Free Printable Biology Test Review

Worksheets

Biology Test Review

Total questions: 28

Worksheet time: 14mins

Name

Class

Date

What is combustion?

The big bang.

When organism die and they are broken down by decomposers carbon is released into the air and the soil.

Carbon is released into the atmosphere when we burn of coal, oil, and grass.

Carbon is released into the atmosphere when we burn of coal, fossil fuels and other hydrocarbons.

What do animals get from eating plants that give them carbon?

Muscle strength, agility, and speed

Starches and sugar.

Toxins, waste, and harmful substances

Water, vitamins, and minerals

How do plants take in carbon dioxide?

roots

flowers

stomata

leaves

When organisms die and are broken down in the nitrogen cycle, what is the process called? (clue 2 answers)

Nitrification

nitrogen fixation

Ammonification

Nitrogen mineralization

When organic N is converted to Nh4 the process is called?

nitrification

ammonification

denitrification

nitrogen fixation

In the nitrogen cycle what is assimilation?

Process of transporting nitrogen within the body

Process of converting nitrogen into nitrites

Process of releasing nitrogen from tissues and organic compounds

Process of plants absorbing nitrogen into ttheir soil and roots

What is NO3?

nitrates

nitrogen trioxide

nitric oxide

nitrites

What is algal bloom?

Pollution in water

Lack of algae

Presence of fish

Excessive growth of algae

What is the increase of phosphorus nitrogen in aquatic ecosystems called?

oligotrophication

eutrophication

hypoxia

denitrification

10.

What is this process CO2+H2O --> C6H12O6 called?

respiration

combustion

evaporation

photosynthesis

11.

What is the formula for glucose?

C12H22O11

H2O

CO2

C6H12O6

12.

What all processes happen in the carbon cycle?

erosion, weathering, sedimentation, lithification

photosynthesis, respiration, decomposition, combustion,

photosynthesis, respiration, decomposition, combustion, runin

photosynthesis, respiration, decomposition, evaportion,

13.

How much energy is transferred through the trophic levels?

20%

50%

80%

10%

14.

What is the formula for smog?

N2O

Nitrogen Oxides

NO3

15.

What is the formula for Nitrification?

NO3- -> NO2- -> NH3/NH4+

NH3/NH4+ -> NO2- -> NO3+

NH3/NH4+ -> NO2- -> NO3-

NO2- -> NH3/NH4+ -> NO3-

16.

What is the formula for denitrification?

NO3- -> N2

2NO- -> N2O -> O2

NO3- -> 2NO2- -> N2O -> NO2

2NO3- -> 2NO2- -> N2O -> NO

17.

How much of the earth's atmosphere is N2?

10%

78%

25%

50%

18.

Nitrogen is an essential component in what three things?

RNA, proteins, and DNA

oxygen, carbohydrates, and lipids

water, carbohydrates, and lipids

carbon dioxide, proteins, and lipids

19.

What are the two ways to fix nitrogen?

Mechanical nitrogen fixation and organic nitrogen fixation

Physical nitrogen fixation and artificial nitrogen fixation

Chemical nitrogen fixation and natural nitrogen fixation

Biological nitrogen fixation and environmental nitrogen fixation

20.

What is an example of nitrogen-eating bacteria?

E. coli

Streptococcus

Salmonella

Rhizobium

21.

What is the order of the Nitrogen cycle?

nitrogen fixation, ammonification nitrification, assimilation, , denitrification

nitrogen fixation, nitrification, assimilation, denitrification, ammonification

nitrogen fixation, assimilation, nitrification, ammonification, denitrification

nitrification, nitrogen fixation, assimilation, ammonification, denitrification

22.

What is an environmental event that causes nitrogen fixation?

Lightning

Nitrogen-fixing Bacteria

Earthquake

Tornado

23.

What is ocean acidification?

The process of the ocean becoming less acidic due to the absorption of carbon dioxide from the atmosphere.

The process of the ocean becoming more acidic due to the absorption of carbon dioxide from the atmosphere.

The process of the ocean becoming more alkaline due to the absorption of carbon dioxide from the atmosphere.

The process of the ocean becoming more acidic due to the release of carbon dioxide into the atmosphere.

24.

What is the formula for respiration?

C6H12O6 + 6O2 -> 6CO2 + 6H2O + Glucose

C6H12O6 + O2 -> CO2 + H2O + ATP

C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy

C6H12O6 + 6O2 -> 6CO2 + 6H2O

25.

What will deforestation cause in the carbon cycle?

Increase in oxygen levels

No effect on carbon dioxide levels

Increase in carbon dioxide levels

Decrease in carbon dioxide levels

26.

What is the formula for the two steps in nitrification?

Ammonia (NH3) is reduced to nitrite (NO2-) and then nitrite (NO2-) is further reduced to nitrate (NO3-)

Ammonia (NH3) is converted to nitrate (NO3-) and then nitrate (NO3-) is further converted to nitrite (NO2-)

Ammonia (NH3) is converted to nitrite (NO2-) and then nitrite (NO2-) is further converted to ammonia (NH3)

Ammonia (NH3) is oxidized to nitrite (NO2-) and then nitrite (NO2-) is further oxidized to nitrate (NO3-)

27.

True or False: We eat/consume carbon?

True

Sometimes

False

Only in certain foods

28.

How does the ocean contribute to the carbon cycle?

The ocean has no impact on the carbon cycle.

The ocean releases carbon dioxide into the atmosphere.

The ocean converts carbon dioxide into oxygen.

The ocean absorbs and stores carbon dioxide from the atmosphere.

100 %

Biology Test Review

Total questions: 28

Worksheet time: 14mins

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