IMPORTANT TERMS:
·
Agranal
Chloroplast: Chloroplasts having thylakoids that do
not form grana as in algae.
·
Active
Transport: A method in which a cell transports material by
expending energy.
·
Antiport:
Counter transport of two solutes across a membrane in opposite direction.
·
Bioplast:
A
term originally used for a mitochondrion by Altman (1890).
·
Cell
Biology: The study of organization and functioning of cell.
·
Cytology:
The study of cell with the help of light microscope.
·
Cyclosis:
Constant movement of cytoplasm around the vacuole/vacuoles.
·
Co-transport:
Transport
of a molecule and an ion together across a membrane by a single carrier
protein.
·
Differentially
Permeable: A selectively permeable membrane that allows some
particles to pass through and prevent others at the same time.
·
Ergastoplasm:
A term originally used for granular endoplasmic reticulum by Granier (1897).
·
Ergasome:
Another
term for a polyribosome.
·
Electrochemical:
The
difference of electrical charges and concentration of the ions present on two
sides of a membrane.
·
Golgi-ER-Lysosome
(GERL): A region of Golgi maturating face, thought to be
involved in the production of lysosomes and/ or pre secretory granules.
·
MTOCs:
Microtubule organizing centre.
·
Nucleolar
Organizer: Chromosomal region that contains the genes for
ribosomes RNAs and induces formation of nucleolus.
·
Osmotic
Potential: It is the capacity of a solution to take in water
from the other side of a semi- permeable membrane.
·
Organelles:
Organised protoplasmic subunits having specific functions.
·
Totipotency:
The ability of a somatic cell to form a complete organism.
·
Turgidity:
A state of a plant cell when the cells protoplast exerts pressure on the cell
wall due to endosmosis.
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