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Biology 106 Exam 1 Latest Versions Questions and Answers 2025
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what is normally not a function of the root? a. anchoring in soil b. storage of nutrients c. photosynthesis d. water transport e. mineral transport - Correct Ans-c. photosynthesis which of the following shoots are defined as horizontal shoots that grow along the surface a. stolons b. p...

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  • February 17, 2025
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Biology 106



Biology 106 Exam 1 Latest Versions
Questions and Answers 2025

what is normally not a function of the root?
a. anchoring in soil
b. storage of nutrients
c. photosynthesis
d. water transport
e. mineral transport - Correct Ans-c. photosynthesis

which of the following shoots are defined as horizontal shoots that grow along the
surface
a. stolons
b. pneumatophores
c. tendrils
d. rhizomes
e. bulbs - Correct Ans-a. stolons

the most outer layer of the plant root tissue is...
a. epidermis
b. cortex
c. vascular tissue
d. trichomes
e. none of the above - Correct Ans-a. epidermis

the plant tissue that is primarily specialized in transporting water and minerals over long
distance is called...
a. root hairs
b. xylem
c. phloem
d. mesophyll
e. sieve-tubes - Correct Ans-b. xylem

which statement is not true?
a. roots gain length primarily through cell division
b. roots gain length primarily through elongation growth - Correct Ans-a. roots gain
length primarily through cell division

roots are normally not photosynthetically active. as a consequence they...
a. show a net uptake of carbon dioxide
b. show a net uptake of oxygen - Correct Ans-b. show a net uptake of oxygen


1|Page

,Biology 106

what is the difference between apical and lateral meristems?
a. apical meristems are involved with the growth of the plant while lateral meristems are
involved with the transport of food and water
b. apical meristems allow the plant to grow up and lateral meristems allow the plant to
grow out
c. lateral meristems are involved with the growth of the plant while apical meristems are
involved with the transport of food and water
d.lateral meristems allow the plant to grow up and apical meristems allow the plant to
grow out - Correct Ans-b. apical meristems allow the plant to grow up and lateral
meristems allow the plant to grow out

What are meristems?
a. tissues in most plants containing undifferentiated cells, found in zones of the plant
where growth can take place
b. stem cell areas of dark heartwood, surrounded by light sapwood
c. tissues that have no identity, that generate dermal, ground and vascular tissue, but
stop being active after embryogenesis
d. leaf stems that continuously produce new cells to enable plant growth - Correct Ans-
a. tissues in most plants containing undifferentiated cells, found in zones of the plant
where growth can take place

what would you normally not find in the root?
a. endodermis
b. epidermis
c. pericycle
d. stomata
e. apical mersitem - Correct Ans-d. stomata

phloem sap in contrast to xylem sap normally mainly contains
a. water and amino acids
b. water and sugar
c. sugar and minerals
d. water and minerals - Correct Ans-b. water and sugar

what does the majority of the dry weight of a plant body contain, and where does it
come from
a. water and soil
b. carbon and air
c. phosphate and photosynthesis
d. minerals and soil
e. oxygen and air - Correct Ans-b. carbon and air

movement of the H20 through the cell wall happens in the...
a. apoplast
b. symplast
c. symplast and apoplast

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, Biology 106

d. tonoplast
e. none of the above - Correct Ans-a. apoplast

the casparian strip in the endodermis blocks which pathway
a. apoplast
b. symplast - Correct Ans-a. apoplast

Which of the following statements is true?
1. the apoplastic movement of water occurs exclusively through the cell wall and
adjacent spaces without passing through a membrane
2. solutes present in a cell (or in any solution) increase the water potential
3. the symplastic movement occurs from cell to cell via plasmodesmata
4. membrane permeability depends on the membrane composition and the chemical
nature of the solute
a. 1,2 and 3 only
b. 2 and 4 only
c. 1 and 2 only
d. 1,3 and 4 only - Correct Ans-d. 1,3 and 4 only

which of the following processes likely depends in the activity of the proton pump?
1. sugar uptake
2. potassium uptake
3. water movement across a membrane
a. 1 is correct
b. 2 is correct
c. 3 is correct
d. two of the above are correct
e. three of the above are correct - Correct Ans-d. two of the above are correct

As light intensity increases, the transpiration rate _______. The stomata _______ to
allow more carbon dioxide into the leaf for photosynthesis.
a. increases, close
b. decreases, open
c. decreases, close
d. increases, open - Correct Ans-d. increases, open

what is correct about stomata movement control?
1. stomata opening requires import of potassium ions into the guard cells
2. water is released from guard cells in exchange for potassium ion uptake
3. stomata closure depends on water release from guard cells after export of potassium
a. only one of the above is correct
b. two of the above is correct
c. three of the above is correct - Correct Ans-b. two of the above are correct

how do mineral ions normally enter a plant?
a. through the cuticle

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