WorksheetsEnergy Flow
Total questions: 17
Worksheet time: 10mins
Name
Class
Date
1.
All living things are made of _______, and all living things need _______.
a)
matter, plants
b)
energy, matter
c)
matter, energy
2.
Matter can by _____________ over and over again, and energy is needed for recycling matter. ___________ is not recycled, but it is converted from one form to another.
a)
destroyed, matter
b)
recycled, energy
c)
destroyed, energy
3.
During ____________, _____________ convert light energy into the chemical energy in sugar molecules.
a)
chemosynthesis, consumers
b)
chemosynthesis, producers
c)
photosynthesis, producers
4.
Some sugar molecules are broken down as _________ for the plant. Other sugar molecules as used as part of other molecules that become part of the plant's ________.
a)
matter, leaves
b)
energy, leaves
c)
energy, body
5.
Some producers don't rely on light for energy. Bacteria near hydrothermal vents use sulfur molecules to produce their own ________. Producing energy-rich nutrient molecules from chemicals is called ________.
a)
consumers, photosynthesis
b)
photosynthesis, chemosynthesis
c)
food, chemosynthesis
6.
How can energy be transferred from one organism to another?
a)
The energy stored in the molecules of one organism is transferred to another organism.
b)
The matter stored in the molecules of one organism is transferred to another organism.
c)
The photosynthesis stored in the molecules of one organism is transferred to another organism.
7.
Organisms use energy to heal and repair themselves and grow or to stay warm. Organisms take food to release its energy and use it for ____________ and ___________ or transform it into _________.
a)
maintenance, growth, heat
b)
photosynthesis, chemosynthesis, producers
c)
chemosynthesis, photosynthesis, heat
8.
What is a food chain?
a)
A chain that shows how heat passes from organism to organism.
b)
A way of showing how matter and energy pass from one organism to another.
c)
A representation of all the predator-prey relationships in a community.
9.
What type of organisms are the first step in a food chain?
a)
Consumers
b)
Predators
c)
Producers
10.
Examples of producers:
a)
flies, fungus, and termites
b)
plants and organisms capable of chemo or photosynthesis
c)
lions, deer, and shrubs
11.
What's a food web?
a)
A representation of all the feeding relationships within a community.
b)
A way of showing how matter and energy pass from one organism to another.
c)
A food chain provides a more complete model of feeding relationships within a community.
12.
Look at figure 16, page 52. Which is a food chain you can find within that food web?
a)
berries and flowers, grouse, deer, chipmunk
b)
grasses, marmot, seeds
c)
grasses, butterfly, grouse, red-tailed hawk.
13.
A food web is made up of
a)
one food chain.
b)
only producers.
c)
many different food chains.
14.
Why are food chains commonly limited to no more than five links?
a)
Because as you move up the food chain, consumers need larger quantities of energy and matter.
b)
Because herbivores need to eat large quantities of plants to produce small amounts of body tissues, and the secondary consumers require to eat large amounts of body tissues to grow and do on.
c)
Because the original available energy is stored in plants and only that is passed along the food chain to consumers.
d)
All of the above.
15.
How does an animal use the energy from the food consumes?
a)
To fuel its life processes such as respiration, digestion, and growth. And some energy is given off as heat.
b)
Only to move.
c)
To grow in weight.
16.
What does an energy pyramid represent?
a)
Food pyramids show the different food chains in a community.
b)
Energy pyramids show the same total matter at all levels.
c)
Shows the amount of energy available at each feeding level in an ecosystem.
17.
Why can't the top level contain a large number of organisms?
a)
Because as energy moves from the bottom to the top level, less and less energy is available to higher levels.
b)
Because the original energy from producers is the total energy available to all the organisms in the energy pyramid.
c)
because only about ten percent of the energy available at one level is transferred to the next level.
d)
all of the above
100 %
