Prokaryotic cells lack mitochondria, which is the main site of ATP synthesis through the electron transport system. Enzymes required for the... View Article
No, peroxisomes do not have a double membrane. Peroxisomes are single membrane-bound organelles. They are rich in enzymes and carry out the... View Article
Yes, fimbriae are present in the eukaryotic cells as well. E.g. Fallopian tubes contain fimbriae at the end near the ovary. They are finger-like... View Article
Cotyledons are also known as embryonic leaves, which appear from the germinating seeds. They generally store food reserves and become swollen and... View Article
A species is the basic unit of taxonomy. It is defined as a group of interbreeding individuals, which produce fertile offspring. They share... View Article
All the eukaryotic cells have a nucleus. The nucleus is absent in prokaryotic cells. Further reading: Cell - The Unit of Life Cell Cycle... View Article
Animal cells lack cell walls. The cell wall is present in plant cells, bacteria and fungi. Further reading: Cell - The Unit of Life Cell... View Article
Biodiversity refers to the variation existing in the world. It includes genetic diversity, species diversity and as well as ecosystem diversity.... View Article
The cell membrane or plasma membrane is made up of phospholipid bi layer. The main constituents of a cell membrane are lipids, proteins and... View Article
Seed is the fertilised ovule and final product of sexual reproduction in angiosperms. It contains an embryo enclosed in the seed coat. Seed... View Article
A leaf is the main part of the plant, which performs photosynthesis. The internal structure of the leaf shows three main parts, they are... View Article
The distinctive features of stem are: It develops from the plumule of the embryo. It is the aerial part, which bears leaves, flowers, fruits,... View Article
Flowers can be classified based on various parameters. Below are the few examples of flower types: Bisexual - Flower has both androecium and... View Article
The nervous system is responsible for control, command and coordination in our body. The 4 major functions of the nervous system are: Maintain... View Article
The wall of the stomach is made up of 4 layers of tissues. They are: Serosa - It is the outermost layer of mesothelium Muscularis - It is... View Article
From an evolutionary perspective, 99.9% of all organisms that have ever existed on earth are currently extinct. Read more by registering... View Article
