Proteins.
Viruses require a host cell because they lack the cellular machinery needed to make proteins on their own. They rely on host cells to perform protein synthesis for them in order to replicate and infect other cells.
Some viruses lack the ability to replicate. These types of viruses often don't show symptoms in healthy people because they are not strong enough to cause illness.
yes
Antibiotics primarily target specific bacterial structures or functions, such as cell wall synthesis, protein synthesis, or DNA replication, which are absent in eukaryotic cells. Eukaryotic cells have different ribosomal structures and metabolic pathways that are not affected by the mechanisms of action of antibiotics. Additionally, viruses lack cellular structures and metabolic processes altogether, making them immune to antibiotics, which are designed to target living cells. Thus, antibiotics are effective against bacteria but do not harm eukaryotic cells or viruses.
No, non-living things do not have the ability to reproduce. Reproduction is a biological process that involves the creation of new individuals from existing ones, and non-living things lack the necessary biological mechanisms for reproduction.
They lack the genes necessary to do so.
metabolism
Antibiotics target specific bacterial structures and functions, such as cell walls and protein synthesis, which are absent in viruses. Viruses lack the cellular machinery to replicate independently and instead hijack host cells to reproduce. Consequently, antibiotics are ineffective against viral infections, which require antiviral medications that specifically disrupt viral replication processes. This distinction is crucial for appropriate treatment choices.
Viruses cannot reproduce on their own, as they require a host cell to replicate and produce new virus particles. They also lack cellular structures and metabolic processes, meaning they cannot carry out functions like energy production or protein synthesis independently. Additionally, viruses cannot respond to environmental stimuli in the way living organisms do, as they do not possess the machinery for sensing or reacting to their surroundings.
Viruses are not considered alive because they lack the ability to reproduce unless they have a host to reproduce for them. When viruses are not attache to a living cell they lose all living characteristics.
Viruses that consist of only a nucleocapsid are considered naked viruses. These viruses lack an outer lipid envelope and rely on the nucleocapsid structure for protection and infectivity. Naked viruses tend to be more stable in the environment compared to enveloped viruses.
A lack of sanitation is a breeding ground for bacteria and viruses to grow. These bacteria and viruses then affect the individuals visiting/living in these environments, and as a result, they are infected. [diseased]