Answer: Pentose phosphate pathway produces ribose-5-phosphate sugars that are used in the production of DNA and RNA molecules.
Explanation: Pentose phosphate pathway takes place in the cytosol like glycolysis, with its end products being ribose-5-phosphate sugars and NADH used in production of RNA and DNA.
Difference between these pathways are that the pentose phosphate is anabolic. It uses alot of energy, NADPH and ATP for building. Unlike glycolysis its primary function is not energy production, which on the other hand glycolysis is catabolic, primarily leading to the the production of energy.
Answer: c. Scientists mistakenly thought pollution reflected sunlight and heat rather than absorbed it.
Scientist mistakenly thought pollution reflected sunlight and heat rather than absorbed it. This best explains that air pollution that was once blamed for global cooling is now considered responsible for global warming because the carbon dioxide from greenhouse effect will reflect the sunlight and will split the UV rays and prevent them to enter inside the earth. But carbon dioxide is responsible for increasing the global temperatures.
Meconium ileus, in newborns, may indicate the presence of cystic fibrosis
Cystic fibrosis is a genetic disorder mainly associated with cells capable of producing mucus. These cells are found in sweat glands, digestive system and lungs belonging to respiratory system. Thus, the abnormality in mucus production, in sticky and thick nature, disrupts the normal functioning of human body. They block the ducts and tubes, which can result in life threatening condition.
The mutation responsible for cystic fibrosis occurs in the gene CFTR, which is abbreviated form of Cystic fibrosis trans membrane conductance regulator. The primary function of gene is to regulate the exchange of fluids and salts present in the cells.
Meconium ileus refers to the inability of bowel movement in the newborn. This occurs due to thick and sticky mucus, which is indicative of cystic fibrosis, as discussed above.
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