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hindi ko alam eeii ...
Pulmonary Circulation: It's All in the LungsPulmonary circulation is the movement of blood from the heart, to the lungs, and back to the heart again. This is just one phase of the overall circulatory system.The veins bring waste-rich blood back to the heart, entering the right atrium throughout two large veins called vena cavae. The right atrium fills with the waste-rich blood and then contracts, pushing the blood through a one-way valve into the right ventricle. The right ventricle fills and then contracts, pushing the blood into the pulmonary artery which leads to the lungs. In the lung capillaries, the exchange of carbon dioxide and oxygen takes place. The fresh, oxygen-rich blood enters the pulmonary veins and then returns to the heart, re-entering through the left atrium. The oxygen-rich blood then passes through a one-way valve into the left ventricle where it will exit the heart through the main artery, called the aorta. The left ventricle's contraction forces the blood into the aorta and the blood begins its journey throughout the body.
The one-way valves are important for preventing any backward flow of blood. The circulatory system is a network of one-way streets. If blood started flowing the wrong way, the blood gases (oxygen and carbon dioxide) might mix, causing a serious threat to your body.
You can use a stethoscope to hear pulmonary circulation. The two sounds you hear, "lub" and "dub," are the ventricles contracting and the valves closing.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoI did not write this question but have been VERY curious about this for many years since my saliva was found to not contain amylase. Anyone?
Wiki User
∙ 11y agowill it couldnt break down the complex sugar
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What might happen if salivary amylase was not present or didn't work properly?
You may not be able to digest your food in the stomach area it would just stay there and build up until eventually you vomit .
How is salivary amylase active in the stomach?
Amylase is not active in the stomach, the environment is too acidic. This is why the pancrease produces and secretes amylase into the duodenum after food leaves the stomach, to replace the amylase secreted by salivary glands and denatured by stomach acid.
What would happen if you didnt have any veins?
Death.
What would happen to a person if they didnt have nucleic acids?
they would eventually die
What would happen of we didn't have lactase?
if we didnt have lactase we would all be dead
What if salivary glands this did not work?
Well your mouth would be very dry, swallowing would hurt (saliva coats chewed up food, called a bolus, as you swallow it). Digestion of carbohydrates/starch normally begins in the mouth because of salivary amylase in the saliva; this would not happen if there was no saliva
A mutation in the genes for salivary amylase will greatly affect the chemical digestion of what?
Amylase is responsible for the digestion of starches in the body. If a mutation occurred in the genes coding for the production of amylase, this would interfere with the body's ability to digest starches and other complex carbohydrates (which begins in the mouth with enzymes from the salivary glands).
What might happen if salivary amylase was not present or didn't work properly?
You may not be able to digest your food in the stomach area it would just stay there and build up until eventually you vomit .
How is salivary amylase active in the stomach?
Amylase is not active in the stomach, the environment is too acidic. This is why the pancrease produces and secretes amylase into the duodenum after food leaves the stomach, to replace the amylase secreted by salivary glands and denatured by stomach acid.
After a meal of greasy french fries which enzymes would you expect to be most active?
salivary and pancreatic amylase, dissaccharideases, lipase
What is the kind of enzyme?
Enzymes are chemicals that accelerate chemical processes. They are like a catalyst where they do not participate in the reaction itself; they just make it happen more quickly. Enzymes can usually be found in the digestive system. An example would be salivary amylase.
Which enzyme will help you hydrolyze polymers into disaccharides or monomers after eating carbohydrates?
The most common enzyme would be salivary/pancreatic amylase which hydrolyzes the polysaccharide amylose.
Would amylase be active in the stomach?
Salivary amylase works well around pH 7 (inside the mouth), but inside the stomach are gastric juices which contain HCl. Since the HCl drops the pH of the solution significantly, it denatures the amylase so that it will no longer function as it normally would, breaking down starch and glycogen.
What would happen if you didnt have patriotism?
nothing
What would happen to us if you didnt have whales?
we would die
What would happen if you didnt have any sleep?
You would die
What would happen if you didnt have an aorta?
you would blow up
