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Biology II Lab > Quiz 4 > Flashcards

Quiz 4 Flashcards

1
Q

3 organs of the plant body

A

Stems
Leaves
Roots

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2
Q

2 major groups of Angiosperms

A

Eudicots

Monocots

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3
Q

Eudicot

A
  • 250,00 species

• are angiosperms in which the embryo possesses 2 cotyledons (seed leaves)

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4
Q

Monocots

A
  • 60,000 species

• has only one cotyledon (seed leaf)

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5
Q

Comparison of eudicots & monocots

  • root
  • veins
  • flower parts
  • pattern of vascular bundles
  • root xylem / phloem patterns
A

Dicots

  • taproot
  • net like veins
  • flower parts in multiples of 4 or 5
  • ringed vascular bundles around outer part of stem
  • root phloem between xylem arms

Monocot

  • fibrous root
  • parallel veins
  • flower parts in multiples of 3
  • vascular bundles throughout stem
  • root xylem / phloem in a ring
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6
Q

Primary growth (4)

A

= Elongation of plant organs
• root, stems, and leaves
• all plants
• produces primary tissues ( from SAM & RAM)

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7
Q

Primary Tissues

A
  • primary xylem
  • primary phloem
  • epidermis
  • parenchyma
  • collenchyma
  • sclerenchyma
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8
Q

Primary Xylem

A

Vascular/conducting tissues - water and minerals

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9
Q

Primary Phloem

A

Vascular/conducting tissues - food and solutes

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10
Q

Epidermis

A

Dermal (outer most)tissue - protection

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11
Q

Parenchyma (3)

A

Most abundant type - storage

part of cortex/pith

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12
Q

Collenchyma

A

Protection/support of plant body organs - cortex

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14
Q

Sclerenchyma

A

Protection/support of non-elongating organs - cortex

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15
Q

Secondary Growth (4)

A

= Expansion of plant organs (increased in diameter)

  • roots and stems (NO LEAVES)
  • NOT ALL PLANTS
  • produce secondary tissues (Woody tissues)
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16
Q

Periderm

A

Outer bark

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17
Q

Secondary xylem

A

Wood

18
Q

Secondary phloem

A

Inner bark

19
Q

Root functions

A
  • Absorb water and minerals
  • anchoring the plants in soil
  • storing nutrients and water
  • primary growth
  • MAY have secondary growth
20
Q

Radicle

A

When a seed germinates, the primary root (the radicle) grows out and downward

21
Q

Shoot system (4)

A
  • consists of stems and leaves
  • primary growth
  • MAY have secondary growth
  • stems function in transport of water / minerals / solutes through the plant and positioning the leaves for maximum exposure to sunlight
22
Q

Leaves (2)

A
  • PRIMARY GROWTH ONLY

- function in photosynthesis & transpiration

Biology II Lab (11 decks)

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