Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose 6-phosphate to fructose 1,6-bisphosphate. This a an early reaction in the glycolysis pathway that is a regulatory step in the pathway. An increase int he amount of ATP in the cell might cause decrease in the amount of phosphofructokinase enzyme by a process called feedback inhibition. Glycolysis process is regulated at various steps in which conversion of fructose 6-phosphate to fructose 1,6-bisphosphate is one of the regulatory step.
Answer: In the presence of oxygen, an increase in the amount of ATP in a cell would be expected to INHIBIT THE PHOSPHOFRUCTOKINASE ENZYME AND SLOWS THE RATE OF GLYCOLYSIS.
The term that best describes the 10% salt solution relative to the cytoplasm of the cell is ' Hypertonic'
Explanation:
When the concentration of two solutionare compared they can be described as hypertonic, hypotonic or isotonic with relation to one another.
When two solutions have same concentration and osmotic pressure they are said to be isotonic solutions.
The solution which has higher molecular concentration and higher osmotic pressure than the other solution is called hypertonic solution.
The solution which has lower molecular concentration and lower osmotic pressure with respect to other solution is called hypotonic solution.
Here the solution of salt has a higher concentration than cell sap so it is a hypertonic.
The integumentary system (skin) reacts different on different sun intensity (different length exposure to sun).
For example, moderate exposure to the sunlight contributes to the production of melanin and vitamin D by the body. On the other hand, high exposure to sunlight can have negative health effects such as sunburn, which is an inflammatory response to DNA damage caused by UV radiation.
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
