2.5 Transport Systems - Plants

Question 1

What are the plant organs

Answer 1

The plant organs are roots, stems, and leaves

Question 2

Name the parts of a leaf structure

Answer 2

The structure of a leaf is upper epidermis, palisade mesophyll, spongy mesophyll, vein (consisting of xylem and phloem), lower epidermis, guard cells and stomata

Question 3

Where do water and minerals enter

Answer 3

Water and minerals enter the plant through the root hair cells and are transported in dead xylem cells

Question 4

Describe the structure of the xylem vessel

Answer 4

Xylem is a tissue consisting of dead, hollowed-out cells that form a system of hollow tubes.

Question 5

Describe the process of transpiration

Answer 5

Transpiration is the evaporation of water from the pores (stomata) on a leaf.

Question 6

How is the transpiration rate affected by wind speed, humidity, temperature, and surface area

Answer 6

Wind speed- As wind speed increases, transpiration rate increases

Temperature- As temperature increases, transpiration rate increases

Surface area- as surface area increases, transpiration rate increases

Humidity- as humidity increases, transpiration rate decreases

Question 7

Where is sugar transported

Answer 7

Sugar is transported up and down the plant in living phloem