Plant Biology

  (a)   transports water and some nutrients up from the roots to the rest of the plant. 

• xylem
• phloem
• stoma
• spongy mesophyll

_______ transports sugar, proteins, and other organic materials.

Pores called _____ allow plants to exchange gases for respiration and photosynthesis. 

Tags

NGSS.MS-LS1-6

Transpiration is

• the movement of water through a plant from the roots up the stem
• the loss of water from the leaves of a plant by the process of evaporation
• the flow of water into plant roots by osmosis from the soil
• the process of minerals and sugars moving through plant veins

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Plant loses water through the (a)   . 

• roots 
• stomata 
• chlorophyll
• stem

Cells that control the opening and closing of stomata

• Cuticle
• Guard cell
• Vascular tissue
• Stomata

The Cuticle is a waxy, waterproof layer which reduces the loss of water by evaporation.

Recall which of the following form part of the phloem.

• Sieve-tube elements

• Trachieds

• Vessels

• Companion cells

Phloem tubes are made of (a)   .

• Dead cells
• Living cells

Xylem tubes are made of (a)   .

• Dead cells
• Living cells