissue

Answer 1

All of them.

- Roots — take up water through dermal pores (root hairs).
- Stem — vascular tissue (xylem) transports water upward through the stem.
- Leaves — site of evaporation and gas exchange.
- Dermal tissue — includes root epidermis (uptake) and guard cells in the leaf (release).
- Vascular tissue — xylem conducts water.
- Ground tissue — leaf parenchyma stores water and carries out photosynthesis before water is lost.