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Is it true that the mechanical breakdown of food exposes a larger surface area for chemical digestion?
Wiki User
∙ 10y ago
Yes, it is true. The reaction rate depends also on the surface area of the reactants.
Wiki User
∙ 10y ago
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What activity is a mixing action that exposes materials to secretions and absorptive surfaces?
peristalsis
What type of Mold grows on Carved Pumpkins?
fungi when you carve a pumpkin it exposes it to fungi then it grows in the pumpkin.
Why does reducing solute particle size increase the speed at which the solute dissolved in water?
It exposes more of the solute surface to the water molecules.
Why does reducing solute particle size increase the speed at which solute dissolves in water?
It exposes more of the solute surface to the water molecules.
When DNA is about to be copied where does it split?
It splits down the middle due to the action of the enzyme helicase. This exposes the nitrogen bases on both strands of the DNA.
How does mechanical digestion and chemical digestion take place in the mouth and stomach?
Mechanical digestion is the actual physical break down of food into smaller pieces. One example of this is mastication (chewing) which occurs in the mouth by the teeth, which act to cut and grind food into smaller pieces. This makes them easier to later digest as it increases the SA of the food molecules. A certain type of food is made of lots of different chemicals but certain chemicals are found in the center. The chewing breaks it apart and exposes these chemicals so that they can be broken down quicker/easier. Another form of mechanical digestion is peristalsis; succesive contractions of muscles in the alimentary canal which form a wave of constriction that moves food along. In the stomach, there are three layers of muscle (which is unique as the rest of the alimentary canal only has 2). It has longatudinal, circular and oblique muscle which together contract and relax to form the churning motion which mixes food around. This aids in digestion as it slightly breaks up the food and also increases the contact the food has with enzymes and acids in the gastric juice. Bile salts (which are found in bile secreted from the liver) also act to emulsify large fat globules into smaller fat droplets. Its sort of like how detergent works and it breaks up all molecules and then puts a 'soapy' shield around them so they cant join back together. This increases the SA of the molecule of fat so that enzymes (particulary pancreatic lipase) can act on it and break it down to smaller, simpler forms are body can absorb. Chemical digestion on the other hand, is the chemical break down of foods into smaller pieces. An example of this is how enzymes break them down. In particular, the enzyme salivary amylase is found in our saliva which acts to break down starch into simpler forms (polysaccharides --> dissaccharides). Another form of this digestion is how the HCl acid in the stomach helps to break down food and destroy any microorganisms that accompanied the food.
If you are exposes to liquid chemical agents how many minutes do you have to use the rsdl kit to decontaminate your skin?
2 minutes or less
What does bile do in the digestive process?
It aids in fat digestion and absorption by acting as an emulsifier. (pulls fats apart) It turns fat into emulsification droplets, which exposes more surface area to lipase.
What does chemical waste do to planet Earth?
Well it kills the planet that we live on. So dont kil it. chemical waste breakes down our atmosphere and exposes us to even more harmful UVA and UVB rays.
What is the duration of Woman Who Exposes Herself?
The duration of Woman Who Exposes Herself is 1.13 hours.
When was Woman Who Exposes Herself created?
Woman Who Exposes Herself was created on 1981-01-09.
What exposes soil?
what kind of animals exposes soil? A pig, mostly. any animal can, actually. Also, if the grass as been worn down from being walked on repeatedly it exposes soil.
What way can an animal cause mechanical weathering?
Earthworms tunnel through the soil and move soil particles around. The motion breaks some particles into smaller particles. It also exposes fresh surfaces to continued weathering
In what way can an animal cause mechanical weathering?
Earthworms tunnel through the soil and move soil particles around. The motion breaks some particles into smaller particles. It also exposes fresh surfaces to continued weathering.
What is the effect of increasing the surface area of a solid?
It exposes more of the solid to whatever you want to mix it with so that whatever you are doing, whether it be a physical or chemical change, will take place more rapidly.
Who can kill Superman?
Anyone who has kryptonite and exposes him to it.
What do you call someone who exposes the truth?
Whistleblower
