<span>Most nutrients absorbed by the small intestine pass to the portal venous system which drains to the liver, where they are processed. Fats (lipids) are passed to the lymphatic system through lymph vessels called lacteals. They are passed from the lymphatic system to the blood circulation via the thoracic duct.</span>
Answer:
The damage to ozone layer is done by halogens such as Chlorine and Bromine.
<span>Proliferation of lymphocytes occurs immediately after activation, as well as the encounter of antigen. First, these antigen are bound, after which activation begins. Activation immediately leads to proliferation, as well as differentiation. Proliferation is an increase in the number of something, in this case, in the number of lymphocytes, or white blood cells. </span>
Answer:
A. Prions do not contain genetic information, which is affected by ionizing radiation.
B. Denaturants may affect the tertiary structure of prions.
C. Prions are proteins.
Explanation:
Prions are the proteinaceous infectious particles that cause many degenerative diseases of neurons in both animals and humans. They consist of only protein and no DNA or RNA. Due to the absence of DNA or RNA as genetic material, these infectious particles are resistant to ionizing radiation. Ionizing radiations affect nucleic acids of pathogens to destroy them.
Denaturation of proteins affects their secondary and tertiary structures and leave them non-functional. Denaturation may be caused by changes in temperature, pH, disturbance of hydrogen bonds, etc. Therefore, to destroy prions, they need to be denatured.
A cell maintains homeostasis through division and repair. The cell cycle has three, stages that are used to help a cell maintain homeostasis. Photosynthesis in a plant cell makes glucose and oxygen for the cell. Then the cell uses that glucose and oxygen to do cellular respiration for the cell to live and function.