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Worksheets2024 Biology EOC Review #1
Total questions: 40
Worksheet time: 3600secs
Which best explains why the rate of a biochemical reaction decreases at high temperatures?
The activation energy increases.
The shape of the enzyme changes.
The enzyme-substrate complex forms.
The bonds between substrates are broken.
A contractile vacuole helps protists eliminate excess liquid. This is a "pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?
DNA
lipids
ATP
ribosomes
This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?
1
2
3
4
Which molecules are joined together to make proteins?
fatty acids
nucleic acids
amino acids
acetic acids
This diagram shows a red blood cell in a beaker that contains a solution with a higher salt concentration than that inside the red blood cell.
What will happen to the red blood cell in this environment?
The size of the red blood cell will remain constant.
The red blood cell will swell at first and then shrink.
The red blood cell will swell from absorbing salt molecules.
The red blood cell will shrink from losing water molecules.
A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude?
Bubbles of carbon dioxide were produced as a result of photosynthesis.
Bubbles of oxygen were produced as a result of photosynthesis.
Bubbles of carbon dioxide were produced as a result of cellular respiration.
Bubbles of oxygen were produced as a result of cellular respiration.
A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?
They will swell because water will move into them.
They will swell because salt will move into them.
They will shrink because water will move out of them.
They will shrink because salt will move out of them.
If energy is needed to move materials into or out of a cell, what is most likely occurring?
active transport
passive transport
osmosis
diffusion
Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?
Substances are moving rapidly across the cell membrane.
ATP is being rapidly consumed near the cellular membrane.
Substances are moving from high to low concentrations.
Substances are moving through channels in the cell membrane.
In a controlled experiment, a limited quantity of glucose was provided for cellular respiration. Researchers measured the quantity of reactants and products at the beginning of the experiment and again after 10 minutes.
How will the quantities of glucose, oxygen, and carbon dioxide most likely change after 10 minutes have passed?
glucose will increase
oxygen will increase
carbon dioxide will decrease
glucose will decrease
oxygen will decrease
carbon dioxide will increase
glucose will decrease
oxygen will increase
carbon dioxide will increase
glucose will increase
oxygen will decrease
carbon dioxide will decrease
As birds prepare for their migration, they go through many changes. Which equation shows the cellular process that occurs more as a bird prepares to fly thousands of kilometers?
6 H2O + 6 CO2 → C6H12O6 +6O2
C6H12O6 +6O2 → 6 H2O + 6 CO2
6 H2O+2O2 + 6 CO → C6 H12O6+ 10 CO2
C6H12O6 + 10 CO2 → 6 H2O+2O2+ 16 CO
What are the products of the light reactions of photosynthesis?
NADPH and ATP
RuBP
Glucose
NADP+
What is the function of the Calvin Cycle?
Produces oxygen
Regenerates ATP
Produces sugar from CO2
Produces carbon dioxide
Where in the ATP molecule is the most energy stored?
the bonds between the phosphate groups
the bond holding the adenosine to the first phosphate group
the bond between the two cyclic structures
there is no energy stored in ATP
Which best explains why muscle cells are different from blood cells?
A mutation occurs during the development of muscle cells but not in blood cells.
Different genes are activated in muscle cells than in blood cells.
Muscles cells experience different environmental influences than blood cells.
Muscle cells are produced by the brain, but blood cells are produced by the heart.
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which has occurred?
The swollen gums have absorbed the saltwater solution
The saltwater solution lowers the temperature in the gums
The salt in the solution has moved against the concentration gradient
The water in the gums has moved from a high to a low concentration of water
Which organism is most likely to use anaerobic respiration?
bird
moss
tree
yeast
Which amino acid sequence can be coded from the DNA sequence CAG TAG CGA?
Valine - Isoleucine - Glycine
Valine - Aspartic Acid - Alanine
Valine - Isoleucine - Alanine
Valine - Phenylalanine - Alanine
Which disease most likely occurs after excessive exposure to ultraviolet radiation?
malaria
asthma
skin cancer
polio
RNA and DNA are which type of organic compound?
carbohydrate
lipid
nucleic acid
protein
Which is an example of osmosis?
potassium ions moving in and out of an animal cell
carbon dioxide moving into the leaf cells of a plant
oxygen moving into the bloodstream from the lungs
water moving into the root cells of a plant
A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
osmosis
photosynthesis
protein synthesis
respiration
Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children?
0% Hh : 100% hh
50% Hh : 50% hh
75% Hh : 25% hh
100% Hh : 0% hh
What will most likely be the result if all of the mitochondria are removed from a plant cell?
It will be unable to carry out respiration
It will lose water through osmosis
It will break down the ribosomes in the cell
It will be unable to photosynthesize
During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which is demonstrated in this situation?
excretion
metabolism
homeostasis
synthesis
What is the function of autotrophs in the carbon cycle?
To use oxygen to produce glucose
To take in excess water
To use carbon dioxide to produce glucose
To feed herbivores
A strand of DNA has these bases:
AGC CAT GTA TAC
What is the complementary DNA strand?
ACG GAT CTA TAG
TCG GTA CAT ATG
TGC CTA GAT ATC
UCG CUA CAU AUG
What is the difference between the full classification of organisms and their scientific names?
The full classification of organisms and their scientific names vary in different countries.
The scientific names of organisms include the order and family of the organisms, but the full classification includes only the species name.
The full classification of organisms will include more categories of organisms than their scientific names.
The scientific names of organisms include a single nomenclature, but the full classification includes various nomenclatures.
What type of organic molecule are enzymes?
carbohydrates
lipids
nucleic acids
proteins
How does the amount of energy resulting from fermentation compare with that of aerobic respiration?
Aerobic respiration results in less energy
Aerobic respiration results in more energy
Each process results in equal amounts of energy
Each process results in variable amounts of energy
During which phase of the cell cycle is the cell growing and preparing for cellular division?
cytokinesis
anaphase
prophase
interphase
The yucca plant releases a strong scent at night when the yucca moth is active. The yucca moth, attracted by the scent, gathers pollen from the yucca flower. The yucca moth then deposits her eggs and the pollen on another plant. This ensures that the plant will be cross-pollinated and that the yucca moth larvae have a steady food supply. Which relationship does this best illustrate?
commensalism
mutualism
parasitism
predation
Which environmental concern is most associated with burning fossil fuels?
global climate change
pollution of ocean waters
ozone layer destruction
decrease in levels of atmospheric carbon dioxide
Which is a step in the process of producing transgenic bacteria?
A plasmid is used to replace a faulty gene in a human cell.
A chain of bacterial amino acids is inserted into human DNA.
A human gene is inserted into a bacterial plasmid.
A mutation is produced in a bacterial cell.
