NEET Questions

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The primary structure of proteins is due to




The primary structure of proteins is determined by peptide bonds, which are covalent bonds formed between the amino group of one amino acid and the carboxyl group of another. This sequence of amino acids linked by peptide bonds forms the protein's primary structure.
Proteins means




Proteins are macromolecules, which are large, complex molecules made up of long chains of amino acids. These macromolecules play a variety of crucial roles in biological processes and structures.

Which is not true about monosaccharides?





Monosaccharides are not always ketoses; they can also be aldoses. For example, glucose is an aldose while fructose is a ketose. Ketoses have a carbonyl group (C=O) within the carbon chain, whereas aldoses have it at the end of the chain.
Which bimolecular fights against infectious organisms?




Proteins, particularly antibodies and other immune proteins, are essential in fighting against infectious organisms. They recognize and neutralize pathogens like bacteria and viruses.

an organism X was found to have the following characters.the organism X is commonly called JOKERS OF PLANT KINGDOM .which of the  followingis not the correct character of X?





mycoplasma is pathogenic in animals and plants 

End of every polypeptide chain is known as:




The end of a polypeptide chain is referred to as the terminal. Polypeptides have two ends: the N-terminal (amino end) and the C-terminal (carboxyl end).
Which are the terminals of polypeptide chain?




The terminals of a polypeptide chain are the N-terminal (amino end) and the C-terminal (carboxyl end). These termini are crucial for protein synthesis and function.

The secondary structure of protein means:





No explanation available.
Which of the following is correct for the quaternary structure of protein?




No explanation available.
Which of the following bond groups are involved in the formation of quaternary Protein?




The formation of quaternary protein structures involves various types of bonds including disulfide bonds and ionic bonds. Disulfide bonds are strong covalent bonds formed between cysteine residues in different polypeptide chains, while ionic bonds are electrostatic attractions between oppositely charged side chains.
Which one is not correct for hemoglobin?




No explanation available.
Find out the miss matched pair




Immunoglobulin is not responsible for the movement of the body. It is an antibody that plays a key role in the immune response by identifying and neutralizing foreign objects such as bacteria and viruses. Hence, option 4 is the mismatched pair.
Which of the following statement is incorrect about lmmunoglobulin?




Immunoglobulins (antibodies) are not present in blood cells; they are present in the blood plasma. They consist of more than one polypeptide chain and have the property of immunity. Hence, option 3 is incorrect.
The classification of the protein in two types depends on




Proteins are classified into two main types based on their structure and function. Structural proteins provide support and shape to cells and tissues, whereas functional proteins perform various biochemical activities, such as enzymes, hormones, and antibodies.
Which one molecule is finding a Weakly acidic substrate of unknown function in The nuclei of human WBC ?




No explanation available.