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Exam Review 2020 Part 1 Flashcards | StudBud
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Exam Review 2020 Part 1
Exam Review 2020 Part 1
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1
According to Darwin's theory of natural selection, individuals who survive have
variations best suited to the environment
characteristics their parents acquired by use and disuse
characteristics that plant and animal breeders value
the greatest number of offspring
2
Which processes occur during meiosis?
formation of somatic cells
asexual reproduction
crossing-over
production of diploids
3
The cell cycle is the
period of time between the birth and death of a cell
time it takes for one cell to undergo mitosis
time from prophase until cytokinesis
series of events that cells go through as they grow and divide
4
Plants gather the sun's energy with light absorbing molecules called
glucose
pigments
chloroplasts
thylakoids
5
Were those the first 30 questions of your exam?
YES
OOOOHHHH
NO WAY
DUH
6
Which change in DNA will cause a heritable germline mutation?
Thymine dimers form in the DNA of a skin cell due to exposure to UV light
sugar phosphate backbone of DNA in bone cells break
DNA replication error occurs in a sperm-producing cell
7
Unlike photosynthesis, cellular respiration occurs in
animal cells only
all but plant cells
plant cells only
all eukaryotic cells
8
An endangered species is
a group of organisms near extinction
a dangerous predator
all organisms at the top of a food chain
a diseased animal
9
The main function of the cell wall is
support and protect the cell
direct the activities of the cell
store DNA
help the cell move
10
Which is not a goal of science?
derive explanations to make useful predictions
to investigate & understand nature
use data to support a particular point of view
to explain events in nature
11
How many ATPs are made solely from the Electron Transport Chain
4
32
2
36
12
What is happening in a population as it decreases
the birth and death rate reamin the same
the death rate is lower than the birth rate
the death rate becomes higher than the birth rate
the death rate stays the same and the birth rate increases
13
The branch of biology dealing with interactions among organisms and between organisms and their environment
economy
ecology
modeling
recycling
14
Which best explains why a bacterial cell is classified as a prokaryote?
the absence of a cell wall
the absence of a nucleus
the presence of a cell wall
the presence of a nucleus
15
Which statement describes an advantage of sexual reproduction over asexual reproduction
sexual reproduced organisms are more dependent on other organisms
sexual reproduction results in more genetic variation
sexually produced offspring are more dependent on their parents
16
Which of the following is NOT a principle of the cell theory
cells are the basic units of life
all living things are made of cells
all cells are produced from existing cells
very few cells reproduce
17
Sometimes organisms that are not closely related look similar because of
molecular clocks
mutations
reclassification
convergent evolution
18
The domain that contains unicellular organisms that live in extreme environments is
archaea
eukarya
eubacteria
bacteria
19
On the Galapagos Islands, Charles Darwin observed
similar species with traits that suited their particular environment
species completely unrelated to those found in South America
species exactly like those found in South America
completely unrelated species on each of the islands
20
Which of the following is a valid hypothesis for why a plant appears to be dying?
all of the above
not being watered enough
receiving too much sunlight
being watered too much
21
Glycolysis
provides the cell with a net gain of
36 ATP molecules
2 ATP molecules
18 ATP molecules
4 ATP molecules
22
The separation of populations by barriers such as rivers, mountains or bodies of water is called
geographic isolation
genetic equilibrium
temporal isolation
behavioral isolation
23
Unlike mitosis, meiosis results in the formation of
body cells
diploid cells
haploid cells
2n daughter cells
24
The two types of fermentation are called
alcoholic and lactic acid
lactic acid and aerobic
alcoholic and anaerobic
aerobic and anaerobic
25
A granum is a
photosynthetic pigment molecule
stack of thylakoids
stack of chloroplast
membrane enclosing a thylakoid
26
Biodiversity is valuable in the biosphere because it
provides humans with resistance to diseases
gives us interesting things to look at
tells us about any other species
is the biological life-support system of our planet
27
The two main stages of cell division are called
mitosis and cytokinesis
M phase and S phase
mitosis and interphase
synthesis and cytokinesis
28
Cellular respiration uses one molecule of glucose to produce
36 ATP
34 ATP
2 ATP
38 ATP
29
Organisms that cannot make their own food and must obtain energy from the foods they eat are called
heterotrophs
plants
autotrophs
thylakoids
30
Scientist assign each kind of organism a universally accepted name in the system known as
the three domains
binomial nomenclature
cladistics
traditional classification
31
A symbiotic relationship in which both species benefit is
commensalism
mutalism
parasitism
predation