Ch. 10 cellular reproduction Flashcards
(29 cards)
As a cell becomes larger ____________ increases faster than the surface area
the volume
The larger a cell becomes there is greater demand on the ______.
DNA
If a cell becomes too large the cell membrane ____________ or bring in enough materials like food.
cannot get rid of wastes
____________ solves the problem of getting too big because the cell divides into 2 daughter cells.
Cell division
The cell copies all DNA so each daughter cell has the ______________ of original DNA.
exact same amount
The cell ___________ solving the surface are and volume problem.
splits in half
______________ provides genetic diversity for the continuation of a species.
Sexual reproduction
The offspring is genetically identical to the single parent
Asexual reproduction
In asexual reproduction there is no exchange of _______________ so no genetic diversity.
DNA information
Sexual reproduction provides ____________ for the continuation of a species.
genetic diversity
Asexual is reproduction without the ___________________________.
fusion of reproductive cells
________________ use binary fission.
Prokaryotes
The 3 phases of interphase:
Growth 1: cell growth
Synthase: dna replication
Growth 2: preparation
Growth 1 phase:
Cells increase in size
Centrioles are duplicated
Intense growth and activity
Synthesis Phase:
new DNA is synthesized when the chromosomes replicate
G2 phase:
prepares for cell division
________ is the process of cell division, including mitosis and cytokineis.
M phase
Chromosomes become visible in __ phase.
M
Phases of mitosis in order:
Prophase
Metaphase
Anaphase
Telophase
____________ is the longest phase.
Prophase
chromosomes appear & sister chromatids attach at centromere
prophase
nuclear envelope breaks down
prophase
centrioles begin to move to opposite poles and the spindle connects between them
prophase
the chromatids attach to the middle of the spindle at their centromere, each sister chromatid faces an opposite pole
metaphase
