Part 1 of 8 - 13.32/ 16.65 Points
Question 1 of 30
0.0/ 3.33 Points
If you were a biologist studying the characteristics of chordates, which of the following would not be included in your studies?
A.The notochord
B.The dorsal tubular nerve cord
C.The postanal tail
D.The vertebral column
E.Pharyngeal pouches
Feedback: Among the chordates, only vertebrates possess a vertebral column; it is not a characteristic shared by all chordates.
Question 2 of 30
3.33/ 3.33 Points
Animals which have definite right and left halves are said to have
A.radial symmetry.
B.spherical symmetry.
C.bilateral symmetry.
D.asymmetry.
E.trilateral symmetry.
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Question 3 of 30
3.33/ 3.33 Points
If you were studying animals which have a body cavity completely lined with mesoderm such as molluscs and arthropods, you would be studying
A.pseudocoelomates.
B.radial symmetry.
C.acoelomates.
D.coelomates.
E.deuterostomes.
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Question 4 of 30
3.33/ 3.33 Points
Which of these is not a characteristic of a shark?
A.Ability to sense pressure of other swimming objects
B.A sucker used to attach to prey
C.Skeleton of cartilage
D.Ability to sense electric currents in the water
E.Belongs to the class chondrichthyes
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Question 5 of 30
3.33/ 3.33 Points
Which of the following is a cephalopod?
A.Snail
B.Oyster
C.Nudibranch
D.Clam
E.Squid
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Part 2 of 8 - 13.32/ 16.65 Points
Question 6 of 30
3.33/ 3.33 Points
If you were studying the regions of the plant where leaves are attached to the stem you would be studying
A.the vascular tissues.
B.the nodes.
C.the leaf blades.
D.the terminal buds.
E.the internodes.
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Question 7 of 30
3.33/ 3.33 Points
The tissue which regulates the entrance of water and minerals into the vascular cylinder of a root is the
A.endodermis.
B.pith.
C.epidermis.
D.cuticle.
E.cortex.
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Question 8 of 30
3.33/ 3.33 Points
The stomata of the leaves open and close based on
A.oxygen availability.
B.carbon dioxide availability.
C.mineral availability.
D.water availability.
E.light availability.
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Question 9 of 30
3.33/ 3.33 Points
Which of the following is not a function of the root system in plants?
A.To store carbohydrates
B.To absorb water
C.To anchor the plant
D.To absorb minerals
E.To absorb carbohydrates
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Question 10 of 30
0.0/ 3.33 Points
If you were a plant biologist studying the portion of a herbaceous eudicot stem that stores water and the products of photosynthesis, you would be studying which of the following types of tissue?
A.The vascular bundle
B.The pith
C.The cortex
D.The epidermis
E.The endodermis
Feedback: In an herbaceous dicot stem, the central pith stores water and the products of photosynthesis.
Part 3 of 8 - 13.32/ 16.65 Points
Question 11 of 30
3.33/ 3.33 Points
Which of the following belong to the phloem?
A.Tracheids
B.Palisade mesophyll cells
C.Sieve-tube members
D.Xylem
E.Vessel elements
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Question 12 of 30
0.0/ 3.33 Points
Xylem sap includes water, but phloem sap does not.
True
False
Feedback: Water constitutes a large part of xylem sap and phloem sap, the contents of xylem and phloem. Transport in both xylem and phloem is dependent on the properties of water and on pressure relationships.
Question 13 of 30
3.33/ 3.33 Points
If you were a plant physiologist studying inorganic nutrients which plants need in large quantities you would be studying
A.macronutrients.
B.sugars and starches.
C.essential elements.
D.water.
E.micronutrients.
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Question 14 of 30
3.33/ 3.33 Points
A plant physiologist is studying the evaporation of water through the stomata of leaves. Based on this information you would conclude that he or she is studying
A.hydroponics.
B.adhesion.
C.root pressure.
D.cohesion.
E.transpiration.
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Question 15 of 30
3.33/ 3.33 Points
A plant physiologist is trying to determine which nutrients are essential to the growth of plants. Based on this information, which of the following methods would he or she use to achieve this?
A.Girdling
B.Hydroponics
C.The cohesion-tension method
D.The pressure-flow method
E.Guttation
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Part 4 of 8 - 9.99/ 16.65 Points
Question 16 of 30
3.33/ 3.33 Points
Which of the following is the most important contribution that large mammals such as bears and raccoons play in completing the life cycle of plants?
A.Helps plants obtain water
B.Pollination
C.Fertilization
D.Helps plants obtain nutrients
E.Seed dispersal
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Question 17 of 30
3.33/ 3.33 Points
Which of the following is not part of the female portion of the flower?
A.The style
B.The carpel
C.The stigma
D.The ovary
E.The filament
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Question 18 of 30
0.0/ 3.33 Points
If a flower has both a stamen and a carpel it is referred to as:
A.Dioecious
B.Complete
C.Imperfect
D.Staminate
E.Incomplete
Feedback: When a flower has both a stamen and a carpel it is referred to as being a complete flower.
Question 19 of 30
3.33/ 3.33 Points
A biologist is researching the portion of the embryonic plant that stores food until the first leaves become functional. Based on this information, he or she would be researching which of the following structures?
A.The plummule
B.The hypocotyl
C.The radicle
D.The epicotyl
E.The cotyledons
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Question 20 of 30
0.0/ 3.33 Points
Which structure of the embryo within a seed is not correctly identified?
A.The radicle is the embryonic root
B.The embryo is formed by fertilization by endosperm
C.The hypocotyl is the embryo plant below the attachment of the cotyledons
D.The epicotyl is the shoot above the attachment of the cotyledons
E.A cotyledon is the seed leaf
Feedback: The endosperm stores food and has nothing to do with fertilization.
Part 5 of 8 - 6.66/ 6.66 Points
Question 21 of 30
3.33/ 3.33 Points
What is the purpose of this lab activity?
A.To compare the rates of germination for several plant species under varying environmental conditions
B.To measure the metabolic activities for several plant species under varying environmental conditions
C.To compare the growth of roots and leaves in plants exposed to different levels of light and nutrients
D.To compare the rates of transpiration for several plant species under varying environmental conditions
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Question 22 of 30
3.33/ 3.33 Points
In the lab simulation how did you find out how much water a plant used during the experiment?
A.You calculated the amount with the calculator.
B.The volume in milliliters showed up in the table.
C.The volume in milliliters was displayed below the photometer.
D.A voice told you the volume in milliliters.
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Part 6 of 8 - 9.99/ 9.99 Points
Question 23 of 30
3.33/ 3.33 Points
A plant needs stomata because:
A.They regulate nutrient loss across leaves
B.The leaves would curl up without them
C.It cannot conduct photosynthesis without them
D.They permit gases to move in and out of leaves
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Question 24 of 30
3.33/ 3.33 Points
Which of the following is not needed for a plant to undergo transpiration?
A.Pollen
B.Roots
C.Vascular system
D.Stomata
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Question 25 of 30
3.33/ 3.33 Points
Some of the water absorbed by a plant’s roots is used for photosynthesis, but much is lost to the environment through which process?
A.Perspiration
B.Condensation
C.Transportation
D.Transpiration
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Part 7 of 8 - 3.33/ 9.99 Points
Question 26 of 30
3.33/ 3.33 Points
In the simulation it can be seen that the fan:
A.Only made a difference when it was run with the lamp
B.Had no effect on transpiration rates
C.Increased the transpiration rates for all plants compared to normal
D.Increased the transpiration rates for some plants and decreased it for others
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Question 27 of 30
0.0/ 3.33 Points
The fan appeared to increase the rate of transpiration in the plants tested. This is most likely due to the fact that:
A.Stomata closed shut
B.More light energy fell on the plant
C.Humidity was increased
D.Evaporation was increased
Feedback: Wind causes water to be lost from the surface of the plant due to the evaporation process causing an increase in transpiration rates.
Question 28 of 30
0.0/ 3.33 Points
How does light affect the rate of transpiration in English Ivy?
A.Adding light has no effect on the rate of transpiration after one hour
B.Adding light decreases the rate of transpiration 2.1 mL
C.Adding light typically increases the rate of transpiration
D.Adding light decreases the rate of transpiration
Feedback: According to the data collected, light almost always increased the transpiration rate.
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