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Which group requires oxygen but is inhibited by high concentrations?
anaerobes
How is glycolysis turned off?
When an enzyme in a pathway is inhibited by the product of the reaction sequence, feedback inhibition occurs. The product molecule "feeds back" to stop the reaction sequence when the product is abundant.
What happens when no NAD plus is present during glycolysis?
Without NAD+ in glycolysis, the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate cannot occur, halting the production of ATP. As a result, glycolysis is inhibited, and the cell's ability to generate energy through this pathway is compromised.
What are example of enzymes regulated by feed back?
Glucokinase is the enzyme responsible for phosphorylation of glucose in the first step of glycolysis. The glucokinase complex is modified by two different molecules: citrate and ATP. Citrate and ATP are both products of the sequence of reactions in aerobic respiration and are consequently products of glycolysis. As these two molecules' concentrations in the cell build up, they bind to the allosteric site of glucokinase and shut it down.
How does the water in the cells behave when in high or low concentrations of water?
In high solute concentrations water will flow out of the cell. In low solute concentrations water will flow into the cell.
Which group requires oxygen but is inhibited by high concentrations?
anaerobes
How is glycolysis turned off?
When an enzyme in a pathway is inhibited by the product of the reaction sequence, feedback inhibition occurs. The product molecule "feeds back" to stop the reaction sequence when the product is abundant.
What happens when no NAD plus is present during glycolysis?
Without NAD+ in glycolysis, the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate cannot occur, halting the production of ATP. As a result, glycolysis is inhibited, and the cell's ability to generate energy through this pathway is compromised.
What are example of enzymes regulated by feed back?
Glucokinase is the enzyme responsible for phosphorylation of glucose in the first step of glycolysis. The glucokinase complex is modified by two different molecules: citrate and ATP. Citrate and ATP are both products of the sequence of reactions in aerobic respiration and are consequently products of glycolysis. As these two molecules' concentrations in the cell build up, they bind to the allosteric site of glucokinase and shut it down.
How does the water in the cells behave when in high or low concentrations of water?
In high solute concentrations water will flow out of the cell. In low solute concentrations water will flow into the cell.
Physiological test reveal that anxious inhibited infants?
They have high and variable heart rates.
What medical condition is associated with high blood concentrations of uric acid?
High blood concentrations of uric acid can lead to gout. Gout is the most commonly associated medical condition with high blood concentrations of uric acid.
Do certain plants or animals have high concentrations of chlorine?
Chlorine is not essential for plant or animal metabolism and is not typically found in high concentrations in biological systems. Plants and animals may accumulate chlorine from environmental sources but do not store it in high concentrations.
Which vessel would carry blood high in nutrients?
veins carry blood with high concentrations of waste products and arteries carry blood with high concentrations of nutrients
Can high levels of NADH and low levels of NAD plus stimulate glycolysis?
No it cannot. NADH inhibits glycolysis, the Krebs Cycle and the electron transport chain. HIGH levels of NAD however does stimulate glycolysis but High levels of NADH and low levels of NAD does not stimulate glycolysis but rather inhibits it.
What is a sentence for inhibited?
Inhibiting an enzyme responsible for constructing the cell wall.
What is the function of NAD plus glycolysis?
to accept high energy electrons
