Answer:
The correct answer is - they lack a nucleus, DNA, and organelles like the endoplasmic reticulum or mitochondria
Explanation:
Red blood cells are considered as the cells, carry oxygen with the help of hemoglobin protein present in it to the various parts of the body from the lungs and carry CO2 back to the lungs.
These cells are different from the normal cell as they do not participate in the protein synthesis due to the fact that they lack various cell organelle and cell components required. Nucleus and DNA are major components or organelle missing from these cells. In addition to these two, endoplasmic reticulum and mitochondria also missing from RBCs.
Answer:
Nuclear energy because it can never be reused again
"Viruses straddle the definition of life. They lie somewhere between supra molecular complexes and very simple biological entities. Viruses contain some of the structures and exhibit some of the activities that are common to organic life, but they are missing many of the others. In general, viruses are entirely composed of a single strand of genetic information encased within a protein capsule. Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell".
From The Bacteriophage T4 Virus
Answer: Option B
The concentration of protein in the postglomerular blood is high comparef with arterial blood because as water passes into the capsule, the concentration of protein in the blood will increase.
Explanation:
Kidneys are bean shaped organs present in veterbrates and it is located in the retroperitoneal space. Kidney filtration involves where blood passes through the afferent arterioles and enters the glomerulus where blood that can be filter like nitrogenous waste and water moves towards the glomerulus and nonfilterable substances such as cells and serum albumins pass out through efferent arterioles. Thee concentration of protein increases from arterial to the post glomerular because some of the water molecules diffuses to the filtrate therefore, reducing water concentration. This lead to increase in concentration of protein because water is not available to diffuse the protein.
