Chapter 3: cells Flashcards
includes phagocytosis, pinocytosis, and a receptor- mediated form.
Endocytosis
Driven by kinetic energy of the molecules
Diffusion simple and Diffusion osmosis
Provides for cellular uptake of solid or large particles from the cell exterior
Endocytosis
Require ATP (cellular energy)
Endocytosis, Exocytosis, and solute pumping
Moves small or lipid-solute solutes through the membrane
Diffusion, simple
Driven by hydrostatic (fluid pressure)
Filtration
Transports amino acids and Na+ through the plasma membrane
Solute pumping
A means of secreting cell products
Exocytosis
Moves water through a semipermeable membrane
Diffusion, osmosis
Proceeds against a concentration gradient; require(s) a carrier
Solute pumping
Follow a concentration gradient
Diffusion, simple and Diffusion, osmosis
Division of the _______ is referred to as mitosis
nucleus
Cytokineses is the division of the _______.
Cytoplasm
The major structural differences between chromatin and chromosomes is that the latter are _________________
Condensed
Chromosomes attach to the spindle fibers by undivided structures called ____________
Centromeres
If a cell undergoes nuclear division but not cytoplasmic division, the product is a _________.
bi-nucleate
The structure that acts as a scaffolding for chromosomal attachment and movement is called the ________
Spindle fibers
___________ is the period of cell life when the cell is not involved in division
Interphase
Chromosomes align on the equator of the spindle
Metaphase
Chromosomes first appear to be duplex structures
Prophase
When the chromosomes cease their poleward movement, this phase begins
Telophase
Chromatin coils and condenser to form deeply staining bodies
Prophase
Period during which a cell carries out its usual metabolic activities
Interohase
Centromeres break, and chromosomes begin migration toward opposite sides
Anaphase
