GENERAL BIOLOGY Flashcards
process by which a single cell divides into two or more daughter cells.
Cell Division
the process by which a single cell divides into two identical daughter cells.
Mitosis
the process by which a single cell divides into four daughter cells
Meiosis
• Chromatin fibers in the nucleus start to
condense forming chromatids
• Chromatids, when formed, undergo
duplication to form the double stranded
chromosomes.
• Nucleolus is still visible.
Interphase
• Double stranded chromosomes are
formed while nuclear envelope is
starting to disappear.
• Centrioles are double as they move
towards the opposite poles of the
cell.
• Nucleolus is still visible
Prophase
• Nucleolus and nuclear envelope
disappeared completely.
• Each chromosomes receives spindle fibers
from the pair of centrioles which are
attached to kinetochores.
• Chromosomes will be able to align
Metaphase
The pair of centrioles moves
completely to the opposite poles of
the cell, enabling the double
stranded chromosomes to separate
• The force given by the centrioles; a
cleavage furrow is produced.
Anaphase
• Spindle fibers disappear releasing the
chromatids while nuclear envelope and
nucleolus.
Cytokinesis
• Cytokinesis is the process by which
the cell divides into two daughter
cells.
• Centrioles and all organelles are
distributed
• Complete separation of the
cytoplasm produces two identical
diploid daughter cells.
Telophase
selectively permeable layer composed of two phospholipids molecules and acts as the doorway that selects the entering and exiting substances to and from the cell.
Cell Membrane / Plasma Membrane
composed of hydrophilic heads
(Water-loving) and hydrophobic
heads (water-fearing).
Molecules
enables big or polymer
molecules to enter or leave the cell.
Bulk Transport
This happens when
the big molecules enter the cell.
Endocytosis
also known as “cellular eating”
Phagocytosis
also known as the “Cellular drinking”
Pinocytosis
allows the cell to remove big molecules
which are usually packed by golgi apparatus
Exocytosis