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Bio Final 2 > Ch 29 > Flashcards

Ch 29 Flashcards

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Biology 101 flashcards
1
Q

Function of phloem

A

Moves organic material all through the plant

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2
Q

Apical meristems

A

Tips of roots and shoots

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3
Q

Lateral meristems

A

In gymnosperms and many dicots

Allows an increase in diameter

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4
Q

Meristems

A

Where growth occurs

Where cells continuously divide

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5
Q

Intercalary meristems

A

Base of leaves/stems in grasses

Allows continual growth

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6
Q

Primary growth

A

Growth in length

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7
Q

Secondary growth

A

Growth in diameter

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8
Q

Taproot

A

One main root that grows downward

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9
Q

Fibrous roots

A

Many small roots that grow outward

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10
Q

Adventitious roots

A

Aerial roots- in epiphytes, climbing ivy

Prop roots- in corn

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11
Q

Epiphytes

A

A plant that grows harmlessly on another plant

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12
Q

Function of roots

A

Store carbohydrates, minerals, and water

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13
Q

Function of root hairs

A

Increase surface area

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14
Q

Heartwood

A

Darker, center of stem, dead cells, gets thicker every year

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15
Q

Sapwood

A

Under bark, the living area

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16
Q

Bark

A

Made of cork, cork cambium, and phloem
Dead protective layer
As a tree become wider, the bark splits

17
Q

Annual rings

A

Made of one season of spring wood and one season of summer wood
Rings can identify the age of the tree, the years of heavy rainfall, and years of drought

18
Q

Transpiration

A

Water loss through stomates

19
Q

Cohesion tension theory

A

As water evaporates it pulls on the next water molecule

This brings in minerals with the water

20
Q

Polarity of water

A

Water molecules clump together

21
Q

Simple leaves

A

A single blade

22
Q

Compound leaves

A

Blade is divided into leaflets

23
Q

Guard cells

A

Surround stomates

24
Q

Stomates

A

Gas exchange

Water loss

25
Q

Epidermis

A

Allows protection

Gas exchange

26
Q

Veins

A

Vascular bundles of xylem and phloem

Parallel or net venation

27
Q

Spongy mesophyll

A

Has large air spaces for O2, CO2, and H2O

28
Q

Palisade mesophyll

A

Tightly packed, column shaped, most photosynthesis

29
Q

Function of xylem

A

Transports water up the plant

30
Q

Structure and function of cuticle

A

A thin, waxy layer that covers the upper epidermis of the leaf, preventing the loss of water.

Bio Final 2 (2 decks)

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