CALM 3 Flashcards
an ordered series of events involving cell growth and cell division that produces two new daughter cells.
cell cycle
In eukaryotic cells, the stages of the cell cycle are divided into two major phases:
Interphase and the mitotic (M) phase.
During ____ , the cell grows and makes a œpy of its DNA.
interphase
During the _____phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
mitotic {M}
cell undergoes normal growth processes while also preparing Ibr cell division.
interphase
The three stages of interphase are called
G1, S & G2
also called the first gap phase, the cell grows physically larger, copies organelles, and makes the molecular building blocks it will need in later steps.
G1
the cell synthesizes a complete copy of the DNA in its nucleus.
s phase
microtubule-organizing structure
centrosome
It also duplicates a microtubule-organizing structure called the centrosome.
s phase
the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis.
G2
ends when mitosis begins.
G2 phase
a type of cell division in which one cell (the mother) divides to produce two new cells (the daughters) that are genetically identical to itself.
Mitosis
part of the division process in which the DNA of the cell’s nucleus is split into two equal sets of chromosomes.
mitosis
Condensed chromosomes take up stains. The spindle assembles, centrioles appear and the nuclear envelope breaks down,
prphase
Chromosomes are uncondensed.
Presence of Nucleus and Nucleus.
interphase
Chromosomes align
metaphase
Centromeres part and chromatids separate
anaphase
The spindle disassembles and the nuclear envelope re-forms
telophase
has no partition
anaphase
Sperm and oocytes are ____ or sex cells.
gametes,
Paired structures , called ___ where the sperm and oocytes are manufactured;
gonads
Are manufactured in the seminiferous tubules, which wind tightly within the testes, which descend into the scrotum.
Sperm cells
dd secretions to the sperm cells to form seminal fluid.
prostate gland, seminal vesicles, and bulbourethral glands