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- Dictionarywilt/wilt/
verb
- 1. (of a plant, leaf, or flower) become limp through heat, loss of water, or disease; droop. Similar Opposite
noun
- 1. any of a number of fungal or bacterial diseases of plants characterized by wilting of the foliage: "these varieties are more resistant to aphids and wilt"
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Wilting: The loss of rigidity of the non-woody parts of a plant is known as wilting. The fall in the turgor pressure towards zero is the sign of the occurrence of wilting.
Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature. The word Plasmolysis was generally derived from a Latin and Greek word plasma – The mould and lusis meaning ...
17,100. R.H. Whittaker proposed the five-kingdom classification in 1969. This classification was based upon certain characters like mode of nutrition, thallus organization, cell structure, phylogenetic relationships and reproduction. This form of kingdom classification includes five kingdoms Monera, Protista, Fungi, Plantae and Animalia.
Description. Rust is a group of fungal diseases that affect plants. The name “rust” is given because the affected plants have a characteristic “rusty” appearance. Smut is another group of fungal diseases that affects plants, especially grasses. The name “smut” is given due to the sooty, black appearance in affected plants.
(c) Name and define the physical process being investigated in this experiment. Solution:-Osmosis is the transport of water through a semi-permeable membrane from a solution of low concentration to a solution of high concentration. 6. Study the diagram given below and answer the questions that follow:
Define Valency. The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element. We all know how electrons in an atom are arranged in shells/orbitals. Valence electrons are those electrons which are present in the outermost orbit of the atom.
Electronegativity is a chemical property that describes the power of an atom in a molecule to attract shared-pair electrons towards itself. There is a large difference in electronegativity for atoms from the left- and right-hand sides of the periodic table. Electronegativity is an important quantity in determining the nature of bonds between ...
Atoms Definition & Molecule Definition - Atoms are the smallest particle of an element, which may or may not have an independent existence but always take part in a chemical reaction. Molecules always exist independently and retain their physical and chemical properties.
Osmotic pressure is the pressure required to stop water from diffusing through a membrane by osmosis. It is determined by the concentration of the solute. Water diffuses into the area of higher concentration from the area of lower concentration. When the concentration of the substances in the two areas in contact is different, the substances ...
Example. Thus, the pH of an acidic solution of HNO 3 (10 –3 M) = 3, a basic solution of KOH having [OH –] =10 –4 M and [H 3 O +] =10 –10 M will have a pH = 10. pH of acids is generally less than 7 whereas for bases it is greater than 7.
