Transport in Plants

Question 1

All plants do not have _ fluid and a _ system.

Answer 1

interstitial, circulatory

Question 2

Plants need to move water, _, organic nutrients, and _ _ over long distances.

Answer 2

minerals, growth regulators

Question 3

What are the two directions plants transport various substances in?

Answer 3

1) Unidirectional
2) Multidirectional

Question 4

An example of unidirectional transport is the transport of water and _ through the _.

Answer 4

minerals, xylem

Question 5

An example of multidirectional transport is the transport of _ (organic compounds) and mineral _.

Answer 5

photosynthates, nutrients

Question 6

Plant _ and other chemical stimuli are transported in a / manner from where they are _ to other parts.

Answer 6

hormones, polarised, unidirectional, synthesized

Question 7

A _ carries water and _ from roots.

Answer 7

xylem, minerals

Question 8

A _ has a one-way flow of sap.

Answer 8

xylem

Question 9

This consists of a thick cell wall made of lignin.

Answer 9

Xylem.

Question 10

Xylem cells have end walls between them.

Answer 10

False. No end walls.

Question 11

_ vessels carry water and _ from leaves and to other parts of the plant.

Answer 11

Phloem, food

Question 12

Phloem vessels have a - flow of sap.

Answer 12

two, way

Question 13

It has a thin cell wall made of cellulose.

Answer 13

Phloem vessels.

Question 14

Phloem vessels have _ walls and _.

Answer 14

end, perforations

Question 15

It is the evaporative loss of water through the stomata of leaves.

Answer 15

Transpiration.

Question 16

Most of the water in plants is lost through _.

Answer 16

transpiration

Question 17

A _ chloride paper turns from _ to _ upon absorption of water.

Answer 17

cobalt, blue, pink

Question 18

Exchange of _ and _ occurs during transpiration.

Answer 18

O2, CO2

Question 19

Stomata are closed during daytime and open at night.

Answer 19

False.

Question 20

The opening/closing of stomata is due to the _ of the guard cells.

Answer 20

turgidity

Question 21

The inner wall of a guard cell is _ and _, and the outer wall is _.

Answer 21

thick, elastic, thin

Question 22

Cell _ is turgidity.

Answer 22

swelling

Question 23

As the turgidity of guard cells increases, the outer wall _ while the inner wall goes into a _ shape.

Answer 23

bulges, crescent

Question 24

A guard cell’s cellulose microfibrils are oriented _.

Answer 24

radially

Question 25

As turgidity decreases, the stomata _.

Answer 25

closes

Question 26

The lower surface of a dicot leaf has _ _.

Answer 26

more, stomata

Question 27

The amount of stomata on monocot leaves are _ on both surfaces.

Answer 27

equal

Question 28

External factors affecting transpiration: TLHW.

Answer 28

1) Temperature
2) Light
3) Humidity
4) Wind

Question 29

Plant factor affecting transpiration: Number and _ of _.

Answer 29

distribution, stomata

Question 30

Plant factor affecting transpiration: _ status of plant.

Answer 30

Water

Question 31

Plant factor affecting transpiration: Number of _ _.

Answer 31

open stomata

Question 32

Plant factor affecting transpiration: _ structure.

Answer 32

Canopy

Question 33

The transpiration of xylem sap depends on three physical properties…

Answer 33

1) Cohesion
2) Adhesion
3) Surface Tension

Question 34

The three physical properties of xylem transpiration give water high _ _ and _.

Answer 34

tensile, strength, capillarity

Question 35

Capillarity in plants is aided by _ and _ elements.

Answer 35

tracheids, vessel

Question 36

Xylem transpiration supplies water for _.

Answer 36

photosynthesis

Question 37

The forces generated by transpiration creates a pressure that can lift a xylem sized water column over 120 meters high.

Answer 37

False. 130 meters.

Question 38

Uses of transpiration: Creates pull for _ and _.

Answer 38

absorption, transport

Question 39

Uses of transpiration: Supplies _ for _.

Answer 39

water, photosynthesis

Question 40

Uses of transpiration: _ minerals from soil to all _ of the plant.

Answer 40

Transports, parts

Question 41

Uses of transpiration: Cools leaf surfaces by _ - _ by evaporation.

Answer 41

10°, 15°

Question 42

Uses of transpiration: Maintains shape and _ of plant through cell _.

Answer 42

structure, turgidity