Transportation in Vascular Plants Flashcards Preview

Principles of Biology II > Transportation in Vascular Plants > Flashcards

Flashcards in Transportation in Vascular Plants Deck (29):
0

This is the physiological process that creates a driving force to pull water through a plant from soil.

Transpiration

1

Water and minerals are transported by ________.

Xylem

2

This is transported by phloem to growing tissues or storage organs.

Sugar

3

This is transport BETWEEN CELLS.

Cellular-level transport

4

This is the movement of materials into or out of a cell DOWN a concentration gradient.

Passive transport

5

This is the passive movement of molecules from areas of HIGH TO LOW concentration.

Simple diffusion (passive transport)

6

This is the SIMPLE DIFFUSION of water through a selectively PERMEABLE MEMBRANE.

Osmosis

7

These are membrane pores formed by proteins.

Channels

8

These are proteins that transport molecules across the plasma membrane.

Transporters

9

This is the movement of materials into or out of the cell against a concentration gradient.

Active transport

10

These create potential energy by way of creating a large membrane potential.

Proton pumps

11

True or False: proton pumps use energy from ____ to pump K+ ions out of the cell.

FALSE, proton pumps use energy from ATP to pump H+ ions out of the cell

12

This is the measurable quantity that includes the side effects of solute concentration and physical pressure.

Water potential

13

Acquisition and transpiration occur at what three scales?

Cellular (between cells)
Short-distance (between tissues and organs)
Long distance (throughout plant)

14

This is the term for when a plant cell's plasma membrane is tightly against the cell wall.

Turgid plant cell

15

This is the term for when a plant cell's plasma membrane is away from the cell wall.

Plasmolyzed plant cell

16

This is the term for when a plant cell's plasma membrane is not tight against the cell wall.

Flaccid plant cell

17

What are the three forms in which SHORT DISTANCE TRANSPORT occurs?

Transmembrane transport
Symplastic transport
Apoplastic transport

18

These are channels that connect cytoplasm of adjacent cells.

Plasmodesmata

19

This is where sugars are produced.

Sugar source

20

The is where sugars are consumed

Sugar sinks

21

This is the export of material from one cell followed by import of the same substance by an adjacent cell.

Transmembrane transport

22

This is the movement of a substance from the cytosol of one cell to the cytosol of an adjacent cell by way of the plasmodesmata

Symplastic transport

23

This is an entire network of cytosols and plasmodesmata.

Symplast

24

This is the continuum if cell walls and intercellular spaces.

Apoplast

25

This is the thin cylinder of tissue that forms a barrier between the cortex and central core of vascular tissue.

Endodermis

26

These are ribbon-like strips of suberin located in endodermal cells.

Casparian strips

27

The mass movement of liquid as a result of gravity, pressure or both.

Bulk flow

28

This is the loading of sugar into sieve tubes by way of active transport.

Phloem loading