Cells - The fundamental unit of life Flashcards
Study of form, structure and composition of cells is called
Cytology
Robert Hooke published a book called
MIcrographia
The scientist to first observe the free living cells
Leeuwenhoek
Purkinje coined the term
protoplasm
The scientist who called protoplasm as the physical basis of life
Huxley
The Cell theory was proposed by
Schleiden and Schwann
Omnis cellula-e-cellula (all cells arise from pre existing cells) was given by
Rudolf Virchow
The compound microscope was invented by
Zacharias Janssen
Electron microscope was developed by
Knoll and Ruska
The shape of erythrocyte (red blood cells)
Discoidal
The smallest cell in the living world is
Mycoplasma
Passive transport
The movement of ions and other atomic or molecular substances across cell membranes without need of energy input
The spontaneous movement of substances or molecules from a region of higher concentration to a region of low concentration
Diffusion
Osmosis
The movement of solvent from a region of its higher or lower concentration to a region of lower or higher concentration through a semi-permeable membrane
In Hypotonic solution the cell
Gains water by endosmosis
In Hypertonic solution the cell
Looses water by exosmosis
A plant cell becomes plasmolysed when kept in a
Hypertonic solution
A plant cell becomes turgid when kept in a
Hypotonic solution
Erythrocytes in Hypotonic solution become
Swollen and Haemolysed
Erythrocytes in Hypertonic solution become
Crenated