BSC 108 Exam 2 (University of Alabama) with Verified Questions and Answers.
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Course
BSC 108
Institution
BSC 108
BSC 108 Exam 2 (University of Alabama) with Verified Questions and Answers.BSC 108 Exam 2 (University of Alabama) with Verified Questions and Answers.BSC 108 Exam 2 (University of Alabama) with Verified Questions and Answers.
BSC 108 Exam 2 (University of Alabama) with Verified
Questions and Answers.
The process of photosynthesis does what? - ANS captures light energy from the sun
and converts it to chemical energy stored in sugars and other organic molecules
Equation for Photosynthesis in Words - ANS water + carbon Dioxide + light energy -->
glucose + oxygen
Equation for Photosynthesis - ANS 6H2O + 6CO2 + light energy --> C6H12O6 + 6O2
Water enters plants through? - ANS their roots
Carbon Dioxide enters plants through? - ANS pores in the leaf called stomata
Photosynthesis occurs in? - ANS chloroplast
Structure of a chloroplast - ANS stroma, thylakoid membrane, grana, inner and outer
membrane
Chlorophyll molecules are embedded in the? - ANS inner thylakoid membrane
The primary function of plant pigments is? - ANS to absorb solar energy
What happens in light dependent reactions? - ANS Energy from sunlight is absorbed
and converted into chemical energy (ATP)
Where do light dependent reactions take place? - ANS thylakoid membranes of
chloroplasts
What is a light independent reaction called? - ANS Calvin Cycle
What happens in light independent reactions (Calvin Cycle)? - ANS Uses CO2 and the
ATP and NADPH from light dependent reactions to produce sugar/glucose.
In the Calvin Cycle, ATP is used to? - ANS provide the energy for sugar synthesis
In the Calvin Cycle, NADPH is used for? - ANS electrons in the reduction of carbon
dioxide into sugar
Where do light independent reactions (Calvin Cycle) occur? - ANS the area in the
chloroplast called the stroma
Leaves are green because? - ANS chlorophyll molecules absorb violet-blue and red
light, but reflect or transmit green-yellow light
, Process of light dependent reactions - ANS chlorophyll absorbs solar energy and ejects
an electron, which is passed down an electron chain, and water is split, releasing O2
Requirements for light dependent reactions - ANS H2O, ADP, and NADP+
Products for light-dependent reactions - ANS O2 and the energy-storing compounds
ATP and NADH
Requirements for light-independent reactions (Calvin Cycle) - ANS ATP, NADPH, CO2,
a five-carbon sugar called RuBP, and the enzyme rubisco
Products for light-independent reactions (Calvin Cycle) - ANS Glyceraldehyde-3-
phosphate (G3P), which can be used to make glucose
Carbon dioxide is fixed during? - ANS The Calvin Cycle
How is C4 photosynthesis different from C3 photosynthesis? - ANS C3 photosynthesis
produces a three-carbon compound via the Calvin Cycle while C4 photosynthesis
makes an intermediate four-carbon compound that splits into a three-carbon compound
for the Calvin Cycle
C3 Photosynthesis - ANS The most common form of photosynthesis- a one-stage
process in which atmospheric CO2 is used to form 3-phosphoglycerate, a three-carbon
sugar
C4 photosynthesis - ANS The two-stage photosynthetic pathway in which CO2 is first
fixed in mesophyll cells to form 4-carbon acids, and then the 4-carbon acids are broken
down into 3-carbon acids in the bundle sheath cells
Examples of C4 plants - ANS sugarcane and corn
Why do some plants use C4 photosynthesis? - ANS It is an adaptation for hot and dry
weather
Photosynthesis - ANS the process that stores energy in the form of glucose
Cellular Respiration - ANS the process that releases energy from glucose
An oxidation reaction involves? - ANS the loss of electrons
A reduction reaction involves? - ANS the gain of electrons
Glucose from food is converted to? - ANS Co2, releasing energy that is used to produce
ATP in the process of cellular respiration
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