Download The Water Cycle

Biology
Name:
Period:
The Water Cycle

Fill in the blanks
Water exists in three states as ______________, ____________, and __________. During
________________________________water leaves the atmosphere and fills ponds,
streams, lakes, and oceans. When it heats up, water enters back into the atmosphere by
_______________________________. There are two other ways to describe how water
enters back into the atmosphere. One way is when organisms convert sugars into usable energy
during the process of _______________________. And ___________________________
is when plant leaves open their guard cells and water escapes through the
__________________. When weather conditions are ideal, water will undergo
___________________________ forming liquid water again for precipitation and it starts all
over again!
Draw a picture of the water cycle: Include a plant, an animal, a body of water, and a cloud.
Use arrows to show the relationships between these biotic and abiotic components of an
ecosystem.
The Nitrogen Cycle

Fill in the blanks:
Nitrogen gas makes up about _______ % of the atmosphere. Bacteria that live on the
_________of plants and in the ________, “fix” the nitrogen first into _______________,
then into __________________. This is a form of nitrogen that plants can use to make
_______________ which are the monomers of __________________. This makes sense
because plants don’t eat other organisms to get the monomers to build their own protein.
Decomposers break down ___________________________________ and release nitrogen
back into the __________. Finally ___________________________bacteria turn the
nitrogen in the ________________ back into _______________ in the atmosphere.
Draw a picture of the carbon cycle. Include a plant, nitrifying bacteria, an animal, a
decomposer, denitrifying bacteria, nitrogen, nitrogen gas, ammonia, and nitrate. Use arrows to
show the relationships between these biotic and abiotic components of an ecosystem.
The Carbon Cycle

Fill in the blanks:
Carbon can be found in ______ forms. ________________ is an example of carbon in a solid
form. Liquid carbon can be found as ________________ in water. Carbon can also be found as
a gas called ____________. This gas is put into the atmosphere during conversion of sugar
into ATP; in the ______________________ of a cell. This process is called
________________________________. Decomposers also release ________ when they
breakdown ___________________________. Plants will remove the carbon dioxide from
the atmosphere and use it to go through the process of carbon fixation during the
_____________________________________ reactions in the ______________ of the
chloroplast. In addition to cycling carbon through an ecosystem, photosynthesis and respiration
also cycle _______________ through an ecosystem. Plants give off oxygen during
__________________________________ and both plants and animals require oxygen to go
through _________________________________.
Draw a picture of the carbon cycle. Include a plant, an animal, a decomposer, fossil fuels,
carbon dioxide, oxygen, and glucose. Use arrows to show the relationships between these biotic
and abiotic components of an ecosystem.
The Carbon Cycle – Part 2
Sketch and label a chloroplast and a mitochondrion like the one in the notes
1. Chloroplasts use sunlight energy during photosynthesis. Add to your drawing the sun
with an arrow from the sun to the chloroplast.
2. Chloroplasts give off oxygen and glucose during photosynthesis. Mitochondria use
oxygen and glucose during cellular respiration. Add this information to your diagram
using arrows.
3. During cellular respiration, mitochondria produce ATP. Add this information to your
diagram by using an arrow showing ATP leaving the mitochondria.
4. Besides light energy, what two other things do chloroplasts use to make glucose?
5. Besides ATP, what do mitochondria give off during cellular respiration?
6. Using arrows, add the information from questions 5 and 6 to your diagram.
7. Explain the flow of carbon through an ecosystem.