Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

ENVS Exam 3 > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

Which of the following situations results in limited fruit sets

A

All are reasons for limited fruit sets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of these is an aspect of sexual reproduction

A

All are correct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

In a dicot seed, the largest part of the seed being a pair of modified leaves full of stored food

A

Cotyledons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What process allows a Venus fly trap to catch insects when they land on them

A

Osmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What term is used for a stimulus like a hormone that come from inside of the plant

A

Endogenous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What term is used for a stimulus like light that comes from outside of the plant

A

Exogenous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the term for rapid evolution that results of many species from a single ancestor when islands are colonized

A

Adaptive radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of these is not part of the double fertilization in plants

A

4 Endosperm Nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which plant hormone protects plants from drought stress by causing the stomata to close when the soil starts to get dry

A

Abscisic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which methods are not used by plants to protect themselves against pathogens and herbivores

A

Become dormant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The main stalk of an inflorescence is called

A

Peduncle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

________ is the number of replicate chromosomes present in the nucleus of a cell

A

Ploidy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

______ is a stage in seed germination

A

Imbibition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The concept of survival of the fittest is based on the assumption that

A

Natural selection favors individuals which are best adapted and will reproduce in greatest numbers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Blue light receptors trigger the following

A

All are correct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

_____ is the formation of a fruit without seeds

A

Parthenocarpic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which hormone is important in ripening fruits and aging of flowers

A

Ethylene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The acid growth hypothesis refers to the following

A

The role of auxin in loosening cell walls through acidification and explanation activation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Sweet brightly colored flowers with long floral tubes are most likely to use pollination by

A

Butterflies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What an organism looks like is determined by its genetic makeup and the effects of the environment and is called teh

A

Phenotype

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

______ is the most common type of seed dormancy

A

Quiescence due to lack of water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Systemic acquired resistance

A

Occurs in response to an attack on the plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Bright red or yellow odorless flowers with long floral tubes are most likely to use pollination by

A

Birds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

A _____ consist of a stigma, a style and an ovary

A

Pistil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Which of the following is the most likely method of seed dispersal for a kernel of corn
Gravity
26
What hormone can be used as an herbicide at high concentrations
Auxins
27
What kind of experiments did Darwin & Darwin devise to study the effect of light on plant growth
All were used
28
In the genetic code, the following are teh two correct bonding pairs of nuclei acids in DNA
Adenine-thymine, guanine-cytosine
29
All sepals of a flower are called the
Calyx
30
The hormone auxin causes the following responses
All are correct
31
Which hormone stimulates shoot elongation and bolting in plants
GA
32
Which hormone promotes apical dominance in plants
Auxin
33
Which hormone stimulation defense responses in stressed plants
Ethylene
34
When a diploid organism has 2 alleles that are different it is called ____ for that characteristic
Heterozygous
35
Speciation occurs because of
All are correct
36
When a diploid organism has 2 allies that are the same it is called _____ for that characteristic
Homozygous
36
What is the gene pool of a population
All alleles of all individuals of a population
37
What is the term for two species that look the same but come from different ancestors
Convergent evolution
38
The type of dormancy exemplified by temperate woody plants can be broken by
Stratification
40
A rose flower contain petals, sepals, stamens and a pistil. Therefore, it can be described as being _____, and _______
Complete and perfect
41
A plant that bears both male and female flowers on the same plant is referred to as
Monoecious
42
Sweet, blue, or yellow flowers with nectar are most likely to use pollination by
Bees
42
Polyploidy is NOT
Common in animals
43
When a flower has sepals, and petals and stamens but is missing a pistil, it is referred to as
Imperfect and staminate
45
Peas were good plants for Mendel to study the inheritance of traits because
All answers are correct
45
If in a population of lizards the small one survive extreme drought better that the large ones and produce more small-sized lizards in the following years, what type of natural selection is this
Directional selection
46
Which of the following describes the study of evolution
How life forms changed over millennia/ how organisms continue to change
48
What is the term for when the gene pool of a population changes because when individual with certain phenotypic characteristics are preferred
Nonrandom mating
48
Which applies to climacteric fruit
Burst of ethylene synthesis followed by high cellular respiration
49
Which chemical in the plant allows for the measurement of day length
Phytochrome
50
Which of these is a response to brassinosteroids
All are correct
51
Biopharming is plant breeding to produce
Genetically modified plants that mass produce pharmaceuticals
52
In a seed, the ____ is the new primary root of the new plant
Radicle
53
A fruit formed when the receptacle becomes fleshy and the seeds attach to the surface of the fruit (like a strawberry) is classified as
Accessory fruit
54
A protein is a chain of
Amino acids
55
What is the term for when the gene pool of a population changes because individuals are moving among populations
Gene flow
56
The growth response to light is called
Phototropism
58
Transfer RNA brings amino acids to the ribosomes where they are assembled into a
Protein
59
Small dull odorless flowers are most likely use pollination by
Wind
60
Which is the following is/are part of a hypersensitive response in plants
All are correct
61
Which statement is not correct for plant hormones
Always move in the xylem
61
All petals of a flower are called the ___-
Corolla
62
A plant is not affected by photoperiod is
Day-neutral
63
What treatment during the night can trick a plant to experience long days when days are short
Exposure to white light
64
Which of the following statements best describes evolution
Evolution is a change in allele frequency from one generation to the next
66
Which is not a factor causing evolution
Acclimation
66
In a monocot seed, the largest part of the seed full of stored food
Endosperm
67
Chromosomes
All are correct
68
The flower color of hydrangeas is affected by
Soil acidity and aluminum content
69
A fruit formed from several ovaries produced by a single flower that share a receptacle (like a blackberry) is referred to as
Aggregate fruit
70
In a seed, the _____ becomes the first new leaves of the new plant
Plumule
71
Inheritance patterns dont always follow Mendel's principles becuase
A character can be controlled by more than one gene
72
______ is the deposition of pollen on the stigma
Pollination
73
A ______ is the length of DNA that codes for teh production of a protein or protein subunit
Gene
74
The juicy fleshy part of an orange that you can eat is the _____
Endocarp
76
The kiwi vine exhibit an imperfect flower type and pistillate and staminate flowers appear on separate plants therefore it is a ____ plant
Dioecious
76
Mendels law of inheritance included
All are included
77
A pecan tree has separate pistillate and staminate flowers, and they both occur on the same plant. Therefore, a pecan tree is____
Monoecious
78
A plant that flowers when the nights get longer
Short-day
79
A plant that flowers when the nights get shorter
Long-day
80
The type of dormancy exemplified by the hard seed coat of seeds like lotus can be broken by
Scarification
82
Thigmotropism is
The plants response to touch or mechanical stimuli
83
Which of the following is most likely the mode of seed dispersal for a grass burr
Animal coat
84
Which of the following strategies is NOT part of plant breeding
Incomplete dominance
85
Which of theses is an aspect of asexual reproduction
None are correct
86
What hormone can be used in the greenhouse and in tissue culture to stimulate adventitious shoot formation
Cytokinins
88
Transfer RNA brings main acids to ribosomes where they are assembled into a
Protein
88
A _______ consist of a filament and an anther
Stamen
90
A cross between two heterozygous plants produces the following phenotypic ratio of dominant to recessive
3:1
91
What is the correct order in which a hormone activates a response in the cell
Hormone, reception, transduction, response
91
What is the term for a naturally occurring, organic compound that affects physiological processes at low concentrations
Hormone
93
Which hormone induces seed germination, fruit set and growth in plants
GA
94
Which of the following gen types where W means dominant white flower will NOT have the white flower color
ww
95
White musky flowers which open at night are most likely to sue pollination by
Bats
95
Hybrids are a cross between
Two plants with different characteristics
96
Which of these is an aspect of vegetative reproduction
None are correct
97
What is a segment of DNA that codes for a specific protein
Gene
98
How can a plant protect itself from intruders
All are correct
99
What is a segment of DNA that codes for a specific protein
Gene

ENVS Exam 3 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions