Answer:
The correct answer is proteins.
Ribisomes are the site of protein synthesis or translation.
mRNA (messenger ribonucleic acid) carries the information stored in the nucleotide sequence of the DNA to the ribosomes.
mRNA is sandwiched between the small and large sub-units of the ribosomes which then provide three sites (A site, P site and E site) for tRNA (transfer RNA).
tRNA helps in decoding the codon sequence of mRNA and then add respective amino acid to the growing polypeptide chain.
Answer and Explanation:
The Immune System. It comprises the white blood cells, lymphatic system, etc. The immune response is the production of antibodies in response to antigens present in pathogens and other foreign matter.
The leukocytes are formed in the bone marrow of long bones and lymph nodes. Their function is to protect the body from invasion of foreign material like bacteria and viruses( pathogens). They help fight against infections by engulfing and digesting pathogens and production of antibodies which are proteins that bind to pathogens. Their number increases greatly during infections.
Answer:
Anaerobic Respiration
Explanation:
The first step in both anaerobic and aerobic respiration is called glycolysis. This is the process of taking one glucose (sugar) molecule and breaking it down into pyruvate and energy (2 ATP). ... The second step in anaerobic respiration is called fermentation.
Answer:
The order of bacterial structures that the bacteria would penetrate would be:
- Capsule.
- Lipopolysaccharide Membrane
- peptidoglycan
- Phospholipids Membrane.
Explanation:
A parasite like B. bacteriovorus faces some challenges in getting into a bacterial cell. This is because these cells have devices and strategies to prevent the entry of parasites and ensure the survival of the bacteria. The first challenge would be to penetrate the bacterial capsule. The capsule is a structure that is located around many bacteria. This structure is rigid, with sharp edges and thick thickness, which protects the bacteria from external agents. If B. bacteriovorus manages to go beyond the capsule, it will find a membrane, also thick, composed mainly of lipopolysaccharides, which will also provide protection and try to prevent the entry of the parasite. If this membrane is crossed, B. bacteriovorus will face another layer called peptidoglycan. This layer establishes itself as a cell wall, being very difficult to break. Some bacteria present one more layer after peptidoglycan, which is a membrane made by Phospholipids, which is highly selective and difficult to break, but is more fragile than the previous layers. Only after overcoming all these structures, the parasite will have access to the bacterial cel