Secondary structure is provided by hydrogen bonds between atoms in the polypeptide backbone of proteins. Interactions between the side chain atoms of the amino acid subunits form the conformation.
The secondary structure consists of local packing of the polypeptide chain into α-helices and β-sheets by hydrogen bonding between the peptide bond and the central carbon backbone. Tertiary (3D) structure is the shape that results from secondary structural folding determined by interactions between amino acid side chains.
Secondary structure results from hydrogen bonds that form between atoms in the polypeptide backbone. A hydrogen bond is formed between a partially negative oxygen atom and a partially positive nitrogen atom.
The tertiary structure is stabilized by side chain functional groups including several interactions, especially hydrogen bonds, salt bridges, covalent disulfide bonds, and hydrophobic interactions.
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Answer : The molecular formula of the compound is,
Explanation :
Molecular formula : It is the representation of substance by the symbols and it denotes the number of atoms of each element present in the compound.
Now count the number of carbon, hydrogen, nitrogen and oxygen atoms present in the given compound.
As we see that in the given compound, there are 8 atoms of carbon element, 3 atoms of oxygen element, 1 atom of nitrogen element, 9 atoms of hydrogen element.
Thus, the molecular formula of the compound will be
Answer:
the metal is gold I'd say
Answer:
Options (A), (B) and (C)
Explanation:
In an ecosystem, the transfer of nutrients takes place from one place o another. This input and output of nutrients continuously takes place in the ecosystem.
- The rainwater is also essential as it carries a certain amount of valuable nutrients such as calcium, fluoride, magnesium, and iron that are mixed with water, and this enriches the fertility of the soil and the water is taken up by the roots of the plants for the growth and expansion of plants.
- The nitrogen-fixing bacteria refers to those micro-organisms that are present in the soil and helps in the conversion of the atmospheric nitrogen into nitrogen compounds, which are helpful for the enhancement of the soil fertility.
- Chemical weathering usually refers to the process by which the rocks disintegrates due to the effect of chemical reactions. The micro-organisms and the plant roots release some acids sometimes that react with the rocks and help in breakdown releasing the nutrients that are stored in the rocks. This eventually mixes up with the soil and increases the quality of the soil.
Thus, the correct answers are options (A), (B) and (C).