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Bio > Plant Tissues > Flashcards

Plant Tissues Flashcards

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Biology 101 flashcards
1
Q

What is a tissue

A

Group of cells with similar structure and specialized to perform a certain function

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2
Q

What are the 5 main types

A

Epidermis, parenchyma, collenchyma and sclerenchyma , xylem and phloem , meristematic tissue

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3
Q

Where is epidermis located

A

Covers surface of plant organs

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4
Q

What is the structure of the epidermis

A

Single layer of tightly packed cells
No intercellular airspace’s
No chloroplasts

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5
Q

2 specialized epidermal cells ?

A

Guard cells
Root hair cells

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6
Q

Function of guard cells

A

Allow gases to enter and exit leaf
Bean shaped

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7
Q

Where is parenchyma located

A

Under epidermis

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8
Q

Structure of parenchyma?

A

Thin walls
Large vacuoles
Large intercellular airspace’s

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9
Q

What is chlorenchyma ?

A

Specialized parenchyma

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10
Q

Where is collenchyma located

A

Under epidermis

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11
Q

Structure of collenchyma ?

A

Irregularly thickened walls in corners
No intercellular airspace’s

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12
Q

What are leaf stalks called

A

Petioles

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13
Q

Where is sclerenchyma located

A

In stem and roots and some fruits and nutshells

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14
Q

Structure of sclerenchyma

A

Evenly thickened cell walls containing cellulose and lignin

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15
Q

2 types of sclerenchyma?

A

Sclerenchyma fibers
Stone cells

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16
Q

What does xylem transport

A

Water and mineral salts

17
Q

What does phloem transport

A

Food

18
Q

What are xylems 2 functions

A

Transport water and mineral salts from roots to plant
Withstand pressure of water and support the plant

19
Q

2 types of xylem cells ?

A

Tracheids
Vessels

20
Q

Structure of xylem

A

Walls thickened with lignin

21
Q

Structure of phloem

A

Sieve tubes and companion cells

22
Q

Location of meristematic tissue ?

A

Tips of roots and shoots and cambium

23
Q

Function of meristematic tissue ?

A

Divide to make more cells
Makes roots and stems grow longer and wider

24
Q

Structure of meristematic tissue ?

A

Tightly packed
Dense cytoplasm

25
Q

What sclerenchyma fiber gives some fruits a gritty texture ?

A

Pears of nuts

26
Q

What are tracheids

A

Cells with overlapping ends that transport water

27
Q

What are are vessels

A

They are joined end to end to transport water

28
Q

What do vessels form ?

A

Continuous tubes that helps water travel up easily

29
Q

What is a sieve plate

A

End walls with small holes in them

30
Q

Function of companion cells ?

A

Controls functions of sieve tubes

31
Q

What does differentiate mean

A

Become specialized to perform specific functions

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