Plant Transport Systems Flashcards

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1
Q

Why is water required?

A

For photosynthesis and maintenance of the plant

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2
Q

What is the purpose of the xylem and two other facts?

A

Transport minerals and vitamins
Hollow
Made up of dead cells

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3
Q

Why is lignin in the xylem?

A

For support to withstand changes in pressure as water moves through the stem

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4
Q

What is the purpose of the phloem and 3 other facts?

A

To transport food from photosynthesis all around the plant
Made of live material
Contains end walls
Has companion cells

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5
Q

What can excess glucose be used for?

A

Starch, cellulose and energy

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6
Q

What are root hairs?

A

Microscopic structures

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7
Q

Why do root hair have projections?

A

To increase the amount of area allowed to absorb water

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8
Q

What is transpiration?

A

The loss of water through leaves

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9
Q

How is water transported?

A

From the soil up through the stem to be used in photosynthesis and maintenance of the plant

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10
Q

Describe the uptake and movement of water through the plant

A

Water is taken up from the soil into the roots through osmosis
Water is passed up the xylem
Drawn into the leave through osmosis
Water evaporates into air sacs in the leaf
Water moves out if the leaf into the air through the stomata

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11
Q

Describe the structure of the leaf

A
Waxy cuticle
Upper epidermis
Palisade mesophyll cells
Spongy mesophyll cells
Lower epidermis
Stomata
Guard cells
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