Both plant and animal cells comprise membrane-bound organelles, such as endoplasmic reticulum, mitochondria, the nucleus, Golgi apparatus,... View Article
d) Coke Coke is a product obtained from coal, whereas the rest are obtained by refining of petroleum through fractional distillation.Coke is a... View Article
c) Amylase Amylase is defined as a digestive enzyme that breaks starch into small carbohydrate molecules. This enzyme is produced in two... View Article
d) Pneumonia Pneumonia is an inflammatory condition of lung affecting the lung alveoli. It is caused by a virus or bacteria. Symptoms include... View Article
False Epithelial cells allow regulation of materials between body and external environment. They allow selective transfer of materials between... View Article
(b) Sclerenchyma cells are the permanent tissues present in the plants. They provide hardness and stiffness to the plant and are composed of dead... View Article
The substances which have very low ignition temperature and can easily catch fire with a flame are called inflammable substances. Inflammable... View Article
The tablet is not made of iron metal, instead it contains a salt of iron. Oral iron is given as ferrous sulfate or ferrous gluconate or amino... View Article
The substances like C, N, S, P, H and O enter the living body through biogeochemical cycles. The atmospheric carbon (CO2 ) is used by plants... View Article
a) Parent rock from which soil is formed The lichens growing on the rocks release certain chemicals that break down the rock into a fine powder... View Article
(c) Typhoid Typhoid is caused by bacteria called as Salmonella typhi. It is a water-borne disease. Typhoid patient's faeces show presence of... View Article
c) Suberin A suberin lamella is found in the suberized cells of cork tissue. It is separated from the contents of the cell by a cellulose wall.... View Article
b) Chemotropism There are few chemical substances, which are actively responsible for bringing a curvature movement in plant organs. When... View Article
(d) cytoplasm The fluid that fills up the cells is referred to as the cytoplasm. It encompasses the cytosol with filaments, ions, proteins, and... View Article
Copper is less reactive. So, when it is added to zinc sulphate solution, it doesn't displace zinc from the salt solution. Thus, the displacement... View Article
True Lining of blood vessels, lung alveoli and kidney tubules are all made of squamous and cuboidal epithelial tissues. The lining of the... View Article
