Multicellular Organisms: Transport in Plants

Question 1

What is the structure of a leaf?

Answer 1

Waxy cuticle
Upper Epidermis
Palisade Mesophyll (MAIN PHOTOSYNTHETIC LAYER)
Spongy Mesophyll
Lower Epidermis
Stomata + Guard Cells

Question 2

By what process does water enter plants?

Answer 2

osmosis

Question 3

What cells absorb the water in the plant?

Answer 3

Root hair cells

Question 4

What vessel transports water and minerals?

Answer 4

Xylem vessels

Question 5

What mineral supports xylem vessels?

Answer 5

Lignin

Question 6

Are xylem alive or dead?

Answer 6

Dead

Question 7

Why does water need to be transported by the plant?

Answer 7

So it can be used for plant processes such as photosynthesis and transporting materials.

Question 8

What is transpiration?

Answer 8

The evaporation of water through the stomata.

Question 9

What 4 factors affect transpiration?

Answer 9

Inc temp -> Inc transpiration
Inc wind speed -> Inc transpiration
Inc surface area -> inc transpiration
Inc humidity -> dec transpiration

Question 10

What vessels transport sugar in the plant?

Answer 10

Phloem

Question 11

What is the direction of transport in phloem?

Answer 11

Mainly down

Question 12

Is phloem alive or dead?

Answer 12

Alive

Question 13

What is the structure of phloem?

Answer 13

Beside the sieve cells (pores), there are companion cells. Phloem cells have strands of cytoplasm to transport sugar.