Transport In Plants Flashcards

1
Q

What is the meristem?

A

A layer of dividing cells, here it is called the pericycle

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2
Q

Where are meristem cells found?

A

In the cambium which divide to produce new xylem and phloem cells

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3
Q

What four things do cells regularly need?

A

Oxygen
Water
Minerals
Nutrients

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4
Q

Why do plants need a transport system?

A

To move water and minerals from the roots up to the leaves

To move sugars from the leaves to the rest of the plant

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5
Q

Where is the vascular bundle found?

A

In the centre of a young root

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6
Q

What shape does xylem usually take?

A

An X shape or star shape

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7
Q

What is the special sheath of cells that surround the vascular bundle called?

A

The endodermis

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8
Q

What two types of tissue can b found in plants? And what is their purpose?

A

Collenchyma and sclerenchyma they are used to strengthen

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9
Q

What is cambium?

A

A layer of meristem cells that divide to produce new xylem and phloem

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10
Q

What is a dicotyledonous leaf?

A

A leaf which has a branching network of veins that get smaller as they spread away from the midrib

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11
Q

What must happen in the process of dissecting a plant?

A

Staining

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12
Q

Define dicotyledonous plants.

A

Plants with two seed leaves and a branching pattern of veins in the leaf.

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13
Q

What is meristem?

A

A layer of dividing cells, here it is called the pericycle

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14
Q

What is the phloem?

A

Transports dissolved assimilates

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15
Q

What does vascular tissue consist of?

A

consists of cells specialised for transporting fluids by mass flow.

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16
Q

What does the xylem transport?

A

Water and minerals