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ENVS 150 Exam 2 > Test 2 > Flashcards

Test 2 Flashcards

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
Q

The outer layer of a root is called teh

A

Epidermis

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26
Q

Teh concept that every cell in a plant has the potential to reproduce the entire plant

A

Totipotency

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27
Q

Which of the following is not a reason to use asexual propagation

A

Allows production of cuttings each with unique characteristics

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28
Q

Two advantage of asexual or vegetative propagation are

A

All offspring are true-to-type and the time to flowering is reduced

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29
Q

To make the canopy of a tree more dense ____ should be used

A

Heading back

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30
Q

Which of the following is not a disadvantage of asexual reproduction

A

Requires more water

31
Q

Which of the following is true about asexual reproduction

A

Younger plants have a higher nitrogen level and lower carbon level

32
Q

Corn plants use C4 photosynthesis and open their stomata during the ___ so that ___ can be fixed into 4C acids.

A

Day, carbon dioxide

33
Q

_______ is the input for the glycolysis system in respiration

A

Glucose

34
Q

Carbon

A

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
Q

The light independent reaction (Calvin cycle) of photosynthesis occurs only when _____

A

The light reaction occurs

36
Q

The color of an object is determined by teh wavelength of light that is _____

A

Reflected

37
Q

The light reaction converts light energy into ___ which provide chemical energy

A

ATP and NADPH

38
Q

____ is the part of a divot leaf that is specialized for gas exchange within the leaf

A

Spongy mesophyll

39
Q

_______ is the flattened, green, expanded portion of a leaf

A

Lamina

40
Q

A sharp modified stem or branch located at the tip of a branch or at a node is referred to as a

A

Thorn

41
Q

To make the canopy of a shrub less dense, _____ should be used

A

Thinning out

42
Q

Which of the following is used to help initiate rooting in a woody plant cutting

A

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
Q

To propagate plants vegetatively the part must regenerate_____

A

Missing parts

44
Q

Which of the folowing contains the greatest amount of stored carbon on earth

A

Oceans

45
Q

The light compensation point is reached when

A

CO2 release is the same as C02 uptake

46
Q

Teh Calvin cycle occurs in the ____ of the chloroplast and uses ATP to generate _____

A

Stroma, glucose

47
Q

Oxygen is a by=product of photosynthesis thesis and is produced by the

A

Light reaction

48
Q

Cacti use CAM photosynthesis adn open their stomata during the _______ so that_____ can be fixed into 4C acids

A

Night, carbon dioxide

49
Q

Which of the following is the function of lenticels

A

Gaseous exchange

50
Q

Monocot leaves have whic of the following vexation patterns

A

Parallel

51
Q

Which type of root system generally maximizes water utilization from resources closer to the soil surface

A

Fibrous

52
Q

What are teh primary plant parts that control excess water loss

A

Stomata

53
Q

A symbiotic relationship. When both organism benefits and neither are harmed or affected is referred to as

A

Mutualism

54
Q

______ is the lateral meristem in stems taht produces xylem and phloem

A

Vascular cambium

55
Q

______ is a chemical pinching agent that overcomes apical dominance

A

Atrinal

56
Q

Which of the following is not a characteristic of rooting media

A

Supplies carbon dioxide to the roots

57
Q

Which of the following is always true when making a. Cutting from an actively growing plant

A

Plant cutting are best when turgid

58
Q

Which of the following defines apomixis

A

Seed produced from maternal tissue without fertilization

59
Q

The amibient level of carbon dioxide in teh atmosphere is ____ compared to the level needed to saturate photosynthesis

A

Lower

60
Q

Which of the following is a layer of waterproof tissue which prevents the movement of water to and from teh vascular cylinder

A

Casparian strip

61
Q

A ______ is a rough area on some stems that serves as a “breathing pore” for gas exchange

A

Lenticel

62
Q

Tendrils are modified _____ that have a ______ function

A

Leaves, support

63
Q

_______ is the final product produced in photosynthesis.

A

Carbohydrates

64
Q

The glycolysis reaction of respiration occurs in the _____

A

Cytosol

65
Q

Fermentation

A

Produces ethanol or lactate and atp from glucose

66
Q

Oxidative phosphorylation

A

All are correct

67
Q

The glycolysis reaction of respiration occurs in the _____

A

Cytosol

68
Q

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

A

Palamate

69
Q

The _____ leaf arrangement has one leaf attached per node staggered along the stem

A

Alternate

70
Q

The bottom part of a graft is called the ______

A

Stock

71
Q

Which of the following steps is generally not followed when making cuttings

A

Foliage may be used to help prop up the cutting in the media

72
Q

Plants that are_____ can sometimes be successfully grafted

A

Genetically related

73
Q

_______ photosynthesis is used by plants from arid or semi-arid environments that open their stomata at night

A

CAM

74
Q

Plants that use the C4 photosynthetic pathway open their stomata_____

A

During the day

ENVS 150 Exam 2 (1 decks)

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