Plant Systems Flashcards

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1
Q

Dermal Tissue

A

Type of plant tissue; includes cuticle, stomata, guard cells, and trichomes.

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2
Q

Vascular Tissue

A

Type of plant tissue; Cells specialized for conducting materials throughout the plant; includes xylem and phloem.

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3
Q

Ground Tissue

A

Type of plant tissue; Makes up bulk of a young plant; Fills up the space between the dermal and vascular tissues; Contains most of internal, nonvascular regions

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4
Q

Meristem Tissue

A

Type of plant tissue; Only regions that are able to divide by cell mitosis; 2 types: Apical Meristems & Lateral Meristems

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5
Q

Cuticle

A

Covers the outer surface with a waxy, transparent layer

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6
Q

Stomata

A

On lower surface of leaf; Small holes that allow gases and water vapour in and out of leaf

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7
Q

Guard Cell

A

Two-bean shaped structures that control the size of the stomata

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8
Q

Trichomes

A

“hairs”; usually appear on all plant parts; function: absorption, protection and secretion

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9
Q

Xylem

A

Carries water & dissolved ions up from roots to other plant parts; When matures it is a non-living duct, oriented end to end, the length of the plant

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10
Q

Phloem

A

Transports sugars synthesized in leaves throughout the plant down to the root for storage; Contains sieve tubes and companion cells

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11
Q

Sieve tube

A

vertically stacked cells with perforated end walls, no nucleus
allows easy passage of water and food materials throughout plant

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12
Q

Companion Cell

A

Lie next to sieve element and carry out cellular functions of sieve tubes

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13
Q

Apical Meristem

A

causes primary growth (lengthening); occurs at tips of shoots and roots; produces new leaves and flowers

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14
Q

Lateral Meristem

A

causes secondary growth (widening); occurs at the cambium; produces bark on trees.

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15
Q

Epidermis (epidermal tissue)

A

the outer layer of the root and contains root hairs

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16
Q

Palisade Mesophyll

A

contains chloroplasts for photosynthesis

17
Q

Chloroplast

A

the site for photosynthesis

18
Q

Spongy Mesophyll

A

has air spaces for diffusion

19
Q

Air space

A

The site for diffusion within the plant