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ENVS 150 Exam 2 > Test 2 > Flashcards

Test 2 Flashcards

(74 cards)

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1
Q

Which of the following is not a function of a stem

A

All are functions of a stem

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2
Q

Stomata opening in the epidermis surrounded by two ______ cells.

A

Guard

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3
Q

The bracts the draw attention to the flowers in some plants are modified _____, that have ______ as a function.

A

Leaves, attraction

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4
Q

The distance between 2 terminal buds scars is considered to be a measure of

A

Annual growth

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5
Q

A symbiotic relationship when one organism benefits and the other is not harmed is referred to as

A

Commensalism

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6
Q

In the root, the Casparian strip occurs in the cell walls of the _____ cells

A

Endodermis

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7
Q

The root hairs are extensions of the _____ cells

A

Epidermis

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8
Q

Which of the following does not impact graft compatibility

A

All impact graft compatibility

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9
Q

If a horticulturist puts soil around a node to stimulate root formation, this would be called _____ layering.

A

Air

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10
Q

To propagate plants vegetatively the part must regenerate________

A

Missing parts

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11
Q

Two disadvantages of asexual or vegetative propagation are

A

Few offspring from each parent and requires a lot of labor

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12
Q

Very drastic pruning is called ____ and should be avoided at all times

A

Dehorning

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13
Q

Chlorophyll a mainly absorbs _____ and ______ light

A

Blue and red

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14
Q

In the Carbon Cycle, ____ stored in the atmosphere is converted to _____ by photosynthesis which is then converted to ____ by respiration and released back into the atmosphere.

A

CO2, carbohydrates, CO2

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15
Q

_____ are individual, sack-like membranes that comprise the grana inside chloroplast and contain the chlorophyll necessary for photosynthesis.

A

Thylakoids

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16
Q

During photosynthesis carbon dioxide and water, in the presence of ____ and ____ produce simple sugar and oxygen

A

Sunlight and chlorophyll

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17
Q

Two plants that use the C3 photosynthetic pathway are:

A

Apple and tomato

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18
Q

The input for the Calvin cycle is _____

A

Carbon dioxide

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19
Q

The ____ reaction is the process of building complex molecules, this process often requires energy input and thus is _____

A

Anabolic, endergonic

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20
Q

A symbiotic relationship when one organism benefits and the other is harmed is referred to as

A

Parasitism

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21
Q

Carnivorous plants exhibit leaf modifications allowing them to obtain part of their nutrition from insects. Which of the following is not a method of trapping food used by this type of plant

A

Collapsing

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22
Q

What are the primary plant parts that control excess water loss

A

Stomata

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23
Q

The increase in length of a root is the result of which of the following

A

Both a and b
Cell division
Cell elongation

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24
Q

The leafy complexity in which leaflets attach to a central petiole like your fingers attach to your palm is called

A

Palmately compound

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25
The outer layer of a root is called teh
Epidermis
26
Teh concept that every cell in a plant has the potential to reproduce the entire plant
Totipotency
27
Which of the following is not a reason to use asexual propagation
Allows production of cuttings each with unique characteristics
28
Two advantage of asexual or vegetative propagation are
All offspring are true-to-type and the time to flowering is reduced
29
To make the canopy of a tree more dense ____ should be used
Heading back
30
Which of the following is not a disadvantage of asexual reproduction
Requires more water
31
Which of the following is true about asexual reproduction
Younger plants have a higher nitrogen level and lower carbon level
32
Corn plants use C4 photosynthesis and open their stomata during the ___ so that ___ can be fixed into 4C acids.
Day, carbon dioxide
33
_______ is the input for the glycolysis system in respiration
Glucose
34
Carbon
All are correct Eventually passes through soils Is stored in rivers, lakes, and oceans Cycles continuously between different reservoirs Is released through burning of fossil fuels
35
The light independent reaction (Calvin cycle) of photosynthesis occurs only when _____
The light reaction occurs
36
The color of an object is determined by teh wavelength of light that is _____
Reflected
37
The light reaction converts light energy into ___ which provide chemical energy
ATP and NADPH
38
____ is the part of a divot leaf that is specialized for gas exchange within the leaf
Spongy mesophyll
39
_______ is the flattened, green, expanded portion of a leaf
Lamina
40
A sharp modified stem or branch located at the tip of a branch or at a node is referred to as a
Thorn
41
To make the canopy of a shrub less dense, _____ should be used
Thinning out
42
Which of the following is used to help initiate rooting in a woody plant cutting
All assist with root formation Bottom heat Cutting from a certain age of wood Hormone powder Making the cutting at a certain time of the year
43
To propagate plants vegetatively the part must regenerate_____
Missing parts
44
Which of the folowing contains the greatest amount of stored carbon on earth
Oceans
45
The light compensation point is reached when
CO2 release is the same as C02 uptake
46
Teh Calvin cycle occurs in the ____ of the chloroplast and uses ATP to generate _____
Stroma, glucose
47
Oxygen is a by=product of photosynthesis thesis and is produced by the
Light reaction
48
Cacti use CAM photosynthesis adn open their stomata during the _______ so that_____ can be fixed into 4C acids
Night, carbon dioxide
49
Which of the following is the function of lenticels
Gaseous exchange
50
Monocot leaves have whic of the following vexation patterns
Parallel
51
Which type of root system generally maximizes water utilization from resources closer to the soil surface
Fibrous
52
What are teh primary plant parts that control excess water loss
Stomata
53
A symbiotic relationship. When both organism benefits and neither are harmed or affected is referred to as
Mutualism
54
______ is the lateral meristem in stems taht produces xylem and phloem
Vascular cambium
55
______ is a chemical pinching agent that overcomes apical dominance
Atrinal
56
Which of the following is not a characteristic of rooting media
Supplies carbon dioxide to the roots
57
Which of the following is always true when making a. Cutting from an actively growing plant
Plant cutting are best when turgid
58
Which of the following defines apomixis
Seed produced from maternal tissue without fertilization
59
The amibient level of carbon dioxide in teh atmosphere is ____ compared to the level needed to saturate photosynthesis
Lower
60
Which of the following is a layer of waterproof tissue which prevents the movement of water to and from teh vascular cylinder
Casparian strip
61
A ______ is a rough area on some stems that serves as a "breathing pore" for gas exchange
Lenticel
62
Tendrils are modified _____ that have a ______ function
Leaves, support
63
_______ is the final product produced in photosynthesis.
Carbohydrates
64
The glycolysis reaction of respiration occurs in the _____
Cytosol
65
Fermentation
Produces ethanol or lactate and atp from glucose
66
Oxidative phosphorylation
All are correct
67
The glycolysis reaction of respiration occurs in the _____
Cytosol
68
Maple leaves have _____ venation, which is a finger-like net venation with several major veins originating from the connection of petiole and the leaf blade
Palamate
69
The _____ leaf arrangement has one leaf attached per node staggered along the stem
Alternate
70
The bottom part of a graft is called the ______
Stock
71
Which of the following steps is generally not followed when making cuttings
Foliage may be used to help prop up the cutting in the media
72
Plants that are_____ can sometimes be successfully grafted
Genetically related
73
_______ photosynthesis is used by plants from arid or semi-arid environments that open their stomata at night
CAM
74
Plants that use the C4 photosynthetic pathway open their stomata_____
During the day

ENVS 150 Exam 2 (1 decks)

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