Biology KSSM Form 5 [Chap. 4]

What is the two main tissues in the transport system of plants?

• xylem

• meristem tissue

• mesophyll cell

• phloem

The cell sap of root hair cells is _________ to the surrounding soil water.

• hypotonic

• hypertonic

The movement of water molecules in xylem vessels is assisted by ____________ .

• transpirational pull

• capillary action

• root pressure

• transpiration

Water evaporates from the leaves through stomata during __________ .

• transpiration

• guttation

• day

• night

What are the similarities of guttation and transpiration?

• water is secreted in the form of liquid

• occur through leave

• cause loss of water from plants

• occurs under humid condition

Which of the following is true about structure X?

• transport sugars from leaves to roots

• transport water and mineral from roots to leaves

• transport water and sugars from roots to leaves

• transport water from leaves to roots

• I and II

• II and III

• III and IV

• I and IV

• P : Sieve tube Q : Phloem vessel

• P : Companion cell Q : Phloem vessel

• P : Sieve tube Q : Xylem vessel

• P : Companion cell Q : Xylem vessel

Which of the following assists in the movement of water up the stem of the tree?

• presence of many mitochondria in xylem vessels

• narrow xylem vessels

• active transport of water from roots to leaves

• wilting of leaves

How do leaves of a plant contribute to movement of water in plant?

• intake of carbon dioxide for photosynthesis

• absorption of sunlight by chlorophyll

• production of glucose by photosynthesis

• loss of water vapour by evaporation