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WorksheetsS1 Biology Exam Review
Total questions: 100
Worksheet time: 50mins
What is biology?
Study of life
Study of fossils
Study of rocks
Study of ecosystems
How are the scientific and non-scientific uses of the word "theory" different?
A scientific theory is based on extensive evidence. A non-scientific theory is a guess
A scientific theory is a guess. A non-scientific theory is based on extensive evidence
They are the exact same
A scientific theory is an idea that cannot be tested. A non-scientific theory is an idea that can be tested
What is needed to change a theory?
New evidence and new technology
You can't change a theory
A new scientist
A change of opinion
How are scientific claims, evidence, and reasonings different?
Claims are statements on the result of an investigation or research. Evidence is the measurable data used to support the claim. Reasoning explains how the evidence supports the claim and connects it to other scientific principles.
They are all the same
Claims take a guess on what may happen. Evidence is the results. Reasoning is why your guess happened/didn't happen.
Claims say what you think. Evidence is all your opinion and no fact. Reasoning is why you're right.
What are independent and dependent variables?
Independent variables are changed by the experimenter. Dependent variables are the result of an experiment, often altered by the independent variable.
Dependent variables require light. Independent variables don't directly need light.
Variables that represent the exact same thing and have no differences.
Dependent variables need a person to change them for an experiment, whilst independent variables don't need anyone to change them for an experiment because they will change on their own.
What are experimental constants and how are they used?
Experimental constants are things kept the same in an experiment, used to reference the changes throughout the experiment
Experimental constants are things changed in an experiment, used to get different results
Experimental constants are the people who run the experiment, used to test things.
What is a conclusion?
The final idea of an experiment, the summary of results. Usually very detailed.
The start of an experiment.
A vague statement on what happened.
The end of an essay.
What seven traits do biologists say are common to all living things?
Cells, metabolism, homeostasis, growth, reproduction, response, heredity.
Organelles, cells, tissue, organs, organ systems, organisms.
Sight, smell, taste, touch, hearing.
Biologists can't agree on what makes up a living thing.
What are cells and how are they related to living things?
They are the basic unit of all life.
They are where memories are stored.
They contain the DNA needed to determine how something looks or works.
Cells are not connected to living things
What is the difference between unicellular and multicellular organisms?
Unicellular organisms are made of one cell, multicellular are made up of many cells
Unicellular organisms are made up of many cells, multicellular are made up of one cell
They are the exact same
Unicellular organisms don't work as well as multicellular organisms
What is metabolism?
All the chemical reactions in an organism
The ability to have relatively stable internal conditions
The sexual or asexual reproduction of organisms
The basic unit of all life
What is homeostasis?
The ability to have relatively stable internal conditions
All the chemical reactions in an organism
Passing along genes to offspring
Growing over time
What is reproduction?
The sexual or asexual creation of an organism
The ability to maintain relatively stable internal conditions
Passing along genes to a new organism
All the chemical reactions in an organism
How does metabolism relate to energy?
Bringing in and using energy
It doesn't relate to energy
By destroying energy
By moving oxygen throughout the body
What is a common example of homeostatic regulations in the human body?
Oxygen levels
Speed
Height
Weight
Why is reproduction important?
The continuation of a species
It isn't
So you don't overheat and get heat stroke
To get rid of excess energy
What is an organic molecule?
A molecule with both carbon and hydrogen atoms
A molecule used to make plants
The basic unit of all life
A molecule that doesn't contain carbon and hydrogen atoms
What is a carbohydrate?
The easiest source of food energy
A fat
The most complex macromolecule
A type of nucleic acid
What is a lipid?
A fat
Easiest source of food energy
A type of nucleic acid
A type of protein
What is a protein?
The most complex macromolecule
Easiest source of food energy
A type of nucleic acid
A type of fat
What is an example of a carbohydrate?
Glucose
Steroid
Butter
Fiber
What is an example of a lipid?
Oil
Starch
DNA
Antibodies
What is an example of a protein?
Enzymes
Lactose
RNA
Butter
What determines the function of a protein?
Its shape
Its components
The ribosome's shape
The ribosome's components
What is a nucleic acid?
Long chains of nucleotides
A component of proteins
A bad carbohydrate
A type of lipid
What are the MAIN two nucleic acids?
DNA & RNA
Steroid & Butter
Fiber & Enzymes
Glucose & Lactose
What is activation energy?
The amount of energy needed to start a chemical reaction
The amount of energy needed to stop a chemical reaction
The amount of energy needed to prevent a chemical reaction from happening
Energy from the sun
How do enzymes affect activation energy?
They lower the activation energy needed
They raise the activation energy needed
They don't affect it at all
They boost the amount of activation energy available
Is this showing a net RELEASE of energy?
Yes
No
What is the name for this reaction?
Exothermic Reaction
Endothermic Reaction
Is this showing a net ABSORPTION of energy?
Yes
No
What is the name of this reaction?
Endothermic Reaction
Exothermic reaction
What is a population?
A group of organisms of the same species in the same place at the same time
A group of organisms of different species in the same place at the same time
A group of organisms of the same species in different places at different times
A group of organisms of different species in different places at different times
What is a species?
A group of organisms that are closely related and naturally mate to produce fertile offspring
A group of organisms that are not related and naturally mate to produce fertile offspring
A group of organisms that are closely related and unnaturally mate to produce infertile offspring
A group of organisms that are closely related and naturally mate to produce infertile offspring
What is demography?
The statistical study of populations
The statistical study of species
The statistical study of ecosystems
The statistical study of bugs
What are three significant considerations of demography?
Population size, population density, population dispersion
Population weight, population height, population size
Population size, population diversity, population availability
There aren't any significant considerations of demography
What are the different dispersion patterns of a population?
Clumped, uniform, random
Square, Circle, Triangle
Linear, waved, curved
Height, weight, age
What are the four factors that directly affect population size?
Birth rate, death rate, immigration, and emigration
Food, water, shelter, mate availability
Weather, temperature, latitude, longitude
There aren't any factors
Is this a K-strategist or an r-strategist? It has many young, doesn't give them parental care, has a short life, and they have large population sizes
r-strategist
K-strategist
Is this a K-strategist or an r-strategist? It has few young, gives them parent care, has a long life, and they have small population sizes
r-strategist
K-strategist
What is exponential growth?
A growth model that assumes there isn't any limiting factors
A growth model that assumes there are limiting factors
What is logistic growth?
A growth model that assumes there isn't any limiting factors
A growth model that assumes there are limiting factors
Is this density dependent or density independent? A disease struck a well populated city and spread quickly.
Density Dependent
Density Independent
Is this density dependent or density independent? An earthquake occurred in California and as a result, five people got injured.
Density Dependent
Density Independent
What is a niche?
An organism's position within an ecosystem
An organism's position within its home
An organism's special interest in an ecosystem
Something unique
Biotic and Abiotic factors determine an organism's niche
True
False
How is resource partitioning different from competitive exclusion?
Resource partitioning is when competing species change their niches as to not compete. Competitive exclusion is when the other species gets to extinction
Resource partitioning is when competing species fight each other to elimination. Competitive exclusion is when competing species change their niches as to not compete
They are the same
Resource partitioning is when they split everything 50/50. Competitive exclusion is when they fight each other so only one species gets a resource, but they don't kill each other
What is coevolution?
Back-and-forth evolution between interacting species
Back-and-forth evolution between species that never interact
One-sided evolution between interacting species
One-sided evolution between species that never interact
Is this an example of coevolution? Snakes evolved to be able to handle the poisonous newt's poison, so the newt just gave up and didn't evolve again
No
Yes
Is this an example of coevolution? Giraffes wanted to eat the thorny acacia trees, so they evolved longer tongues to reach the yummy leaves
No
Yes
What is symbiosis?
Two or more species that live together in a long-term association
The back-and-forth evolution between interacting species
Two or more species that live together in a short-term association
The organism's job in an ecosystem
What are the three types of symbiosis?
Mutualism, Commensalism, Parasitism
Predation, Competition, Elimination
Pack hunting, loners, rogues
None of the above
Which is mutualism?
Both benefit
One benefits, other unaffected
One benefits, other harmed
None of the above
Which is commensalism?
Both benefit
One benefits, other unaffected
One benefits, other harmed
None of the above
Which is parasitism?
Both benefit
One benefits, other unaffected
One benefits, other harmed
None of the above
How is an ecosystem defined?
A community of organisms, along with all the physical aspects of an environment
Only the living organisms inside of an environment
Only the non-living organisms inside of an environment
The plant life within an environment
What is the difference between abiotic and biotic?
Abiotic is non-living things, biotic is living things
Abiotic is living things, biotic is non-living things
They are the same
Abiotic is animals, biotic is animals
What is succession of an ecosystem?
The gradual change of species in a community
When a new top predator takes over after the previous top predator died
When an ecosystem is doing well and thriving
When an ecosystem is doing terribly and dying
What are the two types of succession?
Primary and Secondary
Dependent and Independent
Prokaryotic and Eukaryotic
Prehistoric and Historic
When does primary succession occur?
When an ecosystem is newly formed
After a previous ecosystem has suffered and everything is dead
When does secondary succession occur?
When an ecosystem is newly formed
After a previous ecosystem has suffered and everything is dead
What is a biome?
A major biological community in a large area of land
A major biological community in a large area of sea
A major biological community in a large, underground area
A minor biological community in a large area of land
Which biome has the greatest biodiversity?
Tropical rainforests
Deserts
Temperate grasslands
Taigas
How does latitude have an impact on the characteristics of a biome?
Determines the humidity, temperature, and how much light a biome has
Determines what time of day it becomes day or night
Determines how many animals decide to live there
What biome has lone grazers that can migrate large distances and survive cold temperatures, and has trees that are mostly evergreens?
Taiga
Tundra
Desert
Savanna
What biome typically has herds of grazers that can survive warm temperatures with long periods without much water/food?
Savanna
Desert
Taiga
Temperate forests
Which is NOT a major advantage to wetlands?
Gets rid of dead organisms faster
Lots of biodiversity
Minimize flooding and erosion
Helps with pollution
What WOULDN'T happen if we lose wetlands?
We discover a new species
We lose biodiversity
Increase in pollution
Lots of flooding and erosion
What role do decomposers have in nutrient cycles?
Break down dead/rotting organisms
Produce food for herbivores
Hunt herbivores for meat
Eat both plants and animals
What is the difference between a food web and a food chain?
A food web shows nearly every organism in an ecosystem, a food chain only shows a certain line of energy transfer
A food web only shows a certain line of energy transfer, a food chain nearly every organism in an ecosystem
They are the same
What are food webs and food chains supposed to show the movement of?
Energy
Animals
History
Plants
The trophic levels go like this; producers make their own food, herbivores eat the producers, carnivores eat the herbivores, top carnivores eat the carnivores, detritivores eat any dead organism, and omnivores eat both plants and animals.
True
False
What is the role of a top carnivore?
Manage the populations of carnivores and herbivores
Manage the population of only carnivores
Manage the population of only herbivores
Prevent carnivores from eating the herbivores
What percent of energy makes it to the next trophic level, and what percent of energy is lost?
10% goes on, 90% is lost
90% goes on, 10% is lost
All of it goes on and none of it is lost
50% goes on and 50% is lost
What is a food/energy pyramid?
A pyramid showing the transfer of energy in an ecosystem
A pyramid showing the difference between needs and wants
A pyramid where food and energy is stored
A pyramid that shows which food animals are the coolest
What is the significant role of biogeochemical cycles?
Cycle chemicals between living and nonliving things
Cycle chemicals only between living things
Cycle chemicals only between nonliving things
They do not have significant roles
How is the plentiful nitrogen in the air obtained by living organisms?
Bacteria takes the nitrogen into the soil, which then goes to plants, which either we eat, or we eat something that ate the plants
We breathe it in
It is unobtainable
We drink it after we put it in water
What is the ultimate energy source that fixes carbon dioxide into organic molecules necessary for energy and life?
Sunlight
Moon light
ATP
Oxygen
What is the name of the process that fixes atmospheric carbon into solid carbon compounds?
Photosynthesis
Cellular respiration
Fermentation
Glycolysis
True or False, the levels of organization for living systems from cells to organisms is this: Cells, tissues, organs, organ systems, organisms
True
False
What does cell theory say cells are the basic unit of?
Life
Death
Atoms
Prisons
What are specialized cells?
Cells with certain genes that allow them to perform specific tasks
Cells that believe they are better than everyone else
Cells that perform better than other cells at their task
What is gene expression?
Only certain genes are read and followed in a specific cell
Only certain genes allow a cell to work at all
The shape/size of a gene
The way a gene feels
What is an advantage to cells staying relatively small?
All of the above
An organism can get bigger and have more specialized cells
They are able to maximize surface area to volume for the best function
Each cell has less work it needs to do because there can now be more specialized cells
What is the role of a cell membrane?
Regulate what enters and leaves a cell
Provide structure for a cell
Create ribosomes for a cell
Store the DNA in a cell
True or False, Eukaryotic cells have membrane bound organelles, while Prokaryotic cells don't
False
True
Which of these organisms is NOT eukaryotic?
Bacteria
Fungi
Plants
Animals
What is an organelle?
An internal cellular structure, surrounded by its own membrane, that performs a specific action in a cell
A structure in an animal's body that performs a certain task, is usually part of a larger organ system
A type of cell, used to prevent diseases
A type of organism that is clear so you can see its organs
What are the four main parts of a mitochondrion?
Outer membrane, inner membrane, matrix, cristae
Birth rate, death rate, immigration and emigration
Cell, tissue, organ, organ system
ATP, ADP, NAD+, NADH
What is the role of a cell wall in plants, bacteria, and fungi?
Provide structure for their cells
Prevent them from getting sick
Make their cells more wobbly
Allow them to get sick easier
When using a microscope, what is magnification?
Using lenses to make an object appear larger in order to examine it
Using lenses to make an object appear smaller in order to examine it
A form of symbiosis where both sides benefit
A type of lens
In order to figure out magnification for a microscope, you multiply the eyepiece lens by the objective lens to get the total magnification. Example: 10 (eyepiece) x 40 (objective) = 400 (total)
True
False
What is the role of the golgi apparatus?
Repackage proteins for export from the cell
Create ribosomes
Create proteins
Provide structure for the cell
What is the role of the rough endoplasmic reticulum (Rough E.R.)?
Help ribosomes create and package proteins that will leave the cell
Break down and recycle old/damaged cell parts and waster
Manufacture lipids and detoxify certain harmful chemicals
Contain most of the DNA for a eukaryotic cell
What is the role of the smooth endoplasmic reticulum (Smooth E.R.)?
Help manufacture lipids and detoxify certain harmful chemicals
Help ribosomes create and package proteins that will leave the cell
Repackage proteins for export from the cell
Store things inside of a plant cell
What is the role of lysosomes?
Break down and recycle old/damage cell parts and waster
Make and assemble ribosomes
Capture light energy to conduct photosynthesis in plant cells
Produce ATP
What is the role of the cytoskeleton?
Provide cell structure for animal cells
Provide cell structure for plant cells
Contain most of the DNA for a eukaryotic cell
Capture light energy to conduct photosynthesis in plant cells
What are vacuoles?
Compartment-like organelles that store things (like glucose or water) inside of a plant cell
Vesicles that break down and recycle old/damaged cell parts and waste
The site of photosynthesis within plant cells
A type of cell that is very few, but has a tail that optimizes movement
What is the role of ribosomes?
Help manufacture proteins
Break down and recycle old/damaged cell parts and waster
Contain most of the DNA in a eukaryotic cell
Capture light energy to conduct photosynthesis within a plant cell
What is the role of the nucleus?
Contain most of the DNA for a eukaryotic cell
Make and assemble ribosomes
Make ATP
Provide structure for animal cells
