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