Bio 1023 FINAL BRCC Exam Questions With Correct Answers
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Bio 1023 FIN
Institution
Bio 1023 FIN
Ammonia provides the form of _____ that plants can take up and use.
The Haber-Bosch process is an industrial process used to produce _____ fertilizer.
Which of these must be converted from an atmospheric gas into a form that plants can
take up from soil?
Guano was harvested in the mid-19th cen...
Bio 1023 FINAL BRCC Exam Questions
With Correct Answers
Ammonia provides the form of _____ that plants can take up and use.
The Haber-Bosch process is an industrial process used to produce _____ fertilizer.
Which of these must be converted from an atmospheric gas into a form that plants can
take up from soil?
Guano was harvested in the mid-19th century as a way to provide _____ to crops. -
CORRECT ANSWER-nitrogen
Which two nutrients most frequently limit plant growth? - CORRECT ANSWER-nitrogen
and phosphorus
The bacterium Bacillus thuringiensis (Bt) protects crops from ___ - CORRECT
ANSWER-some insect larvae
If an existing crop variety lacks a particular trait that is desirable, what is the most
efficient way to introduce the desired trait? - CORRECT ANSWER-genetic modification
of the plant
Why are scientists interested in introducing extra copies of nonphotochemical
quenching (NPQ) genes into food crops? - CORRECT ANSWER-to increase the
efficiency of photosynthesis
What method is considered the fastest and surest way to improve a crop? - CORRECT
ANSWER-crossing two varieties of the same plant
Plants are eukaryotic cells containing organelles. Which organelle is only found in plant
cells? - CORRECT ANSWER-cell walls
The xylem and phloem act much like the human circulatory system. Which statement
regarding the xylem and phloem is FALSE?
A.) The xylem and phloem work together to transport essential nutrients to plant cells.
B.) The phloem's only function is to transport sugars from the roots to the leaves.
C.)Water is moved up the xylem by transpiration.
D.)The xylem transports water from the root system to the shoot system.
, E.) Xylem and phloem are present in both the root and shoot systems. - CORRECT
ANSWER-B is false
In addition to water and sugar, plants require certain nutrients to grow. Certain bacteria
present in fertile soil help plants obtain ___ - CORRECT ANSWER-nitrogen
When counting the rings of a tree, you are actually counting rings of ___ - CORRECT
ANSWER-xylem
Woody plants such as giant redwoods contain greater amounts of substances that
make them tougher and more rigid than other plants, and other woody plants, such as
cellulose and __ - CORRECT ANSWER-lignin
The stomata open and close to allow which molecule(s) to evaporate during
transpiration? - CORRECT ANSWER-water
Certain "carnivorous" plants obtain their nitrogen from __ - CORRECT ANSWER-
insects
Each fall, most deciduous trees produce vibrant colored leaves. Which statement best
explains why a leaf may turn yellow in the fall? - CORRECT ANSWER-the green
pigment in the leaves decreases in the fall
Which statement best explains why leaves appear green in the spring and summer? -
CORRECT ANSWER-high levels of chlorophyll mask the other pigments produced by
the leaves.
Which strategy is used by plants in hot, dry climates to conserve water? - CORRECT
ANSWER-thick waxy coating on their leaves
An oak tree that turns vibrant red in the fall is most likely a result of ____ - CORRECT
ANSWER-Increased sugar production trapped in the leaves and high anthocyanin
levels
Trees shed their leaves during the fall in order to __ - CORRECT ANSWER-Conserve
water during the dry winter months
In flowering plants, the reproductive organs are housed in the flower. Which of these is
NOT a reproductive organ of a flowering plant? - CORRECT ANSWER-The Tap Root is
not a reproductive organ of a flowering plant.
Most plants are hermaphrodites, which means they __ - CORRECT ANSWER-contain
both male and female reproductive organs
Which method was developed by plants to prevent self-pollination? - CORRECT
ANSWER-Male and female reproductive organs located at different heights
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