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Bio 1 EOC Released Questions Flashcards | StudBud
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Bio 1 EOC Released Questions
Bio 1 EOC Released Questions
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#grade_09 #biology
Flashcards
60 cards
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Questions
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Answers
1
Which effect could a mutation in mRNA have on the productions of proteins?
The protein will have a different identity
The protein will produce excess water
The protein will produce excess nitrogen
The protein will have a coiled shape
2
Plant cells are able to produce their own food. This process happens in what structure?
Mitochondrion
Vacuole
Chloroplast
Cell Wall
3
Why must DNA replication have to occur before a cell can divide by mitosis?
To allow crossing over to occur in each of the cells produced
To keep same number of chromosomes in the daughter cells as the parent cell
To cause one cell to have double the amount of chromosomes in parent cell
To cause cells made to have half the number of chromosomes in parent cell
4
What determines the function of a specialized cell?
The number of chromosomes in the cell
The type of RNA in the cell
The number of ribosomes in the cell
The active genes in the cell
5
During which phase of the cell cycle does most cell growth occur?
Cytokinesis
Interphase
Prophase
Mitosis
6
How can cells from the same organism have such different shapes and functions?
As each cell is different, DNA changes so that each type has different DNA
Cells produce proteins which destroy the nonactive DNA, causing new shapes
Mutations in the nuclei lead to new combinations of DNA, giving new shapes
During differentiation, parts of the DNA in each cell activate, new shapes
7
Which statement BEST explains why animals are considered heterotrophic?
They’re able to obtain nutrients by decomposing plant and animal tissue
They’re able to get nutrients by consuming other organisms for their energy
They’re able to produce food through photosynthesis
They’re able to produce food through respiration
8
Scientists believe that the polar bear and the brown bear evolved from the same ancestor. What’s responsible for this?
Artificial selection
Sexual competition
Asexual reproduction
Geographic isolation
9
What must happen for the carbon cycle to continue in this terrarium?
The decomposes must begin to produce O2
The snails must double their production of CO2
All organisms must continue to exchange gases
The plant must produce CO2 at a faster rate
10
Which is a primary function of a vacuole in a cell?
Protein synthesis
Reproduction
Enzyme Production
Storage
11
An insecticide kills most of the ants on a plant. Over time, it gets worse at killing ants. Why?
The ants killed by the insecticide are genetically the same as the survivor
The ants killed had thinner cell membranes than the surviving ants
The ants that survived were younger than the ones that died
The ants that were killed and the surviving ants were genetically different
12
Twin girls are separated at birth. After 20 years the twins have different heights and weights. What is the cause?
Each twin was provided a different diet and physical activities
The proteins made by one twin are different from the other twin
1 twin had a genetic condition that prevented her from growing tall
The DNA of one twin was different from the DNA of the other twin
13
During translation, what does the tRNA deliver to the ribosomes?
Proteins
DNA
Amino acids
MRNA
14
What activity MOST contributes to the depletion of the ozone layer?
Overuse of fertilizers
Release of CFCs
Deforestation
Burning fossil fuels
15
Which Process can occur in BOTH mitosis and Meiosis?
Fertilization
Independent assortment
Crossing Over
Gene mutation
16
A contractile vacuole helps protists eliminate liquid. This is a pumping process that reduces pressure. Which energy?
DNA
Ribosomes
ATP
Lipids
17
wolves have been eliminated due to their threats to humans. How can wolves coming back benefit the ecosystem
It’ll eliminate weak animals from a prey population, decreasing competition
It’ll eliminate the fit animals among the prey population, birthrates go up
It can cause the prey population to migrate, resulting in more fit prey
It can cause the prey population to better blend in with the environment
18
This diagram shows DNA fingerprints for a child and four adults. Which adult is MOST LIKELY a parent of the child?
Adult 1
Adult 4
Adult 2
Adult 3
19
To which order did the caddies fly belong?
Diptera
Trichoptera
Acarina
Siphonaptera
20
Which equation BEST represents the process of cellular respiration?
O2+H2O->CO2+Glucose
Glucose+O2->CO2+H2O
CO2+H2O->Glucose+O2
CO2+Glucose->O2+H2O
21
A section of DNA has these bases: TAG CAG TAC. Which mRNA sequence is produced?
UTC GTC UTG
ATC GTC ATG
AUC GUC AUG
AUG CUG AUC
22
Salivary amylase is an enzyme that breaks down starches. What substance would be hard to read down without this enzyme?
Lipids
Nucleic acids
Proteins
Carbohydrates
23
What will most likely happen if a nonnative species is introduced into a stable ecosystem?
Native species share food with new species. Ecosystem becomes unbalanced
The native species will change their diet, and the ecosystem will be stable
Native species will have to compete for resources. Ecosystem unbalanced
The native species will move to another area. Ecosystem will be stable
24
Which substance do biochemists often search for in fossils to understand the evolution of the organism?
DNA
ATP
Oxygen
Iron
25
Having freckles is dominant. If 2 heterozygous people have a kid, what is the chance the kid will have freckles?
75%
50%
25%
0%
26
A cell is in a solute with a higher salt concentration than inside the cell. What will happen to the cell?
The size of the red blood cell will remain constant
The red blood cell will swell from absorbing salt molecules
The red blood cell will swell at first then shrink
The red blood cell will shrink from losing water molecules
27
How does the body of a runner keep up with the demand for energy when cellular oxygen levels are low?
Through anaerobic respiration in the cytoplasm
Through aerobic respiration in the plasma membrane
Through ATP produced directly from sunlight
Through energy production in the mitochondria
28
What would MOST LIKELY be produced when a cell with eight chromosomes undergoes Mitosis?
4 cells with 8 chromosomes each
2 cells with 4 chromosomes each
4 cells with 4 chromosomes each
2 cells with 8 chromosomes each
29
What carries the instructions for making amino acids in a protein?
The sequence of nitrogen bases on the mRNA
The hydrogen bonding between nitrogen bases
The nitrogen base on the tRNA
The nitrogen base bonding on the DNA molecule
30
Which molecules are joined together to make proteins?
Nucleic Acids
Fatty acids
Amino Acids
Acetic Acids
31
Multicellular eukaryotic autotrophs belong to which kingdom?
Plantae
Fungi
Animalia
Protista
32
What is the basis for the earliest classification system of organisms?
Reproductive patterns
Differences in habitat
Evolutionary relationships
Physical characteristics
33
Which would be a desirable trait scientists may want to create in a transgenic plant?
The ability to change color in winter
The ability to use a lot of water
The ability to resist insects
The ability to grow less fruit
34
In nature, which type of behavior causes animals to produce aggressive displays and sounds?
Territoriality
Imprinting
Habituation
Conditioning
35
Which transgenic organism has been used to clean up oil spills?
Bacteria
Fungus
Jellyfish
Paramecia
36
Which best summarizes the role of DNA in the production of proteins?
DNA breaks hydrogen bonds between amino acids
DNA contains the instructions used to make proteins
DNA transports amino acids to the ribosomes to make proteins
DNA moves to the cytoplasm to build proteins
37
Which will MOST LIKELY result in a negative growth rate in the human population of a country?
The country has improved economic conditions
The birth rate is higher than the death rate
The country has made improvements in sanitation
The death rate is higher than the birth rate
38
How do some chemicals increase the risk of a person getting cancer?
By causing a deficiency of vitamin D
By causing a decrease in the immune response
By causing an increase of toxins in the skin
By causing cell mutations
39
Waxes create a waterproof layer on the outside of some living organisms. which group of organic molecules are waxes in?
Lipids
Carbohydrates
Proteins
Nucleic acids
40
Some marine worms and mollusks go through similar larval stages during development. What is their relationship?
They mate with each other
They share a common ancestor
They compete for a habitat
They share the same food source
41
Which statement BEST describes natural selection?
Organisms better dated to their environment are more likely to reproduce
Small organisms are more likely to survive than larger organisms
As weather changes, organisms that find shelter need less energy to live
Organisms that eat plants need less food than organisms that eat animals
42
What is the difference between the DNA of a dog and the DNA of a fly?
The sequence of nucleotides
The strength of covalent bonds
The strength of hydrogen bonds
The type of sugar building blocks
43
What is the function of the restriction enzyme?
To regulate blood sugar levels
To cut DNA at a specific nucleotide sequence
To produce hormones that regulate digestion
To control the movement of proteins into a cell
44
Which of these cells in the human body is specialized to transport oxygen throughout the body?
C
B
A
D
45
Which graph best illustrates the growth of a population introduced into an environment with limited resources?
D
B
A
C
46
Colchicine disrupts cellular division. Which cell process would MOST LIKELY stop if colchicine were added to liver cells
Active Transport
Mitosis
Meiosis
Crossing Over
47
Genetically identical plants will produce pink or blue flowers. What is MOST LIKELY the reason they are different colors
The flower-color gene is codominant
The flower-color gene is sex-linked
Environmental factors affect flower color
Mutations alter the flower-color gene
48
Which will MOST LIKELY cause an increase in the frequency of genetic mutations in humans?
Increased exposure to mold spores in the air
Increased exposure to X-rays
Increased exposure to bacteria in drinking water
Increased exposure to the rising levels of atmospheric CO2
49
Scientists claim evidence says birds should be reclassified to share more taxonomic groups with dinosaurs. Why?
Evidence showing birds shared similar behaviors with dinosaurs
Evidence showing birds shared a common genetic history with dinosaurs
Evidence showing birds shared similar habitats with dinosaurs
Evidence showing birds shared similar nutritional requirements as dinos
50
Which adaption do ferns, gymnosperms, and angiosperms have that mosses do not?
Flowers
Chloroplasts
Vascular tissue
Stomata
51
How are mitosis and meiosis similar?
Both produce gametes
Both involve crossing over
Both have two cell divisions
Both require DNA replication
52
What’ll MOST LIKELY be the result of humans moving into new areas. Forests are clear cut and housing developments built.
Better sanitation in the area will reduce the amount of pollution
rainfall in the area will increase because there will be increased runoff.
Many organisms will lose their homes because their habitats were destroyed
Global temperatures will decrease because trees are removed
53
When a chemical is added to the pond water in which the Paramecium lives, it stops moving. Which structure is affected?
1
2
3
4
54
An antibiotic was effective against a bacterial infection 20 years ago but no longer works. Wh I BEST explains why?
Viruses have changed structure of the bacteria that causes the infection
Resistant bacteria have survived and reproduced at a greater rate
Bacteria resistant to the antibiotic have killed off non resistant bacteria
The human body has developed an immunity to the antibiotics
55
What do both Prokaryotic and Eukaryotic cells contain?
Membrane-bound organelles
Cytoplasm
A nucleus
Linear chromosomes
56
A student noticed that a freshwater plant produced bubbles when placed in light. What can we most likely conclude?
Bubbles of O2 were produced as a result of cellular respiration
Bubbles of CO2 were produced as a result of cellular respiration
Bubbles of O2 were produced as a result of photosynthesis
Bubbles of CO2 were produced as a result of photosynthesis
57
Which statement best explains how sweating during exercise maintains homeostasis
It regulates mineral concentrations in cells
It maintains water balance
It regulates body temp
It maintains sugar balance in cells
58
What will most likely occur if the population of the world continues to increase at predicted rates?
All human diseases will be eliminated
There will be more rapid depletion of natural resources
The human race will rapidly become extinct
There will be an increase in biodiversity as a result of tech upgrades
59
Which BEST explains why the rate of a biochemical reaction decreases at high temperatures?
The bonds between substrates are broken
The enzyme-substance complex forms
The shape of the enzyme changes
The activation energy increases
60
Why are many farmers encouraged to plant different types of crops on the same land throughout the year?
It prevents insects from destroying crops
It allows for more genetic variation in plants
It helps to preserve the quality of the soil
It provides more food to other countries
