Answer:
External polysaccharides and Lipid A of Gram-negative bacteria may trigger the acute inflammatory response.
Explanation:
Lipid A is an endotoxin lipid component responsible for the toxicity of gram-negative bacteria. Its the last internal region among the three regions of the lipopolysaccharide (LPS) which is also called as endotoxin molecule. Its hydrophobic nature helps it to attach the LPS to the outer membrane. Moreover, lipid A anchor, a polysaccharide core attached with a chains of carbohydrates.
Answer:
False. Bone can be classified as a connective tissue because it provides support and structure to the body.
Explanation:
Connective tissue is those tissues that fill spaces between organs and other tissues, and also provide support to the organism. It is characterized by the presence of different types of cells separated by intercellular material synthesized by them.
The bony tissue is the principal structural and supportive connective tissue that differs from the other connective tissues because its extracellular matrix is mineralized, which makes it possible to accomplish its support and protection function due to its rigidity and hardness. The mineral that deposits in the osteoid matrix is the calcium phosphate, composing hydroxyapatite crystals. The bony tissue is a storage site of calcium and phosphate, which are available for maintaining constant the calcium blood levels according to the individual physiological needs.
Almost all areas of Biology have developed in the twentieth century, but few areas have gained a lot of importance. Some of these are :
1. Genomics and Genetics
2. Biotechnology
3.Cell and molecular biology
<h2>Answer:</h2>
The involved organelles are:
- Nucleus
- Ribosomes
- Golgi apparatus
<h3>Explanation:</h3>
First in nucleus the DNA is transcripted into mRNA which is the transported to cytoplasm.
mRNA is the message containing the information about the sequence of amino acids in proteins.
In cytoplasm mRNA is translated into proteins in the ribosomes.
After making proteins in ribosomes, they are packed into vesicles in Golgi apparatus.
In Golgi apparatus they are directed to their destination whether it is inside the cell or out side the cell.