0
Every enzyme has a temperature range of optimum activity. Outside that temperature range the enzyme is rendered inactive and is said to be totally inhibited. This occurs because as the temperature changes this supplies enough energy to break some of the intramolecular attractions between polar groups (Hydrogen bonding, dipole-dipole attractions) as well as the Hydrophobic forces between non-polar groups within the protein structure. When these forces are disturbed and changed, this causes a change in the secondary and tertiary levels of protein structure, and the active site is altered in its conformation beyond its ability to accomodate the substrate molecules it was intended to catalyze. Most enzymes (and there are hundreds within the human organism) within the human cells will shut down at a body temperature below a certain value which varies according to each individual. This can happen if body temperature gets too low (hypothermia) or too high (hyperthermia).
What else can I help you with?
How will the time taken for starch to digested in amylase be affected by the temperature?
The time taken for starch to be digested by amylase will decrease as the temperature increases up to an optimal range. This is because higher temperatures speed up enzyme activity. However, if the temperature exceeds the optimal range, the enzyme may denature, leading to a decrease in digestion time.
What is the effect of temperature on enzymes activity of lactose in bacterial cells?
Temperature significantly affects the activity of lactose enzymes in bacterial cells. Generally, as temperature increases, enzyme activity rises due to enhanced molecular movement, up to an optimal temperature where the enzyme functions best. Beyond this optimal point, high temperatures can lead to denaturation of the enzyme, causing a loss of activity. Therefore, maintaining an appropriate temperature is crucial for optimal lactose enzymatic activity in bacteria.
What effect would decreased incubation temperature have on pepsin activity and why?
Decreased incubation temperature would likely decrease pepsin activity because enzymes generally have optimal temperature ranges for activity, and lower temperatures can slow down enzyme reactions. Pepsin is a digestive enzyme that functions optimally at around body temperature (37°C), so decreasing the temperature may reduce its efficiency in breaking down proteins.
What effect might temperature have on protease activity?
Temperature can significantly influence protease activity, as enzymes generally have an optimal temperature range where their activity is maximized. At lower temperatures, protease activity may decrease due to reduced molecular motion, leading to fewer effective collisions between the enzyme and substrate. Conversely, at higher temperatures, enzyme activity may initially increase, but excessive heat can lead to denaturation, causing the enzyme to lose its functional shape and thereby reducing its activity. Overall, maintaining an optimal temperature is crucial for maximizing protease efficiency.
How does the effect of freezing differ from the effect of boiling in salivary amylase and cellulose?
Freezing would denature salivary amylase by disrupting its molecular structure, rendering it inactive. However, boiling would also denature salivary amylase but much more rapidly and completely. Cellulose is not affected by freezing but boiling can break down its rigid structure, making it more digestible.
What is the effect of mercury chloride on salivary amylase activity?
Mercury chloride is known to inhibit salivary amylase activity by binding to the enzyme and disrupting its function. This inhibition can lead to a reduction in the ability of the enzyme to break down starch into sugars in the mouth, affecting the initial stages of carbohydrate digestion.
What effect enzymes activity?
Temperature, pH, substrate concentration
What effect would decrease incubation temperature have on pepsin activity?
Pepsin activity would decrease and at a very low temperature pepsin would be inactive.
What is the effect of temperature and pressure on a gas?
Increased molecular activity / heat / instability
What is a question that can be answered using scientific method?
"What effect does temperature have on the rate of enzyme activity?"
Does the temperature of a magnet effect its magnetic field?
Not until the magnet reaches its "Curie point" or temperature. Then magnetic activity ceases.
What two internal body conditions effect enzyme activity?
temperature and pH
How will the time taken for starch to digested in amylase be affected by the temperature?
The time taken for starch to be digested by amylase will decrease as the temperature increases up to an optimal range. This is because higher temperatures speed up enzyme activity. However, if the temperature exceeds the optimal range, the enzyme may denature, leading to a decrease in digestion time.
What is the effect of parasympathetic stimulation on this salivary glands?
Parasympathetic stimulation increases saliva production in the salivary glands by causing the release of acetylcholine, which binds to receptors on the gland cells and triggers the secretion of saliva. This response helps with digestion and keeps the mouth moist.
What is the effect of temperature on enzymes activity of lactose in bacterial cells?
Temperature significantly affects the activity of lactose enzymes in bacterial cells. Generally, as temperature increases, enzyme activity rises due to enhanced molecular movement, up to an optimal temperature where the enzyme functions best. Beyond this optimal point, high temperatures can lead to denaturation of the enzyme, causing a loss of activity. Therefore, maintaining an appropriate temperature is crucial for optimal lactose enzymatic activity in bacteria.
9th grade level biology question. Temperature and what can affect enzyme activity?
effect of ph and concentration of subtrate
What is the effect of parasympathetic stimulation on the salivary glands?
The salivary glands work more. They produce more saliva. More enzymes are secreted. The saliva pass to the mouth cavity.
