Activities Quiz
1.

Click on the diagram to start the animation.
What name is given to the process seen in this animation? (Activity 37A)

root hair exchange
ion pumping
carbonation
anion exchange
cation exchange


2.

The release of CO2 into the soil results in the formation of _____. (Activity 37A)

hydrogen ions and oxygen ions
sodium ions and chloride ions
hydrogen ions and carbonate ions
carbonate ions and oxygen ions
potassium ions and calcium ions


3.

What process is the source of the CO2 that root hairs release into the soil? (Activity 37A)

photosynthesis
respiration
photolysis
photosynthesis and respiration
respiration and photolysis


4.

The binding of H ions to soil particles _____. (Activity 37A)

displaces mineral cations
displaces mineral anions
promotes the clumping of soil particles
is counteracted by acid precipitation
displaces nitrates from soil particles


5.

Which of these ions is most likely to be leached from the soil? (Activity 37A)

potassium ions
magnesium ions
calcium ions
chlorine ions
iron ions


6.

Acid precipitation _____. (Activity 37A)

promotes the attachment of anions to soil particles
enhances the diffusion of cations into root hairs
has no effect on soil fertility
increases soil fertility
decreases soil fertility


7.

How do cations enter root hairs? (Activity 37A)

osmosis
active transport
endocytosis
phagocytosis
diffusion


8.

Assimilation is indicated by the letter(s) _____. (Activity 37B)

question 8

A
B
C
C and D
D and E


9.

Nitrogen-fixing bacteria is(are) indicated by the letter(s) _____. (Activity 37B)
question 9

A
A and B
B and C
C and D
D and E


10.

Nitrification is indicated by the letter(s) _____. (Activity 37B)

question 10

A
B
B and C
B and E
D and E


11.

Denitrifying bacteria convert _____ to _____. (Activity 37B)

ammonium ... nitrogen gas
nitrates ... nitrogen gas
nitrogen gas ... ammonium
nitrogen gas ... nitrates
nitrogen gas ... nitrites


12.

Nitrifying bacteria convert _____ to _____. (Activity 37B)

nitrogen gas ... ammonium
nitrogen gas ... nitrates
ammonium ... nitrites
nitrates ... nitrogen gas
ammonium ... nitrogen gas


13.

_____ removes nitrogen from the atmosphere. (Activity 37B)

Denitrification
Nitrification
Mineralization
Nitrogen fixation
Assimilation


14.

Which one of these is a nitrate? (Activity 37B)

NO2
NH4
NH2
SH
NO3


15.

Which one of these is a nitrite? (Activity 37B)

NO2
NH4
NH2
PO4
NO3



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