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WorksheetsBiology final study
Total questions: 36
Worksheet time: 29mins
Which organism in the experiment has an average heart rate of 50 beats per minute?
Cat
Whale
Horse
Given the above experimental results, which of the following would be the most likely conclusion?
Animals with higher heart rates live longer.
Animals with lower heart rates live longer.
Cats live the longest because they have 9 lives.
There is no relationship between heart rate and life expectancy.
Which of the following cell structures enables plants to make carbohydrates from carbon dioxide and water?
Cell wall
Central vacuole
Chloroplast
Nucleus
Which process is best represented by the following chemical equation?
sunlight + 6H2O +6CO2 → C6H12O6 + 6O2
Cellular respiration
Photosynthesis
Glycolysis
fermentation
Autotrophs, such as plants, use light to make their own food. What happens to the light absorbed by a plant during photosynthesis?
It’s converted to kinetic energy
It is converted to chemical energy which the plant stores.
It powers a reaction that produces carbon dioxide and water.
It powers a reaction that produces oxygen and carbon dioxide.
The part of cellular respiration that needs oxygen takes place inside the
Nucleus
Mitochondria
thylakoids
Cytoplasm
Which of the following molecules found in the food we eat is most commonly broken down to make ATP?
Carbohydrates
Lipids
Proteins
Vitamins
The chemical equation for cellular respiration is shown below. Fill in the missing molecule.
C6H12O6 + 6O2 → 6H2O + 6CO2 + _________
Glucose
Water
Energy (ATP)
Sunlight
Grasses, hawks, mice, and snakes are all organisms that live in a prairie. In the prairie food chain, which is the correct arrangement according to matter and energy flow?
hawk → snake → mouse → grass
grass → snake → mouse → hawk
grass → mouse → snake → hawk
hawk → mouse → snake → grass
Which organisms help convert gaseous nitrogen into ammonia in the nitrogen cycle?
Bacteria
Trees
Squirrels
Grasses
If the energy pyramid shown started with 25,000 k/cal, how much energy would be left at the top trophic level?
2.5 k/cal
250 k/cal
0.25 k/cal
250,000 k/cal
Which biogeochemical cycle does the diagram in Figure 13.1 show?
Nitrogen cycle
Water cycle
Oxygen cycle
Carbon cycle
Photosynthesis and cellular respiration are interrelated processes. During which biogeochemical cycle do the biological processes of photosynthesis and cellular respiration play key roles?
Carbon cycle
Nitrogen cycle
Hydrogen cycle
Phosphorus cycle
Which statement best explains how destruction of forests could affect the carbon cycle?
destroying trees would cause CO2 levels in the atmosphere to drop dangerously low
a loss of trees would have only a small effect on the carbon cycle, because they are green all year long
forest destruction would cause only a small increase in CO2 levels if the roots were left to remove CO2 from the air
cutting down trees could increase atmospheric CO2 levels, because trees that could take up CO2 would be removed
What is the carrying capacity of the graph?
600
800
8000
1000
If the amount of food or resources available increases, the carrying capacity for a population ____________
Stays the same
Increases
Decreases
Fluctuates
What happens if a population grows past its carrying capacity?
The population keeps growing, and growing, and growing.
The population will eventually go back to original carrying capacity
The entire species will go extinct
The carrying capacity just increases
What organisms are at the bottom of an energy pyramid?
Scavengers
Producers
Decomposers
Consumers
Which model above correctly shows energy flow in an ecosystem?
A
B
C
D
If 25,000 kg of vegetation is planted in the ecosystem above, how would the lion population change?
Decrease by 2,500 kg
Increase by 250 kg
Decrease by 25,000 kg
Increase by 250,000 kg
Field mice were recently brought from England to Australia. The field mouse population in Australia has grown so fast that they eat an average of $4 billion of wheat every year. Their fast growth is caused by?
The mice like to reproduce
A lack of a native species to eat the field mouse
Abundant food supply
Both B and C
If an invasive species is brought into an ecosystem which organisms will be affected by their presence?
Producers
Consumers
Predators
All organisms will be harmed
Identify the macromolecule in the picture on the above (glucose).
Lipids
Protein
Nucleic acids
Carbohydrates
What is the purpose of an enzyme?
give permission for a reaction to begin
raise activation energy
speed up reactions
control how many reactions occur
An enzyme speeds up a reaction by ___________
lowering the activation energy
raising the activation energy
Releasing energy
Absorbing energy
Above normal body temperature, the body’s natural biological enzymes will __________
Work properly
No longer work properly
Be affected
Bind to a different substrate
What is the cell membrane mostly made of?
Proteins
Phospholipids
cholesterol
Fluid mosaic model
ATP is a form of energy needed for ___________
passive transport
Facilitated transport
Active transport
Osmosis
Using the image shown above, where will the water move?
Into the cell
Outside of the cel
It will not move
It will move equally in and out
The structure shown above has what function?
Contains DNA
Produces energy
Performs photosynthesis
Digests worn out cell parts
Which two organelles are only found in plants?
Cytoplasm and chloroplast
Cell wall and cell membrane
Chloroplast and cell membrane
Cell wall and chloroplast
Which organelle is like the postal service of the cell, sending packages to anywhere they are needed in the cell?
Lysosomes
Golgi apparatus
Nucleus
Mitochondria
The basic unit of life is the _______
Cell
Organelle
Atom
Nucleus
Which is the correct order for levels of organization from simple to complex?
organ, tissue, cell, organism, organ system
organism, organ system, tissue, cell, organ
cell, tissue, organ, organ system, organism
cell, organ , tissue, organ system, organism
What is the difference between a cell and a tissue?
a cell is the basic unit of life; a tissue is a group of cells that work as one.
a cell is the basic unit of life; a tissue is a group of different cells.
a cell is a group of organs; tissue is a group of different cells.
a cell is a group of tissues; tissue is the basic unit of life.
Arrange the steps of the Scientific Method in the correct order.
observation → conclusion → experiment → results → analysis → research → hypothesis
experiment → hypothesis → results → research → analysis → observation → conclusion
observation → research → hypothesis → experiment → results → analysis → conclusion
conclusion → analysis → results → experiment → hypothesis → research → observation
