If plasma membrane ruptures or breaks down then molecules of some substances will freely move in and out of the cells and cell would die due to the disappearance of the protoplasmic material
Without the golgi apparatus, the cells will be disabled from packing and dispatching materials that were produced by the cells.
Mitochondria are known as the powerhouse of the cell because it releases the energy in the form of ATP(Adenosine triphosphate) molecules required for different activities of life.
Lipids and proteins are synthesised in the ER [Endoplasmic Reticulum].
Amoeba obtain its food by cell membrane which forms the food vacuole. The food vacuole contains the food items that the Amoeba has consumed.
The process of movement of a water molecule from a region of higher concentration to a region of lower concentration through a semipermeable membrane is known as osmosis.
(i) Water accumulates in the hollowed portions of B and C as a difference in the water concentration is observed. Therefore, osmosis will take place.
(ii) Potato A is essential in this experiment as it is significant to compare different scenarios seen in potato cups B, C and D.
(iii) Cup A didn't show any change in the concentration which is essential for osmosis. And cup D has dead cells thus there is no existence of a semipermeable membrane for water flow.
Cells were first discovered by Robert Hooke in 1665. He observed the cells in a cork slice with the help of a primitive microscope.
Cells form the structure of an entity. They perform all the fundamental activities independently. That's why are called the structural and functional unit of life.
Both CO2 and H2O moves from higher concentration to lower concetration. The process for movement of CO2 is called diffusion and of H2O is called osmosis.
Plasma membrane is called as selectively permeable membrane because it only allows a certain molecules to pass through it.
The two organelles that contain their own genetic material are:
If the organisation of a cell is destroyed due to some physical or chemical influence, then Lysosomes will burst and enzymes will digest such cells.
If the organisation of a cell is destroyed due to some physical or chemical influence, then Lysosomes will burst and enzymes will digest such cells. That's why are lysosomes known as suicide bags.
Proteins are synthesised inside the cell in ribosomes, hence, are referred to as protein factories.