Discoverie
Who discovered cell And in which year
Robert Hooke in 1665
What will happen if a cell is kept in hypotonic solution
Water enters in the cell and cell will swell
Name different cell organelles
ER,Golgi Apparatus,Lysosome ,Mitochondria,Vacuoles
Define Nucleus
Nucleus is the control centre of cell which controls cellular activity
Who discovered the living cell and in which year
Leeuwenhoek in 1674
Define diffusion
Spontaneous movement of a substance from a region of high concentration to a region where its concentration is low
Name two types of ER.Write function of ER
SER,RER
ER help in transport of material in side the cytoplasm
How prokaryotes and Eukatyotes be differentiated on the basis of nucleus
Prokaryotes lack true nucleus and membrane bound organelles
Who propose cell theory
Schleiden and Schwann then further expanded by Virchow
Define hypotonic and isotonic solutions
Hypotonic-When medium surrounding the cell has a higher water concentration than the cell.
Isotonic solution-Solution in which medium has exactly the same water as the cell
Why mitochondria is called powerhouse of the cell
The energy is produced in mitochondria in the form of ATP
Which molecule is responsible for inheritance of characters in nucleus
Chromosome,DNA
Who discovered nucleus and in which year
Robert Brown in1831
Define hypertonic solution
The medium has a lower concentration of water than the cell.The cell will shrink
What are plastids.
Name different types of plastids
Plastids are organelles present in plant cell.Chromoplast,Leucoplast
Whst are the types of cell division
Mitosis and Meiosis
Who coined the term protoplasm and in which year
Purkinje in 1839
Define Osmosis
The movement of water molecules from a region of high water concentration to low concentration through a semipermeable membrane
What are cisterns.Write the funtion of Golgi apparatus
The membrane bound vesicles arranged parallel to each other in stacks in golgi apparatus
Golgi apparatus help in storage ,modification and packaging of products in vesicles
When the mitosis division takes place in cell
During grrowth and repair