NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Main source of energy & provide structural support
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Store energy, provide and steroids
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transport substances, speed up reactions, provide support, fight disease, regulate cell processes, and provide hormones
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stores, transmits, & communicates genetic information
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Detailed explanation-1: -A major function of nucleic acids involves the storage and expression of genomic information. Deoxyribonucleic acid, or DNA, encodes the information cells need to make proteins.
Detailed explanation-2: -The nucleic acid adenosine triphosphate (ATP), made up of an adenine nitrogenous base, a 5-carbon ribose sugar, and three phosphate groups, is involved in generating energy for cellular processes. The bonds between the three phosphate groups are high energy bonds, and supply the cell with energy.
Detailed explanation-3: -Eukaryotic organisms (animals, plants, fungi, and protists) store most of their DNA inside the cell nucleus and some of their DNA in organelles, such as mitochondria or chloroplasts. In contrast, prokaryotes (bacteria and archaea) store their DNA only in the cytoplasm.
Detailed explanation-4: -Nucleic acids are biomolecules found in the nuclei of all living cells, as one of the constituents of chromosomes. (i) DNA is responsible for the transmission of inherent characters from one generation to the next. (ii) Nucleic acids (both DNA and RNA) are responsible for protein synthesis in a cell.