Gibberellins break seed dormancy in plants. It promotes seed germination. On the contrary ABA (Abscisic acid) induces dormancy and acts as an... View Article
The three accessory organs or glands of the digestive system are the pancreas, liver and gallbladder. Further reading: MCQs On Pancreas For... View Article
Photosystems are light-harvesting complexes involved in the absorption of light. Each photosystem consists of two parts. They are antennae and a... View Article
Nitrogen-fixing bacteria fix atmospheric nitrogen to ammonia, which can then be taken up by plants. The process is called biological nitrogen... View Article
Facilitated diffusion is diffusion mediated by transport proteins. The substances move down the concentration gradient from higher to lower... View Article
Redifferentiation is the process of maturing of dedifferentiated cells to perform specific functions and lose their capacity to divide again.... View Article
ATP is the energy currency of a cell. Plants require energy in various activities such as active transport of substances and ions, during the... View Article
Channel proteins have the ability to form hydrophilic channels or pores in the cell membrane and allow fast transport of similar molecules... View Article
The function of thyroid gland is regulated by TSH (Thyroid-stimulating hormone) secreted by the pituitary gland. Hypothalamus also controls the... View Article
The endodermis of the root contains deposition of suberin, which is a water-impermeable waxy material. It regulates the movement of water to the... View Article
Eukaryotic cells are present in all plants, animals and fungi. Bacteria contain prokaryotic cells. Eukaryotic cells have a well-defined nucleus... View Article
The first stable product of the Calvin cycle is 3-PGA (3-phosphoglyceric acid). It is a 3 carbon compound so the Calvin cycle is also called the... View Article
Meiosis takes place in germ cells, which are involved in male and female gamete formation during sexual reproduction. Further reading: Cell... View Article
Oxygen is transported by erythrocytes or RBCs. Haemoglobin present in red blood cells carries oxygen in the blood. Further reading: What Is... View Article
Pollen grains are released from microsporangium and reach the ovules on megasporophyll by air currents. The pollen tube carries the male gametes... View Article
Meiosis 2 is more like mitosis. Meiosis I is the reduction division and meiosis II is equational division like mitosis. Further reading:... View Article
Yes, Salmonella comes under phylum Monera. It is a genus of G-ve bacteria. Monera contains all the unicellular prokaryotes. Further reading:... View Article
Water affects the rate of photosynthesis indirectly. When the water supply is limited then stomatal closure affects the rate of photosynthesis.... View Article
Evidence that supports the theory of evolution are fossils, embryological studies, anatomical and morphological characteristics (homologous... View Article
