What occurs to the rate of reaction catalyzed by ATP when cells have surplus ATP?
ATPs are known as currency of energy in a cell and they are very essential for the homeostasis of the cell. ATP molecules are involved in various pathways and when ATP change into ADP then they emits energy through breaking of phosphate bond in the reaction. ATPs are produced in the mitochondria through several process (mainly through aerobic respiration),
According to several previous studies, excessive ATP is not good for the reaction as they will not get enough substrate to catalyze the reaction and this will eventually reduce the rate of reaction as it is used for many other processes, so excessive or surplus ATP will drop the reaction rate catalyzed through ATP molecules.
What occurs to the rate of reaction catalyzed by ATP when cells have surplus ATP?
Draw a representation of what occurs in "The Antibody Reaction" step in cells where a reaction occurred. Label all parts appropriately. Describe what occurs in those cells in which there is a reaction. Why is there no reaction in the other cells?
The concentration of substrate X is low. What happens to the rate of the enzyme- catalyzed reaction if the concentration of X is doubled? 15. What effect does an increase in the enzyme concentration have on the rate of an enzyme-catalyzed reaction? 16.
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P + ADP This reaction can be thought of as two coupled reactions (P is phosphate): (1) glucose + P + glucose-6-P (2) ATP + ADP + P For the overall reaction, AG" = -16.7 kJ/mol. For the hydrolysis of ATP (equation 2), AG = -310 kJ/mol. All reactions are performed at 37°C. (a) What is AGº for reaction 1? Iglucose - 6-11 if AG...
Under what circumstances does an enzyme catalyzed reaction rate resemble a non-enzyme catalyzed reaction? At very low concentrations of substrate (Km is greater than S) the Michaelis-Menton equation can be simplified to? At very high concentrations of substrate, the Michaelis-Menton equation can be simplified to? How do you determine the initial rate of reaction
atp is critical to all cells. how does the structure of atp relate to the function of atp. what is the overall atp hydrolyzing and synthesizing reaction
In terms of the chymotrypsin-catalyzed reaction, what is the importance of the rate constant for the ratelimiting step k3?
Vmax of an enzyme-catalyzed reaction is A. the rate observed when the enzyme active sites are saturated with substrate B. independent of the amount of enzyme present C. the rate observed at the highest substrate concentration that can be experimentally obtained D. the initial rate observed at very low substrate concentrations
4. The growth rate of cells is directly correlated with the amount of ATP produced. The more ATP produced, the faster cells will grow. The process of mitosis and meiosis is heavily energy dependent. We will learn more about this in the Nucleic Acid section. If you treat yeast cells (eukaryotes) with a drug that raises the pH of the intermembrane space of the mitochondria, how will this affect the growth rate of the yeast and why?
19. Draw the mechanism of the acid-catalyzed reaction shown below. Note that it occurs in 6 steps, and that in each step only one of the four basic mechanistic processes occurs (protonation, deprotonation, nucleophilic attack, elimination).
1. When the cell’s ATP supply is depleted, which of the following enzyme’s activity is increased? Hexokinase Pyruvate kinase Glucokinase Phosphofructokinase Explain why this enzyme activity is tied to ATP levels. 2. The pyruvate kinase catalyzed step is not a reversible reaction in glycolysis, how then does gluconeogenesis start from pyruvate? Show the mechanism of the first step of gluconeogenesis. 3. Which of the following cofactors do not form a covalent bond with enzymes' lysine residues? Lipoamide Biotin NADH Pyridoxyl...