Transport and Absorption - 2

Question 1

Structure of Xylem

Answer 1

• Dead Tissue
• Hollow Tubes
• Rings of lignin for support

Question 2

Structure of Phloem

Answer 2

• Living Tissue
• Sieve Tubes transport sugar
• Sieve Plates allow rapid transport of sugar
• Companion Cells provide energy for the sieve cells
• Strands of cytoplasm - help move sugar from one
  sieve-tube to another.

Question 3

Transpiration

Answer 3

• The loss of water by evaporation from the leaves of a

plant is called transpiration.

Question 4

Transpiration can be measured by?

Answer 4

• Weight potometer​

- Bubble potometer