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WorksheetsBiological midterm review 2
Total questions: 67
Worksheet time: 2hrs 14mins
What is the highest level of biological organization?
Ecosystem
Community
Population
Biosphere
Which of the following includes all living and non-living components in a specific area?
Community
Population
Ecosystem
Organism
A group of individuals of the same species living in a specific area is called a(n):
Community
Ecosystem
Population
Biosphere
What term describes all the different species living and interacting in a particular area?
Ecosystem
Community
Population
Organism
Which of the following is an example of a biotic factor?
Water
Soil
Trees
Temperature
What is an abiotic factor?
A living component of an ecosystem
A non-living component that affects ecosystems
An organism that breaks down dead material
A type of consumer
Which of the following organisms is a producer?
Deer
Wolf
Grass
Vulture
What type of consumer eats only plants?
Carnivore
Omnivore
Herbivore
Scavenger
Which of the following is an example of a carnivore?
Bear
Deer
Wolf
Raccoon
What role do decomposers play in an ecosystem?
They produce energy through photosynthesis.
They consume other organisms for energy.
They break down dead organisms and recycle nutrients.
They compete with other organisms for resources.
A raccoon is an example of which type of organism?
Specialist
Generalist
Producer
Decomposer
Which organism is considered a specialist?
Raccoon
Bear
Panda
Wolf
What is the primary energy source for producers in an ecosystem?
Water
Soil
Sun
Wind
In a food chain, which of the following represents the correct order of energy flow?
Wolf → Rabbit → Grass
Grass → Rabbit → Wolf
Rabbit → Grass → Wolf
Decomposer → Grass → Rabbit
What is the term for the sequence of energy transfer from producers to consumers?
Food web
Energy cycle
Food chain
Trophic level
Which of the following is NOT a biotic factor?
Bacteria
Animals
Rocks
Plants
Which of the following best describes a generalist organism?
Thrives in specific habitats
Has a varied diet and can live in diverse environments
Only eats one type of food
Is a primary producer
What is the process by which producers make their own food?
Respiration
Photosynthesis
Decomposition
Fermentation
Which of the following is an example of an abiotic factor?
Fungi
Animals
Sunlight
Plants
What is the relationship between biotic and abiotic factors in an ecosystem?
Biotic factors do not depend on abiotic factors.
Abiotic factors are only important for producers.
Organisms rely on abiotic factors to survive.
Biotic factors are always more important than abiotic factors.
What is the main purpose of photosynthesis?
To produce ATP
To create glucose and oxygen
To break down food for energy
To absorb nitrogen from the atmosphere
Which molecule is considered the "energy currency" of the cell?
Glucose
ATP
What process removes carbon dioxide from the atmosphere?
Respiration
Photosynthesis
Decomposition
Combustion
Which of the following is a carbon sink?
Fossil fuels
The ocean
Animals
Combustion
How do decomposers contribute to the carbon cycle?
They absorb carbon dioxide.
They release carbon stored in dead organisms back into the environment.
They produce oxygen for plants to use.
They prevent carbon from re-entering the atmosphere.
What process releases carbon dioxide into the atmosphere?
Photosynthesis
Fossil fuel combustion
Absorption by oceans
Diffusion
How do oceans contribute to the carbon cycle?
They release oxygen through photosynthesis.
They absorb carbon dioxide from the atmosphere.
They prevent plants from taking in CO₂.
They store carbon in the form of glucose.
Which is a product of photosynthesis that benefits most living organisms?
Glucose
Carbon dioxide
ATP
Oxygen
How do animals obtain carbon in the carbon cycle?
By absorbing it from the soil
By eating plants or other animals
By breathing it in directly
By photosynthesis
Cellular respiration releases energy by breaking down which molecule?
Oxygen
ATP
Glucose
Carbon dioxide
What process provides energy for cells in the absence of oxygen?
Krebs Cycle
Fermentation
Glycolysis
Photosynthesis
Where in the cell does most ATP production occur during cellular respiration?
Cytoplasm
Chloroplasts
Mitochondria
Nucleus
What happens to carbon stored in fossil fuels when they are burned?
It is absorbed by plants.
It is released as carbon dioxide.
It is trapped in the atmosphere.
It becomes glucose.
How does deforestation affect the carbon cycle?
It reduces the amount of CO₂ absorbed by trees.
It increases oxygen production.
It decreases the decomposition rate.
It creates more carbon sinks.
Why are oceans considered a carbon sink?
They store carbon dioxide for photosynthesis.
They absorb more CO₂ than they release.
They produce carbon through respiration.
They prevent carbon from entering the soil.
What is released when ATP loses a phosphate group?
Oxygen
Energy
Glucose
Carbon dioxide
Which process describes the breakdown of dead organisms to release carbon?
Photosynthesis
Respiration
Decomposition
Diffusion
What would happen if plants stopped performing photosynthesis?
Carbon dioxide levels in the atmosphere would decrease.
Animals would lose a major source of oxygen.
More ATP would be produced.
The carbon cycle would speed up.
Which of the following describes an anabolic process?
Breaking down glucose into ATP
Building glucose during photosynthesis
Releasing carbon dioxide during respiration
Absorbing carbon dioxide from the atmosphere
Identify the following equation: C₆H₁₂O₆ + O₂ → CO₂ + H₂O + 36ATP
Photosynthesis
Cellular respiration
Fermentation
Glycolysis
Which of these processes occurs in the cytoplasm?
Glycolysis
Krebs Cycle
Electron Transport Chain
Photosynthesis
What is the primary role of the sun in the carbon cycle?
It drives the process of photosynthesis.
It releases carbon dioxide from fossil fuels.
It absorbs carbon dioxide into the soil.
It allows decomposition to occur faster.
Who first used the term "cell" to describe the structures observed in cork?
Robert Hooke
Theodor Schwann
Anton van Leeuwenhoek
Rudolf Virchow
Theodor Schwann is known for concluding that:
All plants are made of cells.
Cells come only from pre-existing cells.
All animals are made of cells.
Cells contain a nucleus.
Which scientist contributed to the development of the cell theory by stating that all cells arise from pre-existing cells?
Matthias Schleiden
Rudolf Virchow
Theodor Schwann
Robert Hooke
What does the cell theory state?
All organisms are multicellular.
Cells arise only through spontaneous generation.
The cell is the basic unit of life.
Cells contain chloroplasts.
Which is NOT part of the cell theory?
All living things are made of cells.
Cells are the basic unit of structure and function.
All cells arise from pre-existing cells.
Cells contain membrane-bound organelles.
What distinguishes prokaryotic cells from eukaryotic cells?
Prokaryotic cells lack a nucleus.
Eukaryotic cells do not have organelles.
Prokaryotic cells are larger.
Eukaryotic cells have free-floating DNA.
Which of the following is true about eukaryotic cells?
They lack a nucleus.
They are smaller than prokaryotic cells.
They contain membrane-bound organelles.
They lack DNA.
Which type of cell would bacteria belong to?
Prokaryotic
Eukaryotic
Plant
Animal
Which structure controls the movement of substances in and out of the cell?
Nucleus
Golgi Apparatus
Cell Membrane
Lysosome
The "control center" of the cell that contains DNA is:
Mitochondria
Ribosome
Nucleus
Chloroplast
The organelle known as the powerhouse of the cell is the:
Ribosome
Nucleus
Mitochondria
Lysosome
Which organelle assists in protein synthesis and has ribosomes attached to its surface?
Smooth Endoplasmic Reticulum (SER)
Rough Endoplasmic Reticulum (RER)
Golgi Apparatus
Lysosome
Lipid production and detoxification of harmful substances occur in the:
Rough Endoplasmic Reticulum (RER)
Smooth Endoplasmic Reticulum (SER)
Mitochondria
Ribosome
What is the function of lysosomes?
Synthesizing proteins
Breaking down cellular waste
Producing ATP
Storing genetic information
Which organelle modifies, sorts, and packages proteins for transport?
Golgi Apparatus
Ribosome
Nucleus
Smooth Endoplasmic Reticulum
The process by which cells maintain a stable internal environment is called:
Respiration
Homeostasis
Photosynthesis
Transcription
Respiration primarily occurs in which organelle?
Lysosome
Golgi Apparatus
Mitochondria
Smooth Endoplasmic Reticulum
Which of the following best describes homeostasis?
Breaking down glucose to release energy.
Maintaining a balanced internal environment.
Building large molecules from smaller ones.
Packaging and transporting proteins.
ATP, the energy currency of the cell, is produced during:
Protein synthesis
Lipid production
Cellular respiration
Cell division
What structure is present in both prokaryotic and eukaryotic cells?
Nucleus
Golgi Apparatus
Cell Membrane
Lysosomes
Which organelle is most directly involved in energy production in animal cells?
Chloroplast
Golgi Apparatus
Mitochondria
Smooth Endoplasmic Reticulum
In eukaryotic cells, ribosomes are responsible for:
Producing energy.
Synthesizing proteins.
Storing DNA.
Modifying proteins.
Which process is vital for removing waste from the cell?
Homeostasis
Golgi Apparatus packaging
Lysosome function
Respiration
Which scientist used a microscope to observe cork and coined the term "cell"?
Rudolf Virchow
Robert Hooke
Matthias Schleiden
Anton van Leeuwenhoek
Which statement about the nucleus is true?
It is found in prokaryotic cells.
It controls all cell activities.
It produces proteins.
It is the site of respiration.
