MCQ
Ribozyme is:
- ARNA with additional phosphate.
- BRNA without sugar.
- CRNA without uracil.
- DRNA acting as enzyme.
Explanation:
A ribozyme is an RNA molecule with a well-defined tertiary structure that enables it to act like a protein enzyme in catalyzing biochemical and metabolic reactions within a cell.
These RNA molecules are enzymes that are not composed of proteins.
Ribozymes function as part of the large subunit ribosomal RNA to link amino acids during protein synthesis.
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$(1)$ On and average a healthy human breaths ...$X$....times/minutes
$(2)$ Every $100\, ml$ of oxygenated blood can deliver around ....$Y$.... of $O_2$ of the tissues under normal physiological conditions.
$X-Y$