BSC 108 Kennedy University of Alabama Test 2 Exam Questions and Answers.
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Course
BSC 108
Institution
BSC 108
BSC 108 Kennedy University of Alabama Test 2 Exam Questions and Answers.BSC 108 Kennedy University of Alabama Test 2 Exam Questions and Answers.BSC 108 Kennedy University of Alabama Test 2 Exam Questions and Answers.
BSC 108 Kennedy University of Alabama Test 2 Exam
Questions and Answers.
How does crossing over occur? - ANS the points where homologues cross and
exchange genetic material are chosen at random and will be different in each cell that
undergoes meiosis
What are the stages of the human life cycle? - ANS gametes, fuse during fertilization,
produce a diploid zygote (fertilized egg), adult zygote
What happens in telophase II? - ANS newly forming gametes are haploid, each
chromosome has just one chromatid
What happens in anaphase II? - ANS sister chromatids separate to opposite ends of
cell
What happens in metaphase II? - ANS chromosomes line up at metaphase plate
What happens in prophase II? - ANS starting cells are the haploid cells made in meiosis
I, chromosomes condense
What happens in telophase I? - ANS newly forming cells are haploid, each chromosome
has two non-identical sister chromatids
What happens in anaphase I? - ANS homologues separate to opposite ends of cell,
sister chromatids stay together
What happens in metaphase I? - ANS homologue pairs line up at the metaphase plate
for separation
What happens in prophase I? - ANS chromosomes condense and pair up/align with its
homologue partner, so they line up
What happens during telophase? - ANS chromosomes uncoil and nuclear envelopes
form
What happens during anaphase? - ANS chromatids begin to separate and move
towards opposite ends of the cell
What does the process of photosynthesis do? - ANS captures light energy from the sun
and converts it to chemical energy stored in sugars and other organic molecules
What is the general equation for photosynthesis? - ANS 6H20 (water) + 6CO2 (carbon
dioxide) + light energy -> C6H12O6 (glucose) + 6O2 (oxygen)
, Where does water enter plants? - ANS through their roots
Where does carbon dioxide enter plants? - ANS pores in the leaf called stomata
Where does photosynthesis occur? - ANS chloroplasts
What is the structure of a chloroplast? - ANS stroma, thykaloid membrane, grana, inner
and outer membranes
Where are chlorophyll molecules? - ANS embedded in the inner thykaloid membrane
What is the primary function of plant pigments? - ANS to absorb solar energy
How do light dependent reactions work? - ANS light reactions use the energy of sunlight
to make the energy-storing compounds ATP and NADPH
How does the Calvin cycle (light independent reaction) work? - ANS uses the energy
stored by the light dependent reactions to make G3P, which can be used to make
glucose
Why are leaves green? - ANS chlorophyll molecules absorb violet-blue and red light but
reflect or transmit green-yellow light
What are the processes of the light dependent reactions? - ANS chlorophyll absorbs
energy and ejects an electron, which is passed down and electron transport chain, and
water is split, releasing O2
What are the requirements for the light dependent reactions? - ANS H2O, ADP, and
NADP+
What are the products of light reactions? - ANS O2 and the energy compounds ATP
and NADH
What are the requirements for the Calvin Cycle reactions? - ANS ATP, NADPH, CO2, a
five-carbon sugar called RuBP, and the enzyme rubisco
What is fixed during the Calvin Cycle? - ANS carbon dioxide
What is the product of the Calvin Cycle? - ANS glyceraldehyde-3-phosphate (G3P),
which can be used to make glucose
How is C4 photosynthesis different from C3 photosynthesis? - ANS C4 is an adaptation
for hot and dry weather, C3 is the traditional photosynthesis
What is an example of a C4 plant? - ANS sugarcane and corn
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