C. RNA because it is single stranded
Both energy and nutrients go through a food web.
The correct answer is cGMP retinal rhodopsin traduction.
Signal transduction is the cellular which comments on signal to another. An ordered sequence of the biochemical reaction is needed for signal transduction processes to take place which leads to cellular response. Some of the signal transduction are
(i) Desensitization of signals
(ii) Amplification of constant signals
(iii) A specification of cues
(iv) Integration of multiple signals.
Some of the components of signal transduction pathway are
Signal, machinery that translates and amplifies to cell response, and receptor for the message.
Answer:
An ionic bond is formed between a metal and a non-metal. Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.
Explanation:
There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 - 200 kcal/mol). Whether two atoms can form a covalent bond depends upon their electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and negatively charged ion (anion). The bond between these two ions is called an ionic bond.
Diffusion is the process in which movement of molecules take place from their higher concentration to their lower concentration. It is an important biological process in any living organism. Two of these are:
1. It allows the exchange of molecules within the organism and with the environment. For example: gaseous exchange in the alveoli of the lungs.
2. It also regulates water content in the body.
