Biology
Plant Physiology - General Solutions
BD
A mycorrhiza is a mutualistic
relationship between fungal hyphae
and the roots of true plants. The
fungal hyphae increase the
absorptive surface area of the roots
of the plant by alding in the
absorption of water, phosphorus, and
other mineral ions from the soil to
the roots of the plant. The plant is
photosynthetic and provides the
tungus with carbohydrates.
An experiment was conducted to
determine the effect of mycorrhizal
associations on plant growth. Two
groups of plants were grown One
group was planted in soil that had
been sterilized. The other group was
planted in the same type of soil, but
the soil had not been sterilized. All
other factors remained the same
between the two groups. The plants
were allowed to grow for 8 weeks.
Each week, the height in
centimeters) of each plant was
measured. The picture below shows
the plants after a weeks of growth
The data table provides quantitative
data on the growth of the plants over
the 8-week period
PG
Prensis
wered
1
3
Plast Grow
Nostri Sall
20
115
Den
.
23
+
7
Question 29
10 pts
Using the information provided in
the above scenario, make a graph
Visually representing the collected
data. REMEMBER TO: Select an
.
appropriate graph, Title your graph,
, ,
Label the X and Yaxes. Scale the
graph properly, and Provide a key if
needed
You may use the graphing square
provided here or your own paper
When completed either upload the
file or take a picture and upload it
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Question 30
2 pts
In referring to the above scenario
what is the independent variable?
A mutualistic relationship between
fungal hyphae and the roots
Type of soil plants are grown in
Container in which the plants are
grown
Height of the plants
Question 31
4 pts
Read the introduction and provide an
explanation for why one group of
plants grew better than the other
group of plants
12pt Paragraph
BI
O words
p
Question 32
2 pts
Does this experiment indicate that
mycorrhizae are necessary for the
proper growth of plants?
NO
Yes
