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everything has a pH
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∙ 15y ago
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∙ 12y ago8-9
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What is the subunits of starch?
The subunit of starch is simple carbohydrate
Can enzymes function at any pH?
No. They function best at the pH corresponding to their usual/intended environment. For example, pepsin, present in the stomach, which is highly acidic, functions best at acidic pH, while trypsin, secreted into the duodenum together with basic bicarbonate, functions best at moderately basic pH. This is true also within subcellular compartments: the optimal pH of lysosomal enzymes is acidic, matching the acidic proteolytic environment inside the lysosome. That said, most enzymes present in the cytosol (~neutral) and blood (~neutral) function best around neutral pH.
Is liquid starch the same as tide?
no...liquid starch is starch in liquid form. tide is used to wash clothes.
What are the two healthy starch products?
They are Grains and starch vegtables
What does corn and rice have incommon Are they both a starch?
they are both a starch and can have long cooking times
How do you know the conc of starch in solution?
by a pH paper or pH solution.
Can you digest starch?
Pepsin does not digest. It breaks down proteins into amino acids. Pepsin cannot break down starch. This is probably because the pH of starch is higher than the optimum pH of Pepsin.
How will the time taken for starch to digested in amylase be affected by the temperature?
investigate the relationship between reaction temperature and the effectiveness of the Enzyme amalayse on starch
Why does amylase work best at pH 7?
Because, Amylase is the main emzyne in saliva that converts starch into sugar and the average pH of saliva is 7.
Why does 0.8 percent HCl stop hydrolysis of starch by amylase?
Amylases has an optimal pH of around 7. HCl has a higher pH, which will denature the cell, changing the shape of it and breaking down the bonds so the substrate (in this case starch) wont be able to bind with it.
What is likely to prevent digestion of starch by carbohydrase enzymes in the stomach?
the hydrochloric acid is likely to prevent the digestion of starch by carbohydrase enzymes in the stomache because the carbohydrase enzymes optimum PH is PH7. The Hydrochloric acid in the stomache makes the PH in the stomache PH3 therefore the stomache has too weak a PH for the enzymes to be able to work.
What temperature is best for starch digestion?
37 C, body temperature
Why did the enzyme not digest starch at any pH?
becuase it soor your face! aww u gnna take that !@£$%&*?
Why does amylase work best at pH around 7?
Because that's the average (more or less) pH of the mouth and of the small intestine. If the optimum pH of amylase is not met, the enzyme will denature.
What are the factors that affect fermentation rate?
age, temperture, ph, substrate, concentration
What edible substances dissolve in saliva?
Starch will begin to be broken down into simpler polysaccharide molecules by salivary amylase. The enzyme lipase is also present in saliva but is usually inactive at the pH of saliva (around pH 6.2) and consequently will not act upon lipids (fats and oils) until it reaches the stomach where the pH is lower (and nearer to the enzyme's optimum PH.)
Can Saliva is acidic or basic?
The pH range of the mouth is 5.6-6.9 slightly acidic, this is the environment in which human amylase (starch breakdown enzyme) is most active.
