Question

can someone please help me with 1-12

PROBLEMS 1. E.coli and elephants. What is meant by the phrase "uni. ty of biochemistry"? What are the implications of the unity of biochemistry? 2. Similar, but not the same. Describe the structural dif- ferences between DNA and RNA. 1 3. Polymers. Differentiate between proteins and glycogen in regard to their polymeric structure. 1 4. An authoritative belief. Define the central dogma of biology. 2 5. Information processing. Define replication, transcrip- tion, and translation in regard to the central dogma. 2 6. Hurry it up. What is an enzyme? / 1 7. Complex and less so. Differentiate between eukaryotic cells and prokaryotic cells. / 3 8. A diminutive organ? What is an organelle? / 3 9. Double bounded. Which organelles are surrounded by two membranes? 10. Perforated. How does the nuclear membrane differ from other membranes? 11. An exit strategy. Trace the pathway of the formation of a secretory protein from its gene to its exocytosis from the cell. 12. Function and structure. Match the function with the appropriate organelle in the column at right.

Answer 1

1. The phrase that refers to the fact that all organisms are remarkably similar at a level of biochemical, which strongly proposes that all organisms on the Globe are derived from a common ancestor.

2. DNA is a long polymer having four different nitrogenous bases: adenine, guanine, cytosine, and thymine whereas RNA is a polymer having Four different nitrogenous bases: adenine, guanine, cytosine, and uracil. Hence RNA has Uracil in place of thymine.

3. Proteins are linear polymers composed of 20 different amino acids joint by a peptide bond. Glycogen is a branched polymer composed of only glucose joint together by a glycosidic bond.

4. The central dogma of molecular biology is an explanation of the flow of genetic information within a living system. It is stated as "DNA makes RNA and RNA make protein.

5. DNA replication is the process by which a dsDNA molecule is copied to produce two identical DNA molecules.

The process of constructing a messenger RNA (mRNA) molecule using a DNA molecule as a template leads to the transfer of genetic information to the messenger RNA.

Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA).