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WorksheetsAP Bio Review part 2
Total questions: 191
Worksheet time: 3hrs 32mins
Water is an excellent solvent. Select the property that justifies this statement.
as a polar molecule, it can surround and dissolve ionic and polar molecules
it forms ionic bonds with ions, hydrogen bonds with polar molecules, and hydrophobic interactions with non polar molecules
it forms hydrogen bonds with itself so cohesion is possible
it is liquid and will adhere to many substances
The partial negative charge at one end of a water molecule is attracted to a partial positive charge of another water molecule. What is this type of attraction called?
a polar covalent bond
an ionic bond
a hydration shell
a hydrogen bond
A substance that cannot be decomposed into simpler substances by chemical means - made up of the same atoms
atom
element
molecule
organism
An atom that has a different number of neutrons than the standard for that element.
element
isotope
molecule
organism
A group of two or more atoms that are bonded together
elements
isotopes
molecules
essential elements of life
a major component of genes and proteins
nitrogen
sulfur
iron
oxygen
major part of photosynthesis and respiration
carbon
hydrogen
sulfur
calcium
is an important part of dna molecules
phosphorus
hydrogen
sulfur
iron
Salt dissolves in water because
The water molecules wiggle between the Na and Cl atoms
Water gets warm and moves around too much
The polar areas of water molecules surround the Na and Cl ions
Identify the macromolecule that would form from the monomer pictured in the image below.
carbohydrate
nucleic acid
protein
lipid
Macromolecule that steroids are made of
protein
nucleic acids
carbohydrates
lipids
Amylase, pepsin, lipase, DNA polymerase are all enzymes made out of what macromolecule?
proteins
nucleic acids
carbohydrates
lipids
Which of the following is NOT a monomer subunit
glucose
nucleotide
amino acid
triglyceride
The cell membrane is made out of these TWO macromolecules
proteins
nucleic acids
carbohydrates
lipids
Which statement applies to hydrolysis
breaks down polymers
produces water
creates glycogen from glucose
creates proteins from amino acids
Protein folding: What happens during tertiary folding?
the peptide bonds are made
carboxyl groups connect to amine groups through Hydrogen bonds
Hydrophobic side chains interact and "find" each other
multiple polypeptide chains connect together
What macromolecule group does this belong to?
proteins
carbohydrates
lipids
nucleic acids
What is this?
monosaccharide
protein
amino acid
nucleotide
ATP belongs to which macromolecule
protein
nucleic acids
carbohydrates
lipids
What kind of cells usually have a cell wall?
Plants and Animals
Animals
Plants
Plants and Bacteria
Keratin is a protein found in hair. Where in a cell is keratin made?
nucleus
vacuole
ribosomes
mitochondria
Maintains shape, acts as tracks for organelles to move, and makes up cilia/flagella.
plasmodesmata
cytoskeleton
cytosol
Endoplasmic reticulum
When a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is serving as which part of the cell communication pathway?
relay molecule
endocrine molecule
signal molecule
receptor
Enzymes are an example of
Lipids
Carbohydrate
Protein
Nucleic Acid
Most chemical reactions in the body rely on enzymes. Why are enzymes are necessary for many cellular reactions?
The reactions are too slow to meet the needs of the cell if enzymes are missing
The reactions take up too much space in the cell if enzymes are missing
Enzymes change reactants from solid to liquid during the reactions.
Enzymes supply the oxygen necessary for the reactions.
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?
The body is kept relatively warm to prevent too much enzyme action.
The body needs to be warm to prevent hypothermia.
Enzymes function best at a specific temperature.
There is no connection between the two statements.
The amount of energy needed for a reaction to occur is called the (a) ?
What does an enzyme do?
Decreases the activation energy of a reaction
Increases the activation energy of a reaction
Does not change the activation energy of a reaction
Makes the reaction last longer
How does an enzymes shape relate to its function?
the shape of the enzyme has no relation to its function
the enzyme is shaped specially for certain substrates to perform a specific reaction
the enzyme shape acts as a receptor to certain products
the enzyme shape can fit into specific substrates to cease a reaction
What's going on in this picture?
The enzyme is taking the red substrate and turning it blue
The enzyme's active site is blocked by a competitive inhibitor
The enzyme can't function if too many substrates are trying to bind
This is an example of an anabolic enzyme reaction
An activor or inhibitor binding place that is not the active site, causing the enzyme to change conformation (shape) is an example of ...
competative inhibition
allosteric control
optimum conditions
induced fit
Glucose is ____________________ during cell respiration
reduced
oxidized
ATP is a more stable molecule than ADP
True
False
During cell respiration, the first step is to USE to ATP
True
False
Glycolysis occurs in the cytoplasm and produces all of the following EXCEPT
ATP
Carbon Dioxide
3 carbon chain (pyruvate)
NADH (electron carrier)
The purpose of the Krebs cycle is to
completely oxidize the remaining glucose chain
produce carbon dioxide
produce water
regenerate NAD+ so glycolysis can continue
Chemiosmosis is the use of energy to _______________________
set up a hydrogen ion gradient
to produce water
oxidize glucose
remove electrons from the ETC using oxygen gas
What is FALSE about ATP synthase
it can be found in the mitochodrion and chloroplast
it is an enzyme with two substrates, ADP and a phosphate
it is a transport protein
it actively transports H+ across membranes
Oxidative phosphorylation uses _______________ to make ATP
electrons energy from glucose
electron energy from oxygen gas
electron energy from water
What makes more ATP
oxidative phosphorylation during ETC and ATP synthase
substrate level phosphorylation during glycolysis and krebs
Oxygen gas is a _____________ of cell respiration because it _______
reactant, replaces lost electrons from glucose
reactant, removes low energy electrons from the ETC chain
product, it the left over after the carbon chain releases its electrons
product, when water splits to give electrons, oxygen gas is the waste product
Purpose of fermentation is to
make NAD+
make carbon dioxide
oxidize glucose
create a proton gradient
All of the follow occur anaerobically EXCEPT
glycolysis
fermentation
Krebs cycle
If the ETC was blocked by cyanide what would happen?
the mitochondrion would over heat
excessive NAD+ would build up in the cells and blood
oxygen levels would decrease
NADH and FADH2 would be in high levels
A mouse at 10 C would use oxygen _______________ than a snake at 10 C (assume same size)
faster
slower
If the environment temperature is 40 C a snake's body will be 40 C.
True
False
Phosphofructokinase is an enzyme used in glycolysis. Which of the following will make is work more efficiently?
increased levels of ATP
increased levels of AMP
increases levels of oxygen gas
increased levels of pyruvate
ATP synthase directly uses _____________ to spin in order to connect phosphate onto ADP
diffusion from a proton gradient
diffusion from an electron gradient
active transport of a proton gradient
active transport of an electron gradient
What is NOT produced during glycolysis
ATP
NADH
Pyruvate
CO2
Which of the following can still happen without oxygen gas present in the cell
production of NAD+ at the electron transport chain
production of NADH during krebs cycle
production of NADH during glycolysis
oxidative phosphorylation at the ATP synthase
What is this process showing?
substrate level phosphorylation
chemiosmosis
Krebs cycle
glycolysis
Which of the following is FALSE about this process?
the pH of the intermembrane space is more acidic than the matrix
the H+ is using facilitated diffusion as it passes through the ATP synthase
ATP is used to move the H+ against its gradient along the ETC
O2 gas is needed to remove the low energy electrons from the ETC
If this is a yeast solution, what type of gas will be collecting in the inverted graduated cylinder
hydrogen
carbon dioxide
oxygen gas
What is this process showing?
glycolysis
Krebs cycle
alcoholic fermentation
aerobic respiration
Apoptosis is
programmed cell death
mysterious cell death
programmed cellular mutation
mysterious cellular mutation
What is the correct order of nuclear division?
prophase, prometaphase, metaphase, anaphase, telophase
prometaphase, metaphase, prophase, anaphase, telophase
telophase, anaphase, metaphase, prophase
prophase, anaphase, prometaphase, metaphase, telophase
A kinetochore is a special protein located at the ___________ of a chromosome.
membrane
centrioles
centrosome
cell wall
Instead of mitosis, prokaryotes use a process known as ______ to replicate.
meiosis
fusion
diploid budding
fission
Which of the following is characteristic of a malignant rather than a benign tumour?
Develops a blood supply.
Undergoes metastasis.
Cells divide an unlimited number of times.
Grows without needing a growth signal.
Fully grown parent cells split into two halves resulting in two daughter cells with the exact DNA as the parent.
Binary Fission
Budding
Fragmentation
Vegetative Reproductions
Probability of getting heterozygous offspring?
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
A cross between two plants results in 292 tall, yellow plants and 103 short, green plants. What are the most likely genotypes of the parents?
Which genotype represents a male with hemophilia?
When crossing a homozygous recessive with a heterozygote, what is the chance of getting an offspring with the homozygous recessive phenotype?
0%
25%
50%
75%
100%
This pedigree chart is for a family, some of whose members exhibit the recessive trait, woolly hair. Affected individuals are indicated by an open square or circle. What is the likelihood that the progeny of D-3 and D-4 will have wooly hair?
0%
25%
50%
75%
100%
Which of the following is an example of polygenic inheritance?
pink flowers in snapdragons
The ABO Blood group in humans
Skin color in humans
Huntington's disease in humans
A new species of tulip was recently discovered. A population of pure red tulips was crossed with a population of pure blue tulips. The resulting F1 generation was all purple. This result is an example of which of the following?
Complete dominance
Incomplete dominance
Co-dominance
Linkage
I. Response
II. Amplification
III. Reception
IV. Transduction
Which of the following represents the sequence of events in a typical signal transduction pathway?
Which of the following best describes the role in which the G protein is most intimately involved in the process shown above?
Type of cell signaling where the ligand is released and will affect cells in its "neighborhood"
autocrine signaling
juxtracrine signaling
paracrine signaling
endocrine signaling
Type of cell signaling where the ligand is produced at a location distant from its target cell(s)
autocrine signaling
juxtracrine signaling
paracrine signaling
endocrine signaling
What is being depicted in the image?
Amplification of the signal molecule
Enzymatic proteins inhibiting process of the signal transduction pathway
Kinase groups adding dimer groups to other enzymes
Diffusion of molecules within the cell due to the signaling molecule
Testosterone does not affect all cells of the body because __________.
testosterone cannot cross the plasma membrane
not all cells have cytoplasmic receptors for testosterone
not all cells in the body have membrane receptors for testosterone
it is a local regulator
it affects only cells that have ion-channel receptors
The general name for an enzyme that transfers phosphate groups from ATP to a protein is __________.
protein dehydrogenase
protein kinase
protein phosphatase
peptidase
protein cyclase
The source of phosphate for a phosphorylation cascade is __________.
cAMP
protein kinase
GTP
ATP
protein phosphatase
What is Apoptosis?
Programmed cell death
Inflammation of cell
Phagocytosis
Plasmolysis
Why is apoptosis required?
Glycolysis
Cell division: Meiosis and mitosis
Elimination of threats such as viruses and DNA damage
The light reactions occur in the ________ and the calvin cycle takes place in the ________.
Chloroplast / thylakoid membrane
stroma / thylakoid
mesophyl / stomata
thylakoid membrane / stroma
Plants obtain CO2 into the chloroplast by
active transport
diffusion
facilitated diffusion
endocytosis
Which of the following would have the least affect on photosynthetic rate?
increase the temp from 20°C to 30°C
increasing the CO2 from 400 ppm to 600ppm
increasing the light intesity from 40 Watts to 60 Watts
increasing the amount of O2 from 20% to 30% in the air
Where does the oxygen produced in the light dependent reactions of photosynthesis come from?
chlorophyll
carbon dioxide
the atmosphere
water
ATP is made during the light reaction using all of the following EXCEPT
proton pump
hydrogen ion gradient
electron energy from photosystem II
NADPH donating electrons
If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?
NADPH
ATP
Water
Oxygen gas
