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WorksheetsBiology Keystone Prep
Total questions: 200
Worksheet time: 2hrs 43mins
Provides support for PLANT cells
Mitochondria
Lysosome
Cell Wall
Centrioles
Cell Membrane
Regulates what can enter or leave the cell
Mitochondria
Lysosome
Cell Wall
Centrioles
Cell Membrane
Creates energy for the cell
Mitochondria
Lysosome
Cell Wall
Centrioles
Cell Membrane
Performs cell digestion and cleanup
Mitochondria
Lysosome
Cell Wall
Centrioles
Cell Membrane
Form spindle fibers during cell division
Mitochondria
Lysosome
Cell Wall
Centrioles
Cell Membrane
Water substance that fills the interior of cells and suspends organelles
Cilia
Vacuole
Cytoplasm
Flagellum
Cytoskeleton
Whip-like tail that helps in locomotion
Cilia
Vacuole
Cytoplasm
Flagellum
Cytoskeleton
Storage sac
Cilia
Vacuole
Cytoplasm
Flagellum
Cytoskeleton
Composed of microtubules and microfilaments; supports shape of cell
Cilia
Vacuole
Cytoplasm
Flagellum
Cytoskeleton
Hairlike projections that help with movement
Cilia
Vacuole
Cytoplasm
Flagellum
Cytoskeleton
The outer boundary of a plant cell is called what?
cell wall
cell membrane
nuclear envelope
cytoplasm
All cells have a cell wall
True
False
The nucleolus is responsible for the production of ribosomes.
True
False
The lipids of the cell are made by the rough endoplasmic reticulum.
True
False
The cell membrane is selectively permeable because it does not allow everything in
True
False
Organelles are the basic unit of structure and function in all living things.
True
False
Which of the following cell parts is not found in animals but is found in plants?
nucleus
cell membrane
chloroplast
ribosomes
Which of the following best describes the function of the Rough ER?
make lipids
make proteins
make energy
make carbohydrates
Which of the organelles is most like a post office (packaging, storing, & secreting)
rough ER
golgi body
smooth ER
vacuoles
Which of the following is NOT a function of the nucleus?
control center of the cell
contains the genetic information
provides energy for the cell
manufactures and stores RNA
The discovery of cells is linked most directly with what?
early investigations of causes of diseases
observations of large, unicellular organisms
the development of the microscope
efforts to reproduce organisms in the laboratory
Some viruses attack cells by inserting their own DNA into the host cells’ DNA. Why might it be easier for these viruses to attack prokaryotic cells than eukaryotic cells?
prokaryotic cells have less DNA than do eukaryotic cells
unlike eukaryotic cells, prokaryotic cells do not have a nucleus
the cell wall in prokaryotic cells is a strong barrier
the rapid growth of prokaryotic cells generates more virus
Where would you most likely find smooth ER?
cells of the muscles(need a lot of energy)
cells of the liver(filters toxins)
cells of the eyes(need energy and proteins)
cells of the skin
The bonds that link an oxygen atom to two hydrogen atoms to form a single water molecule are:
Ionic Bonds
Hydrogen Bonds
Non-polar Covalent Bonds
Polar Covalent Bonds
The bonds that link TWO or MORE water molecules together are called:
Ionic Bonds
Hydrogen Bonds
Non-polar Covalent bonds
Polar Covalent bonds
_______________________ is the tendency of water molecules to stick to each other to form a bead.
Cohesion
Adhesion
Specific Heat Capacity
Capillarity
____________________ is the attraction that occurs between water and unlike molecules to allow a drop of water to stick to the side of a glass beaker.
Cohesion
Adhesion
High specific Heat
Universal Solvent
Which property of water allows the roots of a plant to transport water up to the leaves on the highest part of the tree?
Cohesion
Adhesion
High Specific Heat
Capillarity
Which statement best describes an effect of the low density of frozen water in a lake?
It produce heat energy causing the nearby shore to warm up
It causes ice to sink to the bottom of the lake
When water freezes it expands, it then floats and provides insulation for organisms below the ice
When water freezes, it contracts, decreasing the water level in a lake dramatically.
A water bug is able to stand on top of the water. This is an example of:
Capillarity
Cohesion
Adhesion
Specific Heat Capacity
It takes ________________ (of) energy to change the temperature of water.
A lot
Not a lot
Water is used for transport nutrients, wastes gasses, and many other materials through our body. Which property below allows water to best accomplish this task?
High Heat capacity
Universal Solvent
Surface Tension
After his most recent victory, Cam Newton makes the following observations after the game. -10 Fans in the Stands -Three crows on the southwest light pole -12 sparrows in the bleachers -air temperature is 74 degrees -partly cloudy skies. These observations would best fit with which level of biological organization?
Community
Population
Biome
Ecosystem
Non-living items in the environment
Abiotic Factors
Biotic Factors
The smallest unit of LIFE
Atom
Sub-Atomic
Organism
Cell
Mr. Man is looking forward to hunting season. He has been watching the movements of one large buck on his land. What level is he studying?
Cell
Organism
Population
Biosphere
After their soccer game Grace and Breanne notice a large flock of geese fly overhead. This would best be described as a(n)
Ecosystem
Organism
Population
Biosphere
A group of tissues that work together and preform the same function would be called a(n)
Cell
Organ
Organ System
Organism
You cannot trust these as they make up everything(matter), and compose the smallest level
Atom
Cell
Organ
Tissue
The digestive, nervous, and reproductive are all examples an would be described as a group of organs that work together
Organism
Population
Organ system
Origami
In water, which option below lists the partial charges next to the correct atom?
Hydrogen positive, oxygen positive
Hydrogen negative, oxygen negative
Hydrogen negative, oxygen positive
Hydrogen positive, oxygen negative
Carbon will make _____ bond(s)
1
2
3
4
Oxygen will make _____bonds
1
2
3
4
Hydrogen will make ____ bonds
1
2
3
4
When atoms gain or loose an electron this type of bond is formed
Molecular Bond
Ionic Bond
Covalent Bond
Hydrogen Bond
When atoms share electrons EVENLY between them this type of bond is formed
Non-polar covalent bond
Polar covalent bond
The water molecule has areas that are positively charged, and negatively charged.
True
False
The formation of polymers from monomers occurs as a result of _________________reactions, and the breakdown of polymers into monomers occurs as a result of _______________ reactions
hydrolysis; hydrophilic
dehydration synthesis; hydrolysis
hydrolysis; dehydration synthesis
dehydration synthesis; hydrolytic
Which phrase below best describes a polymer?
individual parts of a large molecule
information coded in RNA
made of many small subunits bonded together
individual amino acids
Small clusters of atoms added to a molecule to give it certain properties are called:
ketone groups
worker groups
functional groups
property groups
Which of the following represents a reason for why the carbon molecule is the backbone for all organic life?
It can only form 1 other bond
It can form 2 bonds with other atoms
It can form 3 bonds with other atoms
It can form up to 4 bonds with other atoms
Number of hydrogen and oxygen atoms in water:
2 H’s, 1 O
2 O’s, 1 H
3 O, 1 H
3 H, 1 O
Which of the following reactions would cause a polymer to be broken down into its monomer pieces?
dehydration synthesis
synthesis reaction
hydrolysis
physical reaction
What type of bonds form between the oxygen atoms and hydrogen atoms in ONE water molecule?
hydrogen bonds
polar covalent bonds
peptide bonds
dipeptide bonds
Which of the following is an intermediate storage carbohydrate stored in the liver of animals?
starch
glucose
cellulose
glycogen
Which of the following is a characteristic of a lipid?
stores genetic information
long term energy source
helps cell wall be rigid
present in the exoskeleton of insects
Which of the following is NOT a lipid:
Steroids
Waxes
DNA
Oils
Which molecule below contains triglycerides with single-bonded, straight carbon chains?
saturated fat
unsaturated fat
steroid
DNA
Which of the following products is an example of an unsaturated fat?
butter
cheese
fish oil
bread loaf
Phospholipids make up which part of the cell?
mitochondria
cell membrane
nucleus
cell wall
When a protein changes shape and loses its function, the protein is being:
depolarized
repolypeptided
denatured
flattened
What property of water allows it to move upwards against gravity in small narrow tubes?
capillary action
low density
resist changes in temperature
surface tension
You begin the process of making a boiled egg by putting a pot of water on a stovetop burner heated on high. It takes seven minutes for the water to begin to boil. Some liquid metals would have heated to the same temperature in less than a minute. What characteristic makes water take longer to heat?
nearly universal solvent
polar molecule
water has a high specific heat
adhesion
You walk through the woods and see water hanging off the tips of pine needles. How do the physical properties of water result in the scene you see?
Cohesion allows water droplets to form, and adhesion keeps the droplets on the needles.
Adhesion allows droplets to form, and cohesion keeps the droplets on the needles.
Cohesion allows droplets to form, and capillarity keeps the droplets on the needles.
Adhesion allows droplets to form, and capillarity keeps the droplets on the needles.
What type of transport is being pictured (assume the substance IS moving from a higher concentration to a lower one)
Diffusion
Facilitated Diffusion
Active transport
Endocytosis
Water moving from a lower concentration to a higher concentration would most likely be completed by
Osmosis
Active Transport
This structure regulates what enters and leaves the cell
Cell Wall
Golgi Body
Plasma Membrane
Nucleus
This process DOES NOT require energy
Active transport
Passive Transport
Protein Pumps
Endocytosis
The movement of small solute particles from a high concentration to a lower concentration through the cell membrane is known as:
Osmosis
Endocytosis
Exocytosis
Diffusion
When molecules are EVENLY spread out in a solution, they are at:
Hypertonicity
Hypotonicity
Equilibrium
Tonic
Cell membranes are said to be _________________ which means only certain molecules will pass through:
selectively permeable
impermeable
permeable
unpermeable
The process by which water diffuses from high concentration to low concentration through the cell membrane is known as:
Facilitated Diffusion
Diffusion
Equilibrium
Osmosis
Osmosis DOES NOT require any energy. This statement is:
True
False
This type of solution would cause water to move into the cell, increasing its size
hypotonic
isotonic
hypertonic
nontonic
This type of solution would cause water to move out of and into the cell in equal amounts causing no change in its size:
hypotonic
isotonic
hypertonic
nontonic
What is one way that facilitated diffusion differs from regular diffusion?
Regular diffusion requires a concentration gradient and facilitated diffusion does not
Facilitated diffusion requires a protein in the membrane to move molecules
Facilitated diffusion requires energy and regular diffusion does not.
Diffusion moves particles from low to high and facilitated diffusion does not.
In order for ACTIVE transport to occur this molecule is directly needed
Water
Oxygen
Carbon Dioxide
ATP
________________: brings particles into the cell; vesicles fuse with the cell membrane, depositing material inside the cell.
Endocyotsis
Facilitated Diffusion
Exocytosis
Ecocytosis
________________: forces particles out the cell; vesicles are made in the cell and fuse with the membrane to dump materials out of the cell.
Endocytosis
Ecoboostcytosis
Exocytosis
Isocytosis
When a cell moves material from lower to higher concentration, what process is being used?
Facilitated Diffusion
Protein Pump
Diffusion
Osmosis
If a cell begins to approach bursting point, this means that there are more water molecules outside of the cell and they are trying to go from a high concentration outside to a lower concentration of water molecules inside the cell- causing water to move into the cell.
True
False
A phospholipid is made of 2 main parts, which part is hydroPHOBIC?
Head
Tails
None of the above
All of the above
Putting salt around a plant would most likely cause it to die because
The high amount of solutes around the plan would create a hypotonic environment, causing water to exit the cells
The high amount of water around the plant would create a hypertonic environment, causing water to move out of the cell
The high amount of solutes around the plant would create a hypotonic environment causing water to move into the cell
The high amount of solutes around the plant, would cause a hypertonic environment, causing water to move out of the cell
Mr. Mancino has been pheasant hunting all day. It has been un-seasonably warm for October and due to moving through heavy areas of brush and briars the thick clothing has caused a major loss of water due to sweat. He has been hydrating all day and has drank about 8 liters of water(that's a lot). However by the time he reaches his truck, he is feeling dizzy and passes out. Thankfully, his dog Cooper is trained in CPR and is able to revive him. He is able to send a call out and paramedics arrive on scene. What type of condition in his blood stream was MOST LIKELY the cause of his condition?
Hypertonic
Hypotonic
Isotonic
Phosphotonic
Osmotonic
In order for facilitated diffusion to occur, a cell would need energy in the form of ATP made by the power house of the cell known as the mitochondria
True
False
What organelle is responsible for photosynthesis in plants and algae?
Mitochondria
Chloroplast
Chlorophyll
Cellular Membrane
What is the fluid-filled space that contains enzymes for the light independent reactions called?
Stroma
Thylakoids
Chemiosmosis
Chlorphyll
What are stacks of flattened sacs that contain the pigment chlorophyll called?
Stroma
Thylakoids
Chemiosmosis
Chloroplast
Which is a light-independent reaction?
Chemiosmosis
Electron Pathway
PS1
Calvin Cycle
In order to get 1 molecule of glucose the calvin cycle must turn_______ time(s).
1
3
4
6
What is the general equation for photosynthesis?
6CO2+6O2---->6C6H12O6 + 6O2
6CO2+6H2O----> 6O2+ C6H12O6
C6H12O6+ 6O2-----> 6H2O+ 6O2
C6H12O6+ 6H2O----> 6O2+ C6H12O6
C6H12O6 is the chemical formula for
Water
ATP
Glucose
Oxygen
Which of the following are needed for photosynthesis to occur?(More than 1!!)
Glucose
Oxygen
Carbon Dioxide
Sunlight
Water
What are the products of photosynthesis?(more than 1!!)
Glucose
Oxygen
Sunlight + Water
Carbon Dioxide
What is the site of the light dependent reactions?
Stroma
Thylakoid
Chemiosmosis
Chlorophyll
What is the site of the light independent reactions?
Stroma
Thylakoid
Chemiosmosis
Chlorophyll
Chlorophyll is best at absorbing __________ light. (SELECT 2)
Green
Yellow
Blue
Red
Chlorophyll reflects______ light
Green
Yellow
Red
Blue
In the light dependent reactions water is split by
Photosystem 1
Photosystem 2
Photosystem 3.0
Calvin Cycle
In the light dependent reactions, these two energy molecules are made
Glucose and Oxygen
ADP and NADP+
ATP and NADPH
Carbon Dioxide and water
Which of the following would NOT effect the rate of photosynthesis
intensity of sunlight
Temperature
Wave Length (color) of light
Amount of Nitrogen in atmosphere
If the light dependent reactions were to completely stop, what would eventually happen to the light INdependent reactions (calvin cycle)?
They would continue on as normal
They would stop due to lack of oxygen
They would stop due to lack of ATP and NADPH
They would stop due to lack of Water
Which of the following would effect the rate of photosynthesis
Intensity of light
Wavelength of light
Temperature
Amount of Carbon dioxide in air
Amount of Water available to plant
Which molecule shown in Figure 8–3 is an electron carrier (also called an electron acceptor)?
carbon dioxide
H2O
NADP+
oxygen
A student is collecting the gas given off from a plant exposed to bright sunlight. The gas being collected is probably:
Oxygen
Carbon Dioxide
ATP
Glucose
Photosynthesis uses sunlight to convert water and carbon dioxide into:
oxygen and carbon.
high-energy sugars and proteins.
ATP and oxygen.
oxygen and glucose sugar.
Which of the following is NOT found in the overall reaction for photosynthesis?
carbon dioxide
water
light
nitrogen
Six molecules of carbon dioxide and six molecules of water go into the process of photosynthesis. This results in a molecule of sugar being made as well as six molecules of: (hint: think of the overall equation here) *
glucose
water
oxygen
ATP
In which organism does respiration NOT take place in the mitochondria?
sunflower
oak tree
panda bear
Bacteria
Where do the light-dependent reactions of photosynthesis take place?
in the stroma of the chloroplast
within the mitochondrial membrane
within the thylakoid membrane
in the outer membrane of the chloroplast
The Calvin cycle takes place in the
stroma.
photosystems.
thylakoid membranes.
chlorophyll molecules.
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars?
More sugars will be produced.
No sugars will be produced.
The same number of sugars will be produced.
Fewer sugars will be produced at first, but then the plant will recover.
Which of the following is NOT a stage of cellular respiration?
fermentation
electron transport
glycolysis
Krebs cycle
Which of the following is the correct sequence of events in cellular respiration?
glycolysis → fermentation → Krebs cycle
Krebs cycle → electron transport → glycolysis
glycolysis → Krebs cycle → electron transport
Krebs cycle → glycolysis → electron transport
What is the correct equation for cellular respiration?
6O2 + C6H12O6 → 6CO2 + 6H2O + Energy
6O2 + C6H12O6 + Energy → 6CO2 + 6H2O
6CO2 + 6H2O → 6O2 + C6H12O6 + Energy
6CO2 + 6H2O + Energy → 6O2 + C6H12O6
Cellular respiration releases energy by breaking down:
glucose.
ATP.
carbon dioxide.
water.
What are the reactants in the equation for cellular respiration?
oxygen and lactic acid
carbon dioxide and water
glucose and oxygen
water and glucose
Which of these is a product of cellular respiration?
oxygen
water
glucose
lactic acid
Cellular respiration is called an aerobic process because it requires:
light.
exercise.
oxygen.
glucose.
Which of the following is one of the ways that cellular respiration and photosynthesis are opposite processes?
Photosynthesis releases energy, and cellular respiration stores energy.
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
Photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it back.
Photosynthesis breaks down glucose, and cellular respiration produces glucose.
Photosynthesis is to chloroplasts as cellular respiration is to:
chloroplasts.
chlorophyll.
mitochondria.
nuclei.
The products of photosynthesis are the:
products of cellular respiration.
reactants of cellular respiration.
products of glycolysis.
reactants of fermentation.
Which of these processes takes place in the cytoplasm of a cell?
glycolysis
electron transport
Krebs cycle
photosynthesis
Glycolysis provides a cell with a net gain of:
2 ATP molecules.
4 ATP molecules.
18 ATP molecules.
360 ATP molecules.
In eukaryotic cellular respiration, electron transport occurs in the:
mitochondrial membrane.
nucleus.
cell membrane.
cytoplasm.
Which of the following provide high-energy electrons that are used in the electron transport chain?
NADH and FADH2
ATP and ADP
citric acid
oxygen
High-energy electrons that move down the electron transport chain ultimately provide the energy needed to:
transport water molecules across the membrane.
allow ADP to bond to another phosphate to produce ATP molecules.
convert carbon dioxide into water molecules.
break down glucose into pyruvic acid molecules.
Cellular respiration uses 1 molecule of glucose to produce approximately how many total (net) ATP’s?
2 ATP molecules.
4 ATP molecules.
30 ATP molecules.
36 ATP molecules.
The two main types of fermentation are called:
alcoholic and aerobic.
aerobic and anaerobic.
alcoholic and lactic acid.
lactic acid and anaerobic.
Both fermentation processes occur in the:
thylakoid membrane
mitochondrial membrane
stroma
cytoplasm
A track sprinter runs a 400 meter race (which is one lap around a track) at the fastest speed he can go. He is not taking in enough oxygen to allow his body to break down glucose fast enough to refuel his ATP source. This sprinter will have to break down sugar in the absence of oxygen. He will use:
lactic acid fermentation
alcoholic fermentation
Yeast can break down sugar in the absence of oxygen. As yeast breaks down sugar, it produces which of the following as by-products?
oxygen and carbon dioxide
sugar and carbon dioxide
alcohol and carbon dioxide
Energy is released from ATP when
a phosphate group is added
adenine bonds to ribose
ATP is exposed to sunlight
a phosphate group is removed
Organisms, such as plants, that make their own food are called
autotrophs.
heterotrophs.
thylakoids.
pigments.
Organisms that cannot make their own food and must obtain energy from external sources are called:
autotrophs.
heterotrophs.
thylakoids.
plants.
Which of the following organisms makes its own food using light energy from the sun?
mushroom (a fungi)
bacteria
leopard
oak tree
Which of the following processes takes place in the chloroplast of a cell?
Glucose is broken down into smaller molecules.
Oxygen combines with hydrogen to form water.
Lactic acid is released as a metabolic by-product.
Carbon dioxide reacts to form glucose
What happens during photosynthesis?
Heterotrophs consume ATP.
Heterotrophs produce ATP.
Autotrophs consume glucose.
Autotrophs produce glucose.
Plants gather the sun’s energy with light-absorbing molecules called:
pigments.
water.
oxygen.
glucose.
Most plants appear green because chlorophyll:
absorbs green light.
absorbs violet light.
reflects green light.
What is the role of NADP+ in photosynthesis?
electron carrier (also called an electron acceptor)
high-energy sugar
photosystem
pigment
Organisms, such as hawks and leopards, that obtain energy from the foods they consume are called
Autotrophs
Heterotrophs
The products of cellular respiration become the (a) of photosynthesis
In a PROkaryotic cell, the DNA / Chromosome is found in the
Nucleus
Cytoplasm
Mitosis is used for
Growth and Repair
Sexual Reproduction
Making sperm and egg cells
Bacteria to reproduce
The phase of mitosis in which the sister chromatids are seperated is known as?
Interphase
Metaphase
Prophase
Anaphase
The phase in which the chromosomes line up in the middle of the cell is
Interphase
Prophase
Metaphase
Cytokinesis
The phase in which the chromosomes first become visible is
Interphase
Prophase
Metaphase
Anaphase
The longest phase where the cell grows, copies its DNA and prepares to divide is known as
Interphase
Prophase
Metaphase
Telophase
The phase in which the two new nuclei form but the cytoplasm as not been split into two new cells yet
Cytokinesis
Telophase
Cytokinesis in plant cells is different from that in animal cells
True
False
Which option lists the steps of cell division in the correct order.
prophase, metaphse, telophase, interphase, anaphase
metaphase, anaphase, telophase, interphase, prophase
interphase, prophase, metaphase, anaphase, telophase
interphase, prophase, telophase, anaphase, metaphase
Meiosis is used to create
Sperm and egg cells
Muscle Cells
Liver Cells
All of the above
If a diploid cell entering meiosis has 22 chromosomes how many will the gamete cells produced at the end of the process have?
22
44
11
5.5
A cell entering mitosis has 32 chromosomes, how many chromosomes will one of the cells at the end of this process have inside of their nucleus?
32
54
16
8
The egg cell of one species of organisms has 23 chromosomes, how many chromosomes will a sperm cell from the same species have?
23
46
The cells made by meiosis are used for_________ reproduction.
Sexual
Asexual
Which phase leads to the start of both mitosis and meiosis and is the longest?
Metaphase
Telophase
Cytophase
Interphase
Interphase is broken into 3 stages, in which stage is the DNA synthesized causing the chromosomes to replicate?
G1
S
G2
During which part of interphase does a cell make its final preparations before mitosis?
G1
G2
S
In meiosis a cell has 4 pairs of chromosomes, how many different genetic variations can be created from this cell just by independent assortment?
8
4
16
32
In meiosis each of these processes create genetic diversity except
crossing over
independent assortment
cytokinesis
random fertilization
Chromosomes that have the same genes but maybe DIFFERENT versions(alleles) of those genes are called
twin chromosomes
sister chromosomes
sister chromatids
homologous chromosomes
Crossing over, when the homologous chromosomes exchange DNA occurs during
Interphase 1
Prophase 1
Interphase 2
Prophase 2
This type of cell would be considered haploid, meaning it would contain only ONE copy of a chromosome for each pair
Sperm cell
Body cell
This type of cell would be diploid meaning it contains TWO copies of each chromosome for each pair
Egg cell
Body cell
1 round of cell division
Mitosis
Meiosis
2 rounds of cell division
Mitosis
Meiosis
Produces Diploid body cells
Mitosis
Meiosis
Produces haploid gametes
Mitosis
Meiosis
Cells created are identical
Mitosis
Meiosis
Cells created are unique
Mitosis
Meiosis
Has an interphase stage
Mitosis
Meiosis
Random assortment of chromosomes occurs at the metaphase plate; resulting in genetic variation in daughter cells.
Mitosis
Meiosis
This process produces 2 daughter cells that have the same chromosome number as the original parent cell.
Mitosis
Meiosis
Nuclear Division Occurs
Mitosis
Meiosis
When the cells spend less time in interphase and more time actively dividing and making more cells faster than they should this is known as
Cancer
Flu
Common Cold
Chicken pox
1. What process will produce 2 new strands of DNA during the S phase of interphase?
transcription
translation
replication
translocation
What is the function of DNA?
store proteins
make bonds in organic molecules
store genetic information to make proteins
make lipids
What is the name of the monomer units of nucleic acids?
nucleotides
amino acids
proteins
polypeptides
Where is DNA found in the cell of a fungus?
ribosome
cytoplasm
nucleus
cell membrane
What enzyme controls the unwinding and unzipping of DNA during DNA replication?
DNA helicase
Ribozymes
DNA ligase
DNA polymerase
The two sides of DNA are made up of repeating units of what?
phosphate and nitrogen
sugar and water
sugar and phosphate
sugar and nitrogen bases
Which of the following is NOT a difference between DNA and RNA?
double vs. single strands
glucose vs. galactose sugar
thymine vs. uracil
stays in nucleus vs. moving to the cytoplasm
Uracil is considered a type of what?
amino acid
nucleic acid
nitric acid
nitrogen base
In RNA, adenine always pairs with which of the following?
thymine
guanine
uracil
cytosine
tRNA, mRNA, and rRNA is made through a process known as what?
replication
transcription
translation
transition
Which molecule carries the code from the DNA to the ribosome?
tRNA
rRNA
cRNA
mRNA
Where in the cell is the DNA transcribed into RNA?
nucleus
ribosome
golgi body
plasma membrane
Where does the process of translation take place?
in the nucleus
on the golgi body
in the smooth ER
in the ribosome
Which of these statements best explains how genes and proteins are related?
genes are segments of DNA that code for proteins.
proteins are segments of DNA that code for genes.
genes are the building blocks of proteins.
DNA codes for proteins that instruct the ribosome how to make genes
Which of the following is NOT correctly matched with its function?
rRNA- contains material that makes up ribosomes
DNA- carries the amino acids to the ribosomes
tRNA- brings amino acids to the site of the ribosome
mRNA- carries genetic codes from nucleus to the ribosomes
How many nucleotides make up one RNA codon? (the codon codes for one amino acid)
1
2
3
4
If a protein required the assembly of 900 amino acids, how many nitrogen bases would be required to code for that protein?
9000
3000
2700
12000
Suppose all of the ribosomes in a cell were destroyed. How would this most likely affect the process of gene expression.
The DNA double strand would be unable to separate
The cell would be unable to form mRNA strands
The amino acids could not be joined to form a protein
The DNA would not be able to copy itself
If a codon has a substitution mutation that changes an RNA sequence from UGC to UGU will result in
nonsense mutation
silent mutation
missense mutation
non-disjunction
If a codon has a substitution mutation that changes an RNA sequence from UGC to UGA will result in
nonsense mutation
silent mutation
missense mutation
non-disjunction
If a codon has a substitution mutation that changes an RNA sequence from UGC to UGG will result in
nonsense mutation
silent mutation
missense mutation
non-disjunction
Which option below would MOST LIKELY result in a non-functioning protein
Silent mutation
Missense Mutation
Nonsense Mutation
Which option below would MOST LIKELY result in a non-functioning protein
DNA with 2 deletions
DNA with 4 deletions and 1 insertion
DNA with 3 insertions
DNA with 3 deletions
