How can you calculate the magnification of a microscope?
Magnification of a microscope is calculated by multiplying the powers of eyepiece and objective lenses. Mathematically, M = P1 x P2, where P1 is the power of eyepiece and P2…
Describe the microscopic structure of the cell.
The cork cells were the first cells to be observed. They were composed of box-like compartments, forming a honeycomb structure. Cell organelles are found embedded in the cytoplasm. These are…
Which cell organelle controls most of the activities of the cell?
Nucleus, also known as the brain of the cell, controls most of the activities of the cell because it contains DNA (Deoxyribonucleic acid) which contains all the information of the…
Why is endocytosis found in animals only?
For endocytosis to occur, the outermost membrane should be flexible like the plasma membrane of animals. But in plant cells, cell wall is the outermost membrane which is very rigid.…
Define diffusion.
Movement of molecules from a region of higher concentration to a region of lower concentration is called diffusion.
Which organelles other than nucleus contain DNA?
Mitochondria and plasmids contain DNA.