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