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Biology20: Elementary Botany (Lecture) > Transport in plants > Flashcards

Transport in plants Flashcards

1
Q

Three levels of transport in plants

A

Uptake of water by indiv cell, short distance, long distance

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2
Q

Short distance transport

A

Cell to cell

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3
Q

Long distance transport

A

Sap in xylem and phloem

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4
Q

Two types of transport in cellular level

A

Passive, active

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5
Q

Enable plant cells to maintain an internal environmental difference from their surrounding

A

Specific transport proteins

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6
Q

It occurs when a solute molecule diffuses across a membrane due to presence of concentration gradient; no direct expenditure of energy; ex: diffusion and osmosis

A

Passive transport

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7
Q

Happens when there is unequal concentration (greater to lesser)

A

Diffusion

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8
Q

Diffusion of water through a semipermeable membrane

A

Osmosis

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9
Q

Occurs when a solute molecule is moved across a membrane against the concentration gradient; expends metabolic energy; ex: proton pump

A

Active transport

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10
Q

Active transporter in plants

A

Proton pump

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11
Q

Movement of fluid due to pressure or gravity differences

A

Massive/ bulk flow

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12
Q

Diffusion that causes swelling

A

Imbibition

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13
Q

Types of osmosis in a cell

A

Turgid, flaccid, plasmolyzed

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14
Q

These control opening and closing of stomata

A

Guard cells

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15
Q

Closed stomata

A

Flaccid

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16
Q

Open stomata

A

Turgid

17
Q

Three routes water and minerals can travel through

A

Out across and into a cell, apoplast, symplast

18
Q

Passes through the cell wall

A

Apoplast

19
Q

Living part of tissue; plasmodesmata

A

Symplast

20
Q

It is for water retention and control

A

Casparian strip

21
Q

Long distance movement that allows water to move up the xylem

A

Bulk flow

22
Q

Long distance movement depends on:

A

Transpiration pull, cohesion & adhesion, capillary forces, strong cell walls

23
Q

The transpiration cohesion tension mechanism

A

H2O was pulled up by negative pressure, water vapor in airspaces diffuses down its water potential gradient and exits stomata

24
Q

Breaks chain of water molecules

A

Cavitation

Biology20: Elementary Botany (Lecture) (13 decks)

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