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EOC Review
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Review questions for the Missouri EOC
Flashcards
53 cards
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Practice quiz
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Questions
53
Answers
1
RNA and DNA are which type of organic compound?
carbohydrate
protein
lipid
nucleic acid
2
According to fossil records, horse bones 50 MYA were much smaller. Why are they bigger now?
Commensalism
Inbreeding
Migration
Natural Selection
3
Due to insecticides, cricket population decreases. Which population is most affected by this?
Mouse
Frog
Hawk
Grass
4
Suppose that a freshwater plant is mistakenly put into saltwater. Which process will occur?
Water will move into plant causing it to swell
Nothing will occur
Salt will move out of the plant, causing it to swell
Water will move out of plant, causing the plant to shrink
5
Which property of water allows it to be a good buffer for body temperature?
High Heat Capacity
Turgidity
Capillarity
Surface Tension
6
What are the genotypes of the parents if they have 78 purple and 22 white flower offspring?
Pp x Pp
Pp x pp
PP x PP
PP x pp
7
Which of the following is sexual?
budding
meiosis
mitosis
regeneration
8
The American Buffalo has cells w/ 60 chromosomes. How many chromosomes would be in the gametes?
60
120
20
30
9
A cell's ribosomes are destroyed. Which process would be affected by this?
Protein Synthesis
Osmosis
Cellular Respiration
Photosynthesis
10
What are the reactants of photosynthesis?
Carbon Dioxide, Water, LE
Water, Oxygen, LE
Carbon Dioxide, Glucose, ATP
Glucose, Oxygen, ATP
11
Which process is an example of asexual reproduction?
Female fish deposits eggs & male fish releases sperm on them
A bacteria divides in half to form two bacteria cells.
Earthworms exchange sperm
A bee transferring pollen from one plant to another plant
12
Freckles are dominant. A no freckled woman marries a heterozygous man. Children genotypes?
75% Ff: 25% ff
50% Ff: 50% ff
100% Ff: 0% ff
0% Ff: 100% ff
13
What are the sex chromosomes of a normal male?
XY
XXX
XXY
XX
14
In which way are Photosynthesis (P) and Cellular Respiration (CR) different?
P releases energy, while CR requires energy
P uses carbon dioxide, while CR produces carbon dioxide
CR stores ATP, while P releases ATP
CR produces oxygen, while P uses oxygen
15
What will happen if the appropriate enzyme is added to a chemical reaction?
The reaction rate would increase
The reaction rate would decrease
The reaction will stop
The reaction rate will remain the same
16
Which best explains why a bacterial cell is classified as prokaryotic?
presence of cell wall
presence of nucleus
absence of nucleus
absence of cell wall
17
A plant has diploid number 12. How many chromosomes would be found in a new leaf on the plant?
0
12
24
6
18
Membranes are essential to life processes. Which of the following best defines a membrane?
Membranes are the sites of energy transformations
Membranes are impermeable barriers
Membranes are selectively permeable
Membranes are cellulose bilayers
19
Water is often called the "universal solvent". Why is important for water to dissolve material?
Water heats slowly.
Allows small insects to walk on water.
Water is not important to life.
Water provides a soluble environment for chemical reactions
20
What process produces many variations in phenotypes?
Asexual Reproduction
Regeneration
Cloning
Independent Assortment
21
What tool can most accurately determine the volume of a sample of water?
balance/scale
ruler
graduated cylinder
thermometer
22
DNA codes for proteins. What accounts for the "code" in the DNA?
Sequence of bonds.
Sequence of nitrogen bases.
Order of amino acids.
Ribosome sequence.
23
Which of these is an advantage of sexual reproduction?
It ensures no variation within a population
It creates offspring that are identical to the parents
It creates offspring that are superior than the parents
It creates variation within a population
24
Which correctly describes a major difference between a plant cell and an animal cell?
An animal cell has mitochondria & plant cell does not.
A plant cell has chloroplast & an animal cell does not.
An animal cell has cell wall & plant cell does not.
A plant cell has a membrane & an animal cell does not.
25
Which of the following monomers is correctly paired with its polymer?
monosaccharide - lipids
amino acids-carbohydrates
fatty acids- proteins
nucleotide - nucleic acids
26
Which of these would increase a population of deer in a habitat?
a decline in the number of deer predators
a decline in the number of producers
an increase in the number of limiting factors
an increase in the number of deer predators
27
Which best explains why a pyramid is used to represent energy flow in ecosystems?
Available energy decreases when moving up pyramid
The population size increases when moving up pyramid
Available energy increases when moving up pyramid
The size of the organisms decreases when moving up pyramid
28
A tick sucking blood from a dog is an example of which type of symbiosis?
parasitism
capillarity
commensalism
mutualism
29
The bird eats the parasites on the water buffalo. Which type of symbiosis do the two have?
Predation
Parastisism
Commensalism
Mutualism
30
Which of these is NOT a difference between mitosis and meiosis?
Mitosis produces diploid cells; meiosis produces haploids
Mitosis has 1 division; meiosis has 2 divisions
Mitosis is sexual; meiosis is asexual
Mitosis produces 2 cells; meiosis produces 4 cells
31
What is the most likely reason for an increase in producers if the carnivores also increased?
more oxygen
fewer herbivores
less food
higher temperatures
32
What is the building block (monomer) of nucleic acids?
nucleotide
fatty acid
amino acid
monosaccharide
33
Which statement best explains what is happening at 50+ days?
Population growth decreases as cockroaches get older.
The population stabilizes as it approaches carrying capacity
An introduced predator is causing the decline in population
Destruction of habitat is causing the decline in population
34
Which organelle is correctly paired with its role?
Nucleus - cellular respiration
Ribosomes- protein synthesis
Vacuole - controls the cell
Mitochondria-photosynthesis
35
Lettuce in a salad wilts soon after salt is added. Why does this wilting occur?
absorb the extra salt
release water in the presence of salt
swell when exposed to salt
lose oxygen when in contact with salt
36
What do the similarities of the structures suggest about these organisms?
They evolved from a common ancestor
They live in the same environment
They live for the same length of time
They grow at the same rate
37
Which cross would be represented as Aa x aa, where A is white and a is dark?
cross 1
cross 3
cross 2
cross 4
38
What conclusion can be made based on the situation below with insects and pesticides?
The red bug has a genetic advantage for survival.
Both bugs do not respond to the pesticide.
Both bugs are genetically identical so respond the same.
The white bug has a genetic advantage for survival.
39
Which property water would cause this difference in the two plants?
High Heat Capacity
Surface Tension
Turgor Pressure
40
What % offspring would be recessive if one parent is heterozygous and other homozygous dominant
50%
100%
0%
75%
41
What is an example of osmosis?
potassium ions moving in/out of cell
water moving into the root cells of a plant
oxygen moving into bloodstream from lungs
carbon dioxide gas moving into leaf cells of plant
42
Who is the best Biology teacher you have ever had?
Miss McNair
Miss McNair
Miss McNair
Miss McNair
43
If a sperm cell fertilizes an egg, what would be the result after this fertilization?
A haploid zygote
A diploid zygote
44
What is the primary purpose of cellular respiration?
to use sunlight to produce food molecules
to release oxygen into the environment
to remove carbon dioxide from the environement
to release energy from food molecules
45
Which organism contains the most available energy?
Hawk
Grass
Mountain Lion
Snake
46
Which organelle is the site of cellular respiration?
1
3
4
2
47
The central dogma for life depends on the ability to make proteins. What is this?
DNA --> Protein --> RNA
DNA --> RNA --> Protein
RNA --> DNA --> Protein
Protein --> RNA --> DNA
48
What component of DNA accounts for genetic variation of organisms?
order of hydrogen bonds
order of nitrogen bases
order of phosphates
order of deoxyribose sugars
49
Which statement best describes the interdependence of photosynthesis and cellular respiration?
The products of P are the reactants of CR.
The products of P are the products of CR.
Photosynthesis and respiration are not connected.
CO2 & H2O are the products of P which are the reactants of R
50
Which of the following is a biotic factor that might limit the population?
Amount of producers
Amount of precipitation
Amount of oxygen available in atmosphere
Temperature
51
What organelle is found mainly in plant cells and functions as a storage center?
large central vacuole
mitochondria
chloroplast
cell wall
52
What advantage do sexually reproducing organisms have over asexually reproducing organisms?
increased reproductive rate
genetic variation
increased fertilization rate
genetic stability
53
Glucose belongs to which category of organic compound?
Protein
Nucleic Acid
Carbohydrates
Lipids
