<u>Phenylketonuria</u>
Explanation:
Phenylketonuria (PKU) is a type of a rare inherited metabolic disorder.
Etiology: PKU results from excessive accumulation of the amino acid phenylalanine in the body. Normally, phenylalanine will be converted to tyrosine (forms neurotransmitters) by the action of the enzyme phenylalanine hydroxylase.
Among people with PKU, a defect in the PAH gene which codes to synthesize this enzyme occurs which leads to the absence of this enzyme. So the phenylalanine which is normally present in dietary protein is not metabolized and gets accumulated. This gene is inherited by the child only if both the parents are with the defective PAH gene.
Symptoms: Stunted growth, behaviroral disturbances, learning difficulties, seizures, tremors etc.
Treatment: Basic treatment is to follow a diet which limits dietary sources of phenylalanine. High protein foods like meat, egg should be avoided. Children can be given PKU formula to supplement their nutritional needs.
Because both eat primary consumers.
Your body cells use oxygen you breath to get energy from the foods you eat. The process is called "Cellular Respiration." This process or function consists of the cell using oxygen to break down sugars in the body. When the cell uses the oxygen to break down sugars, carbon-dioxide is produced and energy is released, thus producing the energy your body needs.
"Hemoglobin" is a protein with Red Blood cells (also referred to as RBC's) that are responsible for the transport of oxygen. The Cardiovascular System consists of the heart and vessels and may also be referred to as the vascular system or the circulatory system. The heart functions as a muscular pump that pushes blood through the vessels to all areas of the body and the vessels function to carry it back to the heart as well. Hence the name "circulatory."
-Medical Student (College Level)
The water will move out of the fish by osmosis due to existence of concentration gradient .
Answer:
a) argon-39 (2.69 × 102 years)
b) carbon-14 (5.73 × 103 years)
c) calcium-41 (1.03 × 105 years)
d) krypton-81 (2.29 × 105 years)
e) iron-60 (1.5 × 106 years)
f) hafnium-182 (9 × 106 years)
Explanation:
The most unstable isotopes would be the one which will have small half life. A half life depicts the time period in which a radioactive isotope would reduce to a quantity just half of its originals quantity. Thus isotopes with high half life period will take much longer time to reduce to their original quantity. Thus on arranging the given isotopes in decreasing order of stability, the following series is obtained –
a) argon-39 (2.69 × 102 years)
b) carbon-14 (5.73 × 103 years)
c) calcium-41 (1.03 × 105 years)
d) krypton-81 (2.29 × 105 years)
e) iron-60 (1.5 × 106 years)
f) hafnium-182 (9 × 106 years)
