Activities Quiz

Chapter 36: Transport in Vascular Plants

Activities Quiz

1 .

The channels indicated by the pointer, are _____. (Activity: Transport of Xylem Sap)

question #1

gap junctions

desmosomes

tight junctions

mycorrhizae

plasmodesmata

2 .

Which of these are symbiotic associations? (Activity: Transport of Xylem Sap)

root hairs

apoplasts

Casparian strips

mycorrhizae

symplast

3 .

Click on the diagram to start the animation.
This is an animation of the movement of water and ions through the root _____. (Activity: Transport of Xylem Sap)

from cell to cell, across cell membranes and cell walls

via the symplastic route

via a combination of the movement through plasmodesmata and across cell membranes

via the mycorrhizal route

via the apoplastic route

4 .

In roots the _____ forces water and solutes to pass through the plasma membranes of _____ cells before entering the _____. (Activity: Transport of Xylem Sap)

Casparian strip ... ectoderm ... xylem

Casparian strip ... endodermis ... xylem

Casparian strip ... endodermis ... phloem

xylem ... endodermis ... Casparian strip

transpiration ... endodermis ... xylem

5 .

_____ provide(s) the major force for the movement of water and solutes from roots to leaves. (Activity: Transport of Xylem Sap)

Translocation

Bulk flow

Transpiration

Root pressure

Transfer cells

6 .

_____ bonds are responsible for the cohesion of water molecules. (Activity: Transport of Xylem Sap)

Ionic

Hydrogen

Nonpolar covalent

Polar covalent

Peptide

7 .

_____ cells are the cells that regulate the opening and closing of stomata, thus playing a role in regulating transpiration. (Activity: Transport of Xylem Sap)

Tracheid

Casparian strip

Sieve-tube member

Companion

Guard

8 .

Which of these processes is responsible for leaves being considered sugar sources? (Activity: Translocation of Phloem Sap)

catabolism

glycolysis

citric acid cycle

photosynthesis

Krebs cycle

9 .

_____ transport(s) sugars from leaves to, for example, taproots. (Activity: Translocation of Phloem Sap)

Blood vessels

Tracheids

Phloem

Vessel elements

Xylem

10 .

Sugar moves from leaves into the _____ of _____ by _____. (Activity: Translocation of Phloem Sap)

sieve-tube members ... phloem ... active transport

sieve-tube members ... xylem ... active transport

sieve-tube members ... phloem ... diffusion

tracheids ... phloem ... active transport

tracheids ... phloem ... diffusion

11 .

The water pressure that pushes water and sugar from sugar source to sugar sink is referred to as _____. (Activity: Translocation of Phloem Sap)

translocation

bulk flow

transpiration

root pressure

solute pressure

12 .

Water moves into phloem by _____. (Activity: Translocation of Phloem Sap)

root pressure

transpiration

osmosis

endocytosis

active transport

13 .

At a sugar sink, sugar is removed from phloem by _____. (Activity: Translocation of Phloem Sap)

root pressure

transpiration

osmosis

diffusion

active transport

14 .

In a sugar sink, such as a taproot, sugar is converted into _____. (Activity: Translocation of Phloem Sap)

starch

fatty acids

cellulose

glycogen

proteins

15 .

_____ is responsible for the movement of sugars from leaves to taproots; _____ is responsible for the movements of sugar from taproots to leaves. (Activity: Translocation of Phloem Sap)

Transpiration ... transpiration

Bulk flow ... bulk flow

Bulk flow ... root pressure

Bulk flow ... transpiration

Root pressure ... bulk flow