Transport in plants

Transport in Plants

Two Transport System in Plants

Lateral section

Xylem vs Phloem

Category

Xylem

Phloem

Transport Substances

Water, minerals

Sucrose, amino acids

Substance movement

One-way

Two-way

Sieve plates

absent

present

Component

Non-living tissue

Living cells

Xylem

•This vessel looks like a long
drain pipe

Lateral section

Cross section

Xylem

Lignin

•A very strong carbohydrate
molecule which makes up the
trunks of trees.

Lateral section

Phloem

•Made by many cells joined end
to end

Sieve plate

Companion cell

Sieve tube

Lateral section

Cross section

Multiple Choice

1. Which of the following tissues in plants is responsible for the transport of water and minerals?
   

• 1. a) Epidermis

• 1. b) Xylem

• 1. c) Phloem

• 1. d) Cortex

Multiple Choice

What is the function of phloem in plants?

a) Transporting water and minerals

b) Providing structural support

c) Transporting sugars and other organic compounds

d) Storing food reserves

• a) Transporting water and minerals

• b) Providing structural support

• c) Transporting sugars and other organic compounds

• d) Storing food reserves

Multiple Choice

Which of the following is the main sugar transported in the phloem of plants?

a) Glucose

b) Fructose

c) Sucrose

d) Starch

• a) Glucose

• b) Fructose

• c) Sucrose

• d) Starch

Vascular Bundle

•Holds the xylem and the phloem
together

Cross section

Vascular Bundle

•Under the microscope

Cross section

Vascular Bundle

C

D

B

A

Xylem

Phloem

Vascular
Bundle

Xylem

Cross section

Vascular Bundle

•Arrangement of transport
vessels in the roots

Cross section

Vascular Bundle

•Low power plan diagram and labeling of
root cross-section

Check Bio book page 165
for all the rules…

Vascular Bundle

•High-powered detail diagram:
parenchyma cells

Check Bio book page 165
for all the rules…

1 ?
2 ?

3 ?

4 ?

Cross section

Vascular Bundle

•Arrangement of transport
vessels in the stem

Cross section

Vascular Bundle

•Monocot vs dicot stem cross-section

Cross section

Vascular Bundle

•Monocot vs dicot stem cross-section

Cross section

Vascular Bundle

•Low power plan diagram and labeling of
stem cross-section

Check Bio book page 165 for all the rules…

Vascular Bundle

•Xylem in lateral section

Lateral section

Vascular Bundle

•High power detail diagram and
labeling of xylem in cross section

Check Bio book page 165
for all the rules…

Vascular Bundle

•Phloem in lateral section

Vascular Bundle

•High power detail diagram and
labeling of phloem in cross section

Check Bio book page 165
for all the rules…

Vascular Bundle
•Leaf Vascular Bundle in cross section

Vascular Bundle
•Leaf Vascular Bundle plan diagram & labelling

Check Bio book page 165
for all the rules…

Cross section

Vascular Bundle

•High-power detail diagram & labelling of leaf
mesophyll layer

Check Bio book page 165
for all the rules…

1 ?

2 ?

3 ?
4 ?

Multiple Choice

Which of the following is the correct order of tissues in the plant stem, from the outside to the inside?

• a) Phloem → Xylem → Cortex → Epidermis

• b) Epidermis → Cortex → Phloem → Xylem

• c) Cortex → Epidermis → Xylem → Phloem

• d) Epidermis → Phloem → Xylem → Cortex

Multiple Choice

Which of the following is responsible for the movement of sugars in the phloem?

• a) Diffusion

• b) Active transport

• c) Osmosis

• d) Transpiration

Multiple Choice

What is the process by which water enters the root cells from the soil called?

• a) Osmosis

• b) Diffusion

• c) Active transport

• d) Transpiration

Multiple Choice

The lower end of a plant stem is placed in water coloured with red dye. After three hours, the stem is cut as shown in the diagram. Which labelled region is stained red?

• a

• b

• c

• d

Multiple Choice

What is transported in the phloem and what is the direction of transport?

• A starch , up and down

• B starch, up only

• C sucrose, down and up

• D sucrose, down only