Figures at a glance

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FIGURE 1

Figure 1: COVID- 19 virus

FIGURE 2

Figure 2: The transmission cycle of SARS-CoV2- in the target cell. SARS-CoV2- enters host cells by a membrane fusion or endosomal pathway. The S protein of SARS-CoV2- is connected to the ACE2 receptor in the target cell and enters into the target cell by viral fusion. The SARS-CoV2- virus produces its RNA polymerase that synthesizes virus RNAS, this virus RNA transcribes smaller sub-genomic positive RNAs that are used to produce structural proteins. The proteins are completed in the membrane of the Endoplasmic Reticulum (ER) and are placed in a nucleocapsid, the progeny viruses are then released from the target cell through exocytosis by Golgi vesicles and are transferred by droplets causing infections

FIGURE 3

Figure 3: Chemical structure of morphine

FIGURE 4

Figure 4: Intracellular morphine activation