BIOLOGY Flashcards

1
Q

Recite biological organization and order

A

Biosphere -> Ecosystem -> Community -> Population -> Organism -> Organ System -> Organ -> Tissue -> Cell

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2
Q

Known as the regulatory mechanism to maintain an organism’s internal environment

A

Homeostasis

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3
Q

Recite the order of classifying organisms

A

Domain Kingdom Phylum Class Order Family Genus Species

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4
Q

Formatting of scientific names

A

Genus and species always italicized or underlined if cannot be italicized. First letter of genus is capitalized while everything else is lowercase

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5
Q

Identify type of plant cell:

Has thin primary wall
Metabolically active
Active at maturity

A

Parenchyma

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6
Q

Identify type of plant cell

Has unevenly thickened primary wall
Metabolically active
Active at maturity

A

Collenchyma

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7
Q

Identify type of plant cell

Have primary and secondary walls
Dead at maturity

A

Sclerenchyma

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8
Q

Identify type of plant cell

Most common type
Constitutes soft parts of the plant

A

Parenchyma

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9
Q

Identify type of plant cell

Provide plastic support
For shoot tips that require flexibility

A

Collenchyma

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10
Q

Identify type of plant cell

Provide elastic support
Provide tracheary elements for water transport

A

Sclerenchyma

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11
Q

Plant Organ

Anchors vascular plant
Absorb mineral and water

A

Root

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12
Q

Two Main Systems of Root

A

Taproot and Fibrous

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13
Q

Root system

Common in plants with two cotyledons and plants with naked seeds

A

Taproot system

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14
Q

Root system

Common in monocots like grasses, described as adventitious

A

Fibrous system

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15
Q

Root system

Has a main vertical root that gives rise to lateral root
Has an embryonic origin

A

Taproot system

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16
Q

Root system

Small roots that emerge from the stem, forming a mat

A

Fibrous system

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17
Q

Plants with seeds that have two cotyledons

A

Eudicot

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18
Q

Plants with naked seeds

A

Gymnosperms

19
Q

Used to describe a plant organ growing from an unusual location

A

Adventitious

20
Q

Plant Organ

Raises or separates leaves to expose to sunlight
Raises reproductive structures such as fruits and flowers

21
Q

Parts of Stem

Where leaves are attached

22
Q

Parts of the Stem

Segments between nodes

A

Internodes

23
Q

Parts of the Stem

Structures in the axil formed by leaf and stem. Grows into a branch

A

Axillary bud

24
Q

Plant Organ

Main photosynthetic organ

25
Two general parts of a leaf
Flattened blade Petiole (stalk)
26
Arrangement of Vein Common for monocots
Parallel
27
Arrangement of Vein Common for eudicotd
Branched
28
Enumerate Spatial Arrangement of Leaves
Simple Compound
29
Spatial arrangement of leaves Has a single undivided blade
Simple
30
Spatial arrangement of leaves Blade with multiple leaflets, leaflet has no axillary bud at base
Compound
31
Venation of Leaves Define arcuate, longitudinal, pinnate
Arcuate - bending toward apex (like an arc) Longitudinal - aligned along long axis of leaf (may still intersect) Pinnate - secondary veins paired oppositely
32
Venation of Leaves Define cross-venulate, palmate, reticulate
Cross-venulate - Small veins connecting secondary veins Palmate - Primary veins emerge from a point Reticulate - Smaller veins form a network
33
Venation of Leaves Define dichotomous, parallel, rotate
Dichotomous - Branching symmetrically in pairs Parallel - Arranged axially, never intersecting Rotate - Veins radiating
34
Plant Hormone Enumerate Auxin (AA) major functions
Stimulates stem elongation (at low concentrations) Promote formation of lateral and adventitious roots Regulates fruit development Enhances apical dominance Promotes vascular differentiation Slows leaf abscission Phototropism Gravitropism
35
Plant Hormone Enumerate Cytokinin functions
Regulates cell division in shoot and root Promotes lateral bud growth Promote movement of nutrients into sink tissues Stimulate seed germination Delay leaf senescence
36
Plant Hormone Enumerate Gibberellins function
Regulate sex determination and transition from juvenile to adult phase Stimulates: stem elongation, pollen development, pollen tube growth, fruit growth, seed development germination
37
Plant Hormone Enumerate Brassinosteroids function
Promote cell expansion and cell division in roots Promote root growth (low concentration) and inhibit root growth (high concentration) Promote xylem differentiation Inhibit phloem differentiation Promote seed germination Promote pollen tube elongation
38
Plant Hormone Enumerate Abscisic Acid (ABA) function
Inhibit growth Promote stomatal closure during drought stress Promote seed dormancy Inhibit early germination Promotes leaf senescence Promotes desiccation tolerance
39
Plant Hormone Enumerate Ethylene function
Promote fruit ripening Promotes leaf abscission Promote Triple Response: Inhibit stem elongation, Promote lateral expansion and horizontal growth Enhance rate of senescence Promote root and root hair formation
40
Location of Plant Hormone Most parts of the plant in gaseous form
Ethylene
41
Location of Plant Hormone In all plant cells (Clue: 2 hormones)
ABA and Brassinosteroids
42
Location of Plant Hormone Meristems of apical buds and roots Young leaves Developing seeds
Gibberellins
43
Location of Plant Hormone Roots
Cytokinin
44
Location of Plant Hormone Shoot apical meristems Root apical meristems Young leaves Developing seeds and fruit
Auxin