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AP Biology Exam (units 5-8) Questions & Answers 100% Solved $12.99   Add to cart

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AP Biology Exam (units 5-8) Questions & Answers 100% Solved

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AP Biology Exam (units 5-8) Questions & Answers 100% Solved CELL CYCLE Correct answercell cycle stages Correct answer-interphase, mitosis, cytokinesis interphase Correct answer-G1 phase, S phase, G2 phase G1 phase Correct answer-The first gap, or growth phase, of the cell cycle, consisting o...

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  • August 8, 2024
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AP Biology Exam (units 5-8) Questions & Answers 100%
Solved
CELL CYCLE Correct answer-




cell cycle stages Correct answer-interphase, mitosis, cytokinesis




interphase Correct answer-G1 phase, S phase, G2 phase




G1 phase Correct answer-The first gap, or growth phase, of the cell cycle, consisting of
the portion of interphase before DNA synthesis begins.




S phase Correct answer-The synthesis phase of the cell cycle; the portion of interphase
during which DNA is replicated.




G2 phase Correct answer-The second growth phase of the cell cycle, consisting of the
portion of interphase after DNA synthesis occurs.




Mitosis Correct answer-part of eukaryotic cell division during which the cell nucleus
divides

-prophase, metaphase, anaphase, telophase




prophase Correct answer-Chromosomes become visable, nuclear envelop dissolves,
spindle forms

, AP Biology Exam (units 5-8) Questions & Answers 100%
Solved
Metaphase Correct answer-Chromosomes line up in the middle of the cell




anaphase Correct answer-Phase of mitosis in which the chromosomes separate and
move to opposite ends of the cell




telophase Correct answer-After the chromosome seperates, the cell seals off, Final Phase
of Mitosis.




Cytokinesis Correct answer-division of the cytoplasm to form two separate daughter cells




G0 phase Correct answer-A nondividing state occupied by cells that have left the cell
cycle, sometimes reversibly.




cell cycle check points Correct answer-control mechanisms in eukaryotic cells which
ensure proper division of the cell

G1, S, G2, M




G1 checkpoint Correct answer-checks for cell size, nutrients, growth factors and DNA
damage




S checkpoint Correct answer-checkpoint that determines if DNA has been replicated
properly

, AP Biology Exam (units 5-8) Questions & Answers 100%
Solved

G2 checkpoint Correct answer-checks for cell size and DNA replication




M checkpoint Correct answer-Spindle assembly checkpoint. Mitosis will not continue if
chromosomes are not properly aligned.




MPF Correct answer-mitosis promoting factor




cyclins and cyclin-dependent kinases (cdks) Correct answer-two types of regulatory
proteins involved in cell cycle control




How MPF and cyclins and cdks interact Correct answer-MPF provides a chemical signal
that tells the cell to continue past the G2 checkpoint. MPF is made up of cyclin, a protein
encoded by photo-oncogenes, and a kinase which provides energy through phosphorylation for
process necessary for successful mitosis. The cyclin breaks down after the cell passes through
G2 checkpoint (if it stayed available always, cell would be pushed through G2 checkpoint even if
not ready). The kinase does not degrade and instead stays to be reused later on.




cancer Correct answer-any malignant growth or tumor caused by abnormal and
uncontrolled cell division

6 ket mutations:

-unlimited cell growth

-ignore checkpoints

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